ESRD, Inc. will be exhibiting, presenting a technical paper (on DTA of bonded repairs) and providing a 2-hour training course in person and virtually at the ASIP Conference 2023 in Denver, CO from November 27-November 30, 2023.  We hope you will drop by our technical presentation, training course and/or booth to check out the latest ESRD developments!

ESRD’s Training Course

A 2-hour training course titled “Enhancements in StressCheck v12.0 for DaDT Analysis of 3D Fastened Joints” will be held Monday, November 27th from 10:00 AM – 12:00 PM MST by ESRD’s Brent Lancaster.  The course description is as follows:

As more DaDT and service life analysis (SLA) engineers look to incorporate the influence of assembly multi-body contact, fastener hole propping and/or fastener load transfer into their beta factor and/or stress intensity factor (SIF) predictions, it is imperative that the numerical simulation of these effects on 3D fracture mechanics parameters can be ascertained without inflicting cumbersome modeling workflows, endless meshing cycles, and high computational costs on the end user. This training course will outline proposed methodologies, guidelines and best practices for ESRD’s StressCheck Professional finite element analysis (FEA) software to perform efficient and accurate DaDT analysis of flawed 3D fastened connections and multi-body contact assemblies, including enhanced automeshing and SIF extraction techniques now available in StressCheck v12.0. In addition, several live demonstrations of technology will be performed for representative use cases.

In this 2-hour training course, we will focus on the following topics:

• StressCheck’s FEA technology implementation for the modeling, meshing and analysis of arbitrarily shaped 3D crack geometries, with and without the local effects of multi-body contact.
• Strategies for automatic meshing of 3D cracks with high-aspect ratio, 3D-solid pentahedral and hexahedral elements to support high-quality SIF extractions at any location on the crack front.
• New StressCheck v12.0 method to support multi-body contact assembly meshing, auto-detection of contact regions, and automatic assignment of contact pairs for 3D solid bodies.

The training course content will be based on concepts from the following resources, available on ESRD’s Resource Library and online documentation:

• ASIP 2018 Training – Modeling Fastened Connections: Hierarchic Approaches Discussion and Demo
• Helpful Hints and Tips: 3D Stiffened Lug Stress + Crack SIF Analyses
• Helpful Hints and Tips: Interference Fit Bushing + SIFs
• StressCheck Demo: Part-Thru Crack SIFs for Stiffened Lug
• StressCheck Tutorial: 3D Elliptical Part-Thru Crack with Multi-Body Contact
• StressCheck Tutorial: Filled vs Open Hole SIF Comparison for 3D Offset Hole

ESRD’s Technical Presentation

A 30-minute technical presentation titled “Experimental Validation of DTA Modeling of Bonded Wing Skin Repairs” and authored by Mr. Brian Lockwood (ESRD), Ms. Laura Pawlikowski (Warner Robins ALC) and Dr. Scott Prost-Domasky (AP/ES) will be presented by Brian Lockwood on Thursday, November 30th at 10:30 AM MST.

As the principal investigator on this USAF SBIR-funded project, Brian will be presenting an update to his work so far in utilizing StressCheck’s finite element analysis implementation to assess the effectiveness of bonded skin repairs on the C-130 center wing. The technical presentation description is as follows:

This presentation is a follow-up to ESRD’s 2022 ASIP presentation titled “DTA of Bonded Repairs on the Wing Skin of the C-130 Using Finite Elements.” That presentation explored a robust method for finite element analysis of bonded skin repairs from the perspective of both static strength and fatigue crack growth. The proposed analysis methodology was presented in a comparative sense, examining a number of criteria in the skin in an undamaged state, a damaged state and a repaired state, in order to allow the analyst to make an assessment of repair effectiveness without detailed knowledge of either the exact boundary conditions of the problem, or of the intricacies of the model itself. One of the criteria for a patch to be deemed effective is that the fatigue life of the skin be at or above that of the pristine configuration.

