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ESRDESRD
  • About
    • Who We Are
    • Partners & Providers
    • News & Events
    • The ESRD Blog
    • Careers
    • Contact Us
  • Applications
    • What We Solve
    • Detailed Stress
    • Composites
    • Fracture Mechanics
    • Residual Stress
    • Sim Apps
  • Products
    • What We Develop
    • StressCheck Professional
      • StressCheck Core
      • Solvers
      • Advanced Modules
      • Utilities
      • Academic Licensing
    • StressCheck Apps
      • CAE Handbook
      • StressCheck Tool Box
    • Product Updates
  • Support
    • How We Can Help
    • Training
    • Webinars
    • Quick Start Guide
    • Help Documentation
    • Software FAQ’s
  • Simulation
    • How We Simulate
    • Benchmarks
    • Simulation Governance
    • History of FEA
    • Dictionary & Terms
  • Resources
    • Browse Our Resource Library
    • White Papers
    • Case Studies
    • Product Demos
    • StressCheck Tutorials

Engineering Software Research & Development

Explore Further ESRD's latest release of our flagship FEA software delivers impressive new features such as unplotted transparency mode, an interactive navigation cube, mode III stress intensity factor support and a redesigned graphing utility. StressCheck Professional v12.1 Learn More ESRD has been helping aerospace and defense (A&D) engineering professionals solve the toughest problems in strength, durability and damage tolerance of metallic and composite structures since 1989. Applications Learn More ESRD develops advanced FEA-based, Simulation Governance-compliant software solutions for challenging engineering applications requiring the highest level of fidelity and quality assurance. Products Learn More ESRD offers award-winning software support, hands-on training, expert consulting and sophisticated application development services for a wide range of engineering analysis needs. Support Learn More Our simulation technology is based on the hp-version of the finite element method, and is mathematically proven to converge to the exact solution faster than traditional FEA implementations. Simulation Learn More ESRD's Resource Library contains an expansive selection of technical presentations, white papers, video tutorials/demos, case studies, product downloads, webinars, best practices and more. Resource Library

News & Events

Trustworthiness in Simulation: Credibility or Decision-grade Reliability?

Compliance with ASME and NASA standards on verification, validation, and uncertainty quantification (VVUQ) is often taken as sufficient evidence that simulation results can be trusted. This is a mistake, however. Compliance alone does not answer the question that truly matters to decision-makers: Are the predictions reliable enough for the decision at hand?

Beyond the Black Box: Explainable AI Requires Explainable Simulation

AI is rapidly transforming engineering workflows. However, a fundamentally important issue rarely gets discussed: AI explanations are only as trustworthy as the simulations they rely on. This blog post explores the rigorous technical requirements that must be met to ensure that numerical simulations provide the transparent, machine-interpretable evidence that explainable AI demands.

Turtle Shells and Legacy Finite Element Codes: Evolutionary Constraints in the Age of Explainable AI

This blog post explains why legacy finite element codes are like a turtle’s carapace: a protective structure that provided a survival advantage in the resource-scarce 1960s but now impedes the flexibility needed to meet the demands of explainable AI (XAI). The good news is that the technology required to support XAI already exists.

Learn More Engineering Software Research and Development, Inc. (ESRD) is a Missouri Corporation founded in 1989 by Dr. Barna Szabo, Mr. Kent Myers, and Dr. Ivo Babuska. ESRD is engaged in the development of advanced engineering software products and offers professional services in this area. ESRD’s flagship software product is StressCheck, an advanced FEA tool based on the p-version finite element method. Who Is ESRD? Learn More In StressCheck® the modeling errors are treated separately from the errors of approximation so that the analyst can validate the model and verify the result independently. Other FEA programs typically have hundreds of elements where StressCheck® would have just one. To us a quadrilateral is a quadrilateral; why would you need more than one? StressCheck® treats the attributes of the element separately from the topology of the element unlike any other code. Switching between heat transfer and elasticity, for example, does not require changing elements or remeshing. That’s hierarchic modeling. Smart Hierarchic Models.
Dynamic Results Mining.
Solution Verification.
Learn More Numerical simulation is made possible by implementing the requirements of Simulation Governance. Simulation Governance controls and standardizes the simulation process much like Corporate Governance controls and standardizes the functioning of a corporation. The yardstick that measures successful implementation of Simulation Governance is validation of the model and verification of the solution. ESRD's StressCheck is the first FEA-based software product to meet these requirements and unlock reliable democratization of simulation. Numerical Simulation.
Simulation Governance.
Democratization.

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Testimonials

“The addition of incremental theory of plasticity in StressCheck has greatly improved our ability to accurately predict the fatigue life of joints with interference fit fasteners and cold worked holes. This ability is especially important, not only in support of maintaining aging aircraft but also in analyzing some of the new cold working techniques that have been introduced in recent years.
Prior to this implementation, analysts often relied on closed-form approximations or simple factors that were often overly conservative and sometimes even unconservative when used in life prediction. Now, not only can we more accurately predict residual stresses in these complex structural joints, but we can also do so in a timely manner given the modeling and analysis efficiency that exists with a p-version FEA code such as StressCheck.”

F-15 Structures Manager, The Boeing Company

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