Resource Library | ESRD | Engineering Software Research and Development, Inc. https://www.esrd.com/resource-library/ Engineering Software Research and Development, Inc. Thu, 12 Sep 2024 15:19:35 +0000 en-US hourly 1 https://wordpress.org/?v=6.6.2 https://www.esrd.com/wp-content/uploads/cropped-SC_mark_LG72ppi-32x32.jpg Resource Library | ESRD | Engineering Software Research and Development, Inc. https://www.esrd.com/resource-library/ 32 32 StressCheck Tutorial: New Assembly Meshing/Auto Contact Features in StressCheck v12.0 https://www.esrd.com/resource-library/product/stresscheck-tutorial-new-assembly-meshing-auto-contact-features-in-stresscheck-v12-0/ Wed, 11 Sep 2024 20:11:43 +0000 https://www.esrd.com/?post_type=product&p=32645 A new and powerful assembly automeshing/automatic contact detection feature is now available with the release of StressCheck v12.0. Before automeshing an assembly of close-contacting solid bodies, users may enable the "Assembly Meshing" option to enforce element face matching between neighboring surfaces (to within a user-specified tolerance). Once the solid bodies have been automeshed, StressCheck will automatically create contact zones between matched neighboring element faces and assign contact pairs via the new Auto Contact constraint method to the current constraint ID (if existing, otherwise StressCheck will use "AUTO_CONT" as the constraint ID). Individual contact pairs generated via the Auto Contact method may specified as Contact (the default, traditional multi-body contact), Fused (if element face matching was 100% successful, matched element faces are bonded) or Free (matched element faces are free). Note that if individual contact pairs are specified as Contact, and a parameter is not used for the Contact Constant, the Contact Constant value is computed from the assigned material property data and will be updated if one or more of the material properties are modified. This tutorial revisits a previous 3D multi-body contact example and utilizes assembly automeshing/automatic contact detection to significantly reduce the amount of setup time for multi-body contact analysis. The tutorial also demonstrates how refining the automesh (or updating a parameter value which triggers a re-mesh) will result in the re-generation of the contact zones/contact pairs.]]>
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]]> StressCheck Tutorial: New Mesh Seeding Features in StressCheck v12.0 https://www.esrd.com/resource-library/product/stresscheck-tutorial-new-mesh-seeding-features-in-stresscheck-v12-0/ Wed, 11 Sep 2024 19:41:16 +0000 https://www.esrd.com/?post_type=product&p=32641 A new and powerful mesh seeding feature is now available with the release of StressCheck v12.0. Before automeshing a solid body, users may associate manually generated nodes and/or manually meshed elements with that solid body. During the automeshing process, these nodes and/or elements will be incorporated in the resulting mesh. If users require refinement of the seeded mesh, h-Discretization methods are supported. Note that the automesh must be re-generated after h-Discretizing the seeded mesh. This tutorial revisits the example from the Getting Started Guide and utilizes seeded hand-meshed elements in the region of interest. The hand-meshed elements are then h-Discretized and the automesh is updated.]]>
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]]> StressCheck Demo: StressCheck v12.0 Feature Showcase https://www.esrd.com/resource-library/product/stresscheck-demo-stresscheck-v12-0-feature-showcase/ Mon, 26 Aug 2024 13:45:33 +0000 https://www.esrd.com/?post_type=product&p=32513 View the following 10-video showcase for notable features and enhancements available in StressCheck Professional v12.0. For a full list of new features and enhancements, view the StressCheck Professional v12.0 release notes on our product updates page here. Note: to view the video showcase, enter password "pelement" (no quotes). Also, while no audio is currently present in the demo videos, the videos are annotated with informative descriptions.]]>

Select a showcase video from the dropdown in the top left video showcase control and then hit the play button to view the selected showcase video. You may maximize the video player to fit your screen.

]]> FlexNet v11.19.5 License Administration Guide https://www.esrd.com/resource-library/product/flexnet-v11-19-5-license-administration-guide/ Fri, 16 Aug 2024 20:48:00 +0000 https://www.esrd.com/?post_type=product&p=32236 FlexNet Publisher 2023 R3 (v11.19.5) License Administration Guide.]]>
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]]> FlexNet v11.19.5 License Manager https://www.esrd.com/resource-library/product/flexnet-v11-19-5-license-manager/ Fri, 16 Aug 2024 20:04:10 +0000 https://www.esrd.com/?post_type=product&p=32230 For StressCheck v12.0, FlexNet v11.19.5 is required to serve ESRD software floating licenses. Follow the instructions here and in the FlexNet v11.19.5 documentation to install and configure your license server properly for StressCheck v12.0.]]>
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]]> StressCheck Demo: What’s New in StressCheck v12.0 https://www.esrd.com/resource-library/product/stresscheck-demo-whats-new-in-stresscheck-v12-0/ Fri, 16 Aug 2024 20:00:25 +0000 https://www.esrd.com/?post_type=product&p=32229 Watch the below video for a brief demonstration of the latest features and enhancements available in StressCheck Professional v12.0. Want more information?
  • View StressCheck Professional v12.0 release notes on our product updates page here.
  • Download StressCheck Professional v12.0 here.
  Note: Software Downloader access is required to download ESRD software products.]]>

Hit the play button to view this video. You may maximize the video to fit your screen.

]]> StressCheck Professional Toolbar Guide https://www.esrd.com/resource-library/product/stresscheck-professional-toolbar-guide/ Fri, 16 Aug 2024 19:57:10 +0000 https://www.esrd.com/?post_type=product&p=32228 Download the latest StressCheck® Professional Toolbar Guide documentation.]]>
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]]> Experimental Validation of DTA Modeling of Bonded Wing Skin Repairs https://www.esrd.com/resource-library/product/experimental-validation-of-dta-modeling-of-bonded-wing-skin-repairs/ Thu, 07 Dec 2023 16:41:37 +0000 https://www.esrd.com/?post_type=product&p=30469 Abstract: 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: (1) Undamaged skin with a surface crack or a corner crack at a hole; (2) 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; (3) Same as configuration (2) but including a bonded titanium repair. Experimental and predicted results will be presented. Originally presented as a technical paper at the 2023 ASIP conference in Denver, CO.]]>
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]]> ASIP 2023 Training – Enhancements in StressCheck v12.0 for DaDT Analysis of 3D Fastened Connections https://www.esrd.com/resource-library/product/asip-2023-training-enhancements-in-stresscheck-v12-0-for-dadt-analysis-of-3d-fastened-connections/ Thu, 07 Dec 2023 15:55:57 +0000 https://www.esrd.com/?post_type=product&p=30457 Abstract: this 2-hour training course, originally presented at the ASIP 2023 conference in Denver, CO, explored 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 12.0 method to support multi-body contact assembly meshing, auto-detection of contact regions, and automatic assignment of contact pairs for 3D solid bodies.
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]]> StressCheck Tutorial: Toolbars and Selectors Overview https://www.esrd.com/resource-library/product/stresscheck-tutorial-toolbars-and-selectors-overview/ Thu, 22 Jun 2023 14:54:00 +0000 https://www.esrd.com/?post_type=product&p=28417 Abstract: overviews of the Main toolbar, Display Attributes toolbar, Reference/Theory/Units and Parts selectors, Display Options toolbar, Views toolbar, Display Objects toolbar and Edit toolbar are provided.]]>
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