Given the sparse nature of research on the topic of crack growth under bonded repair patches, ESRD partnered with AP/ES to conduct an experimental program to investigate in detail how a small initial flaw propagates in the aluminum skin under a titanium repair up through failure. Experiments were performed alongside blind predictions of life and crack morphology using ESRD’s research tool, CPAT. Additionally, statistical analysis was performed to assess confidence in the predictions. Given the aleatory uncertainty associated with the available crack growth data for the specimen material, it was important that predictions of fatigue life be accompanied by a confidence level when comparing them with experimental outcomes. Because most of the crack propagation occurred under the repair, a marker band spectrum was used during the test and the crack-cycle data was constructed from fractographic examination. The experimental program covered three specimen configurations:

• Undamaged skin with a surface crack or a corner crack at a hole.
• Skin with a grindout (to remove hypothetical corrosion damage) and either a surface crack at the bottom of the grindout or a corner crack at a hole located at the center of the grindout.
• Same as previous configuration, but including a bonded titanium repair.

Experimental and predicted results will be presented.

ESRD’s Exhibit Booth

ESRD can be found at Booth 5 and will have several staff members available to chat, provide demonstrations, troubleshoot issues (StressCheck Clinic), and answer questions about our training course, our technical presentation, our software products and our composite repair solutions.

We’ll be handing out some fun giveaways at our booth! Stop by early to chat with us and grab one!

Participating ESRD Staff

Contact information for ESRD staff participating in ASIP Conference 2023 is as follows:

• Mr. Brent Lancaster – brent.lancaster@esrd.com
• Mr. Brian Lockwood – brian.lockwood@esrd.com
• Mr. Patrick Goulding – patrick.goulding@esrd.com

ESRD, Inc. will be exhibiting, presenting a technical paper (on DTA of bonded repairs) and providing a 2-hour training course in person and virtually at the ASIP Conference 2022 in Phoenix, AZ from November 28-December 1, 2022.  We hope you will drop by our technical presentation, training course and/or booth to check out the latest ESRD developments!

ESRD’s Training Course

A 2-hour training course titled “Best Practices for the Modeling & Analysis of Bonded Doubler Repairs” will be held Monday, November 28th from 10:00 AM – 12:00 PM local time by ESRD’s Brent Lancaster.  The course description is as follows:

Current methodologies for modeling and analysis of bonded repair patch designs for application to damaged sections of aircraft wing skin can be computationally expensive and difficult to implement in practice, relying instead on accumulated practical experience to determine the effectiveness of a given repair design. These methods, although effective, require a knowledge base acquired over many years of experience making sustainment organizations vulnerable to gaps in knowledge between newer members and more seasoned experts.

This training course will outline proposed methodologies, guidelines and best practices for utilizing ESRD’s StressCheck Professional finite element analysis (FEA) software to parametrically model, analyze and assess the effectiveness of composite or metallic bonded repair patch designs and variations. The effectiveness of repairs regarding static strength and damage tolerance will be addressed. In addition, strategies for efficient solution verification and hierarchic modeling approaches of 3D repair patches will be explored, and a set of representative demonstrations of technology will be provided.

In this 2-hour training course, we will focus on the following topics:

• StressCheck’s FEA technology implementation enabling modeling of very thin domains, including adhesive layers with 3D-solid elements.
• Best practices and guidelines for modeling and analyzing 3D bonded repair doubler variations (e.g. racetrack/rectangular, circular/elliptical, tapered, metallic, ply-by-ply, homogenized, etc.) for circular cutouts and grindouts.
• Performing “what if?” logic-driven studies of a digital 3D bonded repair handbook solution via StressCheck API-powered Engineering Simulation App, in which user-defined input data is passed from Python or Excel VBA to StressCheck Professional to perform scripted “on-the-fly” model adjustments and repair-oriented computations.

The training course content will be based on concepts from the following resources, available on ESRD’s Resource Library and online documentation:

• A System for Simulation Governance of Engineered Repairs of Composite Aircraft Structures
• Bonded Composite Repair Patch for Cracked Hole (Video)
• Laminated Composite Repair Patch Part I – Geometry & Meshing (Video)
• Laminated Composite Repair Patch Part II – Materials, BC’s & Results
• Laminated Composite Repair Patch Part III – Geometric Nonlinear Analysis

ESRD’s Technical Presentation

A 30-minute technical presentation titled “DTA of Bonded Repairs on the Wing Skin of the C-130 Using Finite Elements” and authored by Mr. Brian Lockwood (ESRD), Mr. Ryan Patterson (Warner Robins ALC) and Dr. Scott Prost-Domasky (AP/ES) will be presented by Brian Lockwood on Thursday, December 1st at 3:30 PM local time.

As the principal investigator on this USAF SBIR-funded project, Brian will be presenting his work so far utilizing StressCheck’s finite element analysis implementation to assess the effectiveness of bonded skin repairs on the C-130 center wing. The technical presentation description is as follows:

Current methodologies for the design and application of repairs to damaged sections of aircraft wing skin can be lacking in analytical support, relying instead on accumulated practical experience to determine the effectiveness of a given patch design. These methods are, by their nature, effective, being based on observation, but inefficient, requiring a knowledge base acquired over years of experience. This can make sustainment organizations inflexible and vulnerable to gaps in knowledge between newer members and more seasoned experts. This approach is also problematic in its potential for wasted effort and material, applying repairs that may be more intensive than is required for a given situation.

These problems can all be addressed by the introduction of an accessible, robust analysis methodology cast in the form of an Engineering Simulation Application for the verification of a repair’s performance qualities prior to an actual aircraft application. The finite element method is ideally suited to provide an analysis procedure for this type of problems that can be used by analysts with widely varying degrees of expertise both in numerical simulation and bonded repair application. This presentation will outline a proposed methodology for utilizing finite element analysis to assess the effectiveness of a given bonded repair.

ESRD’s Exhibit Booth

ESRD can be found at Booth 12 and will have several staff members available to chat, provide demonstrations, troubleshoot issues (StressCheck Clinic), and answer questions about our training course, our technical presentation, our software products and our composite repair solutions.

The StressCheck Clinic

StressCheck users may drop by our booth on a first-come, first-served basis to discuss any StressCheck-related questions, issues or feature requests with us. This includes troubleshooting customer models, demonstrating StressCheck features, and providing best practices/tips on how best to optimize StressCheck’s use.

Want to ensure ESRD’s booth staff is well-equipped to answer your StressCheck Clinic request? Click the below button, include “StressCheck Clinic Request” in the message subject, provide a brief explanation, and we will be prepared to discuss your request at our booth. Note: Customer membership level is required.

As a courtesy to other conference participants, we request that StressCheck Clinic visits be capped at 30 minutes.

Participating ESRD Staff

Contact information for ESRD staff participating in ASIP Conference 2022 is as follows:

• Mr. Brent Lancaster – brent.lancaster@esrd.com
• Mr. Brian Lockwood – brian.lockwood@esrd.com

SAINT LOUIS, MISSOURI – May 7, 2018

ESRD President and CEO Dr. Ricardo Actis

Finite element modeling originated in the aerospace industry over 60 years ago. Owing to the level of expertise and experience required, it has remained a practice of analysts. There are many reasons for this, among them getting the right mesh for a problem and getting the mesh right is always near the top of why it takes both an expert and much time to get a solution. Not to mention the expertise required to navigate the minefield of multi-purpose finite element software tools in selecting the “right” elements from an ever-expanding element library, and selecting the “right” value of tuning parameters to overcome various deficiencies in implementations.

Yet, looking at this more closely, the focus should not be the level of experience or modeling skills of the user, but the level of intelligence in the software. Nearly all of the most popular legacy FEA software products were designed to support the practice of finite element modeling and as such none of them have the capability to provide a simple Q/A dashboard to advise the non-expert user if they have a good solution.

Splice joint stress contours generated by ESRD’s Multi-Fastener Analysis Tool (MFAT) Sim App

How then can the vision for expanding the use of numerical simulation by persons who do not have expertise in finite element analysis (FEA) be safely realized? The solution lies in the establishment of Simulation Governance through the development and dissemination of expert-designed Engineering Simulation Apps to ensure the level of reliability and consistency needed for widespread adoption.

The Key Ingredient for FEA-Based Simulation Apps

FEA-based Simulation Apps for the standardization and automation of recurring analysis tasks and process workflows for use by persons who do not have expertise in FEA must be designed by expert analysts to fit into existing analysis processes, capturing institutional knowledge and best practices to produce consistent results by tested and approved analysis procedures. Only by meeting the technical requirements of Simulation Governance can simulation apps have the reliability and robustness needed to support engineering decision-making processes!

Simulation Governance must be understood as a managerial function that provides a framework for the exercise of command and control over all aspects of numerical simulation through the establishment of processes for the systematic improvement of the tools of engineering decision-making over time. This includes the proper formulation of idealizations, the selection and adoption of the best available simulation technology, the management of experimental data, verification of input data and verification of the numerical solution.

Establishing the Proper Framework

Double lap joint inputs for ESRD’s Single Fastener Analysis Tool (SFAT) Smart Sim App.

In the creation of FEA-based Simulation Apps for the application of established design rules, data verification and solution verification are essential. The goal is to ensure that the data are used properly and the numerical errors in the quantities of interest are reasonably small: they must have built-in safeguards to prevent use outside of the range of parameters for which they were designed; they must incorporate automatic procedures for solution verification; and must be deployed with a detailed description of all assumptions incorporated in the mathematical model and a clear definition of the range and scope of application.

To ensure their proper use, Simulation Apps must incorporate estimation of relative errors in the quantities of interest, an essential technical requirement of Simulation Governance. They should not be deployed without objective measures of the approximation errors for all the reported results. The success of the vision of Democratization of Simulation depends on it!

Learn More

Previous S.A.F.E.R. Simulation Posts…

• S.A.F.E.R. Numerical Simulation for Structural Analysis in the Aerospace Industry Part 1: Trends in A&D Driving Simulation
• S.A.F.E.R. Numerical Simulation for Structural Analysis in the Aerospace Industry Part 2: Challenges with Legacy FEA
• S.A.F.E.R. Numerical Simulation for Structural Analysis in the Aerospace Industry Part 3: FEM is not Numerical Simulation
• S.A.F.E.R. Numerical Simulation for Structural Analysis in the Aerospace Industry Part 4: Simulation Governance
• S.A.F.E.R. Numerical Simulation for Structural Analysis in the Aerospace Industry Part 5: An Introduction to StressCheck for High-Fidelity Aero-structure Analysis

To receive future S.A.F.E.R. Simulation posts…

This joint ESRD/Rev-Sim webinar will explore Sim-Gov compliant Sim Apps for democratization of simulation.

On July 29, 2019 a joint webinar on the the importance of Simulation Governance in FEA-based Sim App development & deployment, titled “Democratization of Simulation Governance-Compliant Sim Apps”, was provided by ESRD’s Brent Lancaster and Rev-Sim‘s Malcolm Panthaki.

In this timely webinar, we discussed why it is essential that Sim Apps implement Numerical Simulation technologies which enable the practice of Simulation Governance in order for the vision of democratization of simulations to be realized, as well as why it is important for engineering managers to get on the Simulation Governance train sooner rather than later. Strategies were explored for democratizing engineering simulations via Sim Apps which are: 1) based on the latest Numerical Simulation technologies, 2) available in Commercial Off the Shelf (COTS) form, and most importantly 3) Simulation Governance-compliant.

Live demos of ESRD’s CAE Handbook and Multi-Fastener Analysis Tool (MFAT) were provided in order to prove that COTS, FEA-based, Simulation Governance-compliant Sim Apps are not just “vaporwares” but plug-and-play software solutions!

View Webinar Recording

Click the button below to view the 4 part, 55-minute webinar recording (scroll to the bottom of the webinar landing page to find the videos):

View Recording

View Webinar Slides

Click the button below to view the webinar slides (PowerPoint Show):

View Slides

Acknowledgments

As always, many thanks to our attendees for their interest and feedback! And, of course, thanks to the Rev-Sim leadership for their time and contributions. We hope to collaborate on another webinar in the future!

SAINT LOUIS, MISSOURI – October 2, 2019

ESRD Chairman and Co-Founder Dr. Barna Szabó

The idea of simulation governance is easy to understand:  The application of numerical simulation technology must be properly governed in every organization. The responsibility for simulation governance rests with board-level executives.  They exercise this responsibility through setting the goals, objectives and metrics to ensure that the economic value of numerical simulation is positive.  If numerical simulation is not managed properly then it can and often does lead to poor decisions that result in economic loss.  There are many well-documented examples of substantial economic loss that can be attributed to lack of simulation governance and management.

Recognizing the need to clarify the issues associated with the governance and management of numerical simulation, the Simulation Governance and Management Working Group of NAFEMS[1] has undertaken to develop a document on “What is Simulation Governance and Management”. An extract was published in the July 2019 issue of the NAFEMS quarterly Benchmark.

Beware the bottlenecks preventing the adoption of simulation governance.

While the concept is easily grasped, the existence of two bottlenecks must be recognized:  The first is that board-level executives generally lack the expertise to properly formulate realistic policies, expectations and metrics for numerical simulation and to assess the economic risks associated with numerical simulation activities within their organization.  Therefore it is necessary to engage outside consultants who have proper credentials and experience.   The problem is that it is extremely difficult to find consultants who are competent in this area.  This is because there are very few experts in numerical simulation and the consultant must also understand the intricacies of corporate change management.

The second bottleneck is that, with very rare exceptions, the technical staff do not have a clear understanding of what numerical simulation is.  There are historical reasons for this:  The primary tool of numerical simulation is the finite element method.  The legacy finite element codes, whose origins can be traced to the 1960’s and 70’s, were not designed to support numerical simulation.  In fact, numerical simulation, as the term is understood today, did not yet exist at that time.

An essential aspect of numerical simulation is that mathematical models must be formulated independently from how the numerical solution is obtained.  In contrast, legacy finite element software tools have the model definition and approximation conflated in their element libraries, making it very difficult, at times impossible, to separate model form errors from numerical approximation errors.  As a consequence, solution verification and model validation, which are essential elements of numerical simulation, cannot be reliably performed.

To eliminate this bottleneck it will be necessary to re-train the technical staff so that they will become proficient in the use of quality assurance procedures in numerical simulation.

ESRD/Revolution in Simulation Webinar on Democratization of Simulation.

Management should also seek professional advice on the benefits and risks associated with Democratization of Simulation which must be subject to the rules of simulation governance.  The term means that numerical simulation tools are made available to engineers who do not have expertise in numerical simulation.  The goal is to increase productivity without sacrificing reliability through standardization of recurring numerical simulation tasks.  These tools must be carefully designed, tested and certified by experts for safe and efficient use.

The reasons why democratization tools should not be deployed without meeting the technical requirements of simulation governance are outlined in a 2018 presentation as well as in a joint webinar hosted by ESRD & Revolution in Simulation.

[1] NAFEMS is the International Association for the Engineering Modelling, Analysis and Simulation Community.  The parent organization was the National Agency for Finite Element Methods and Standards, established in the UK in 1983 with the objective to promote the safe and reliable use of finite element and related technology.

References

NASA Standard 7009: This NASA Technical Standard provides an approved set of requirements, recommendations, and criteria with which models and simulations (M&S) may be developed, accepted, and used in support of NASA activities.

Szabó B and Actis R. Simulation governance: Technical requirements for mechanical design. Computer Methods in Applied Mechanics and Engineering.  249-252, 158-168, 2012.

To receive future S.A.F.E.R. Simulation posts…

In case you missed it, ESRD is pleased to announce that we’ve released product updates for StressCheck Professional and StressCheck-Powered Apps (CAE Handbook and StressCheck Tool Box).  Many customer-defined enhancements were added, and the software user experience improved.

Figure 1: StressCheck’s default interface layout. A contour plot was produced in the Model View via the Results dialog.

StressCheck Professional v11 includes many new features, enhancements and improvements such as:

• Upgraded User Interface and User Flow Improvements
• Enhanced Automeshing Functionality
• New Crack Front Automeshing Method
• Automatic Extraction Radius for Fracture Mechanics Parameters
• Enhanced Solver Settings for Multi Body Contact Analysis
• New Extraction Functions for Multi Body Contact Results
• Full Online Documentation
• And more!

Watch the StressCheck v11 Demo

Watch this short video for a demonstration of some of the new features and enhancements in StressCheck Professional v11:

Learn More About StressCheck v11

Click below to view detailed descriptions of the new StressCheck Professional v11 features and enhancements:

Get the Latest Software Updates

To download the latest product updates and to view additional product release notes, click the links below:

• StressCheck Professional v11
• CAE Handbook v11/SCTB 5.0

In case you missed it, ESRD is pleased to announce that we’ve released product updates for StressCheck Professional and StressCheck-Powered Apps (CAE Handbook and StressCheck Tool Box).  Many customer-defined enhancements were added, and the software user experience improved.

StressCheck Professional v10.5

StressCheck Professional v10.5 includes many new features, enhancements and improvements such as:

• New Force/moment method
• New TLAP Cross section option
• TLAP Bearing and Bearing loads correction
• New Any Body option for Assignment
• Plastic Strain extractions
• Log Improvements for Incremental Solutions
• And more!

Watch this short video for a demonstration of some of the new features and enhancements in StressCheck Professional v10.5:

Click below to view detailed descriptions of the new StressCheck Professional v10.5 features and enhancements:

New Feature Details

Click below to view the full StressCheck Professional v10.5 release notes:

Product Release Notes

Get the Latest Software Updates

To download the latest product updates and to view additional product release notes, click the links below:

• StressCheck Professional v10.5
• CAE Handbook v10.5/SCTB 4.5

ESRD is pleased to announce that we’ve released product updates for StressCheck Professional and StressCheck-Powered Apps (CAE Handbook and StressCheck Tool Box).  Many customer-defined enhancements were added, and the software user experience improved.

StressCheck Professional v10.4

StressCheck Professional v10.4 includes many new features, enhancements and improvements such as:

• Direct Force Option for Traction Loads
• Individual Load Record Checking
• New TLAP-Bearing Option (Ignore Moments & Offsets)
• Improved Local System Extractions
• Tabbed Dialogue Persistence

Watch this short video for a demonstration of some of the new features and enhancements in StressCheck Professional v10.4:

Click below to view the full StressCheck Professional v10.4 release notes:

Release Notes

Get the Latest Software Updates

To download the latest product updates and to view additional product release notes, click the links below:

• StressCheck Professional v10.4
• CAE Handbook v10.4/SCTB 4.4

ESRD, Inc. will be exhibiting and providing a training course at the ASIP Conference 2019 in San Antonio, TX from December 2-5, 2019.  We hope you will drop by our training course and booth to check out the latest!

ESRD’s Training Course

The training course titled “Automated 3-D Crack Beta Curve Development via Smart Sim Apps” will be held Monday, December 2, 2019 / 6:00 PM – 8:00 PM by Mr. Brent Lancaster.  The description is as follows:

In the past, fatigue crack growth in 3D was typically analyzed with a compounding (or superposition) of beta factors to represent various configurations and loadings for complex components. While compounding approaches can be simulated quickly, many of the beta factors used for DaDT simulations were derived from analytical or empirical models of much simpler configurations, which may not be representative of the 3D case at hand. Thus, a risk of the “unknown” is introduced into the simulation, endangering the ability of DaDT analysts to provide a justifiable assessment of 3D fatigue crack life. To mitigate this risk, recently the numerical simulation community initiated the development of engineering simulation applications, or Sim Apps, to automate parametric finite element analyses (FEA) of complex crack components such that the practice of compounding beta factors could be replaced with fully representative beta factors.

Example Smart Sim App for Automated Computation of Multi-Phase Beta Factors (with Built-In Solution Verification)

This short training course will discuss the creation of Sim Apps for the automatic generation of complex, solution-verified 2D and 3D beta factors via the integration of StressCheck’s parametric FEA engine, the Windows Component Object Model (COM) and Microsoft Excel VBA. This SAFER Simulation approach reduces the error-prone superposition of stress intensity factors (SIF’s) to represent complex beta factors.

Course Outline:

• Overview of fracture mechanics parameters for fatigue crack growth: SIF’s, J-integrals and beta factors.
• Pros and cons of compounding beta factors: what are the risks?
• What is a Sim App, and how can they help DaDT engineers produce more accurate analyses?
• Case studies in Sim Apps for the automation of 2D and 3D beta factor generation
• Live Sim App Demo: automated beta curve generation via an Excel VBA + StressCheck-based Sim App
• Q&A

The training course content will be based on concepts from the following resources, available on ESRD’s Resource Library:

• Automated Beta Curve Development Using Parametric FEA
• StressCheck Demo: Sim App Development via Excel VBA and StressCheck API
• Fracture Mechanics Sim Apps: Sample Visual Basic Application
• Crack Propagation Analysis Tool for 3D Crack Simulation: A Simulation App Case Study
• Deployment of Smart Simulation Apps in Support of DaDT Activities
• 3D Crack Growth Simulation: Advancements & Applications Webinar
• Democratization of Simulation Governance-Compliant Sim Apps Webinar

Register

ESRD’s Exhibit Booth

ESRD’s Brent Lancaster chats with ASIP 2018 attendees.

ESRD can be found at Booth 25 and will have several staff members available to chat and answer questions about our software products and DaDT solutions.

Introducing the StressCheck Clinic

We will also be introducing the StressCheck Clinic at ASIP Conference 2019, where StressCheck users may drop by our exhibit booth (at a communicated time or on a first-come, first-served basis) to discuss any questions, issues or feature requests with a qualified ESRD representative. Stay tuned more more details on this new offering!

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Participating ESRD Staff

Contact information for ESRD staff participating in ASIP Conference 2019 is as follows:

• Mr. Gordon Lehman, PE – gordon.lehman@esrd.com
• Mr. Brent Lancaster – brent.lancaster@esrd.com

ESRD is hosting joint webinars on July 17th and July 29th, both at 1:00 pm EST.

Want to learn from the experts in FEA-based Simulation Application (Sim App) development for standardization & automation of complex engineering analysis tasks, such as 3D fatigue crack growth, 3D ply-by-ply laminated composite analysis or other challenging applications you’d like to safely put into the hands of non-experts?

This July, ESRD will be partnering with several industry leaders to provide not one but TWO stimulating webinars on the latest in FEA-based Sim App development.

The Latest Developments in Sim Apps for 3D Crack Growth Simulations

BAMF Example Crack Front Estimate via StressCheck/AFGROW Integration (courtesy Hill Engineering).

First, ESRD is pleased to join Hill Engineering, LLC (developers of BAMF) and LexTech, Inc. (developers of AFGROW) for a joint webinar on Wednesday July 17, 2019 @ 1:00 pm EST. This collaborative webinar will be titled “3D Crack Growth Simulation: Advancements & Applications“, and will detail the latest technological advancements in Sim Apps for accurate simulation of three-dimensional metallic crack growth via coupled finite element analysis (FEA) and fatigue life computations.

During this webinar, you will see the latest in 3D crack growth predictions via Hill Engineering’s Broad Application for Modeling Failure (BAMF) Sim App, which provides a robust integration between StressCheck’s high-fidelity DaDT/fracture solutions and AFGROW’s crack growth life prediction capabilities.

Additionally, ESRD, LexTech & Hill Engineering representatives will explain how each of their respective technologies seamlessly fit together to enable automated, verified & validated (i.e. backed by experimental data) fatigue crack propagation.

Register Now

The Importance of Simulation Governance in Sim App Development & Deployment

This joint ESRD/Rev-Sim webinar will explore Sim-Gov compliant Sim Apps for democratization of simulation.

Then, on Monday July 29, 2019 @ 1:00 pm EST, ESRD will join the thought leaders at Revolution in Simulation (Rev-Sim) for a joint webinar on why Simulation Governance compliance is essential to the development & deployment of Sim Apps titled “Democratization of Simulation Governance-Compliant Sim Apps“.

In this timely webinar, we will discuss why it is essential that Sim Apps implement Numerical Simulation technologies which enable the practice of Simulation Governance in order for the vision of democratization of simulations to be realized, as well as why it is important for engineering managers to get on the Simulation Governance train sooner rather than later. Strategies will be explored for democratizing engineering simulations via Sim Apps which are: 1) based on the latest Numerical Simulation technologies, 2) available in Commercial Off the Shelf (COTS) form, and most importantly 3) Simulation Governance-compliant.

Register Now

More ESRD Webinars…

Interested in the complete ESRD webinar listing, including on-demand recordings from past ESRD webinars? Visit our webinars page here:

View Webinar Listing