Geometry Archives - ESRD https://www.esrd.com/product-tag/geometry/ Engineering Software Research and Development, Inc. Thu, 22 Jun 2023 15:48:10 +0000 en-US hourly 1 https://wordpress.org/?v=6.7.2 https://www.esrd.com/wp-content/uploads/cropped-SC_mark_LG72ppi-32x32.jpg Geometry Archives - ESRD https://www.esrd.com/product-tag/geometry/ 32 32 StressCheck Demo: 2D Splice Joint Case Study https://www.esrd.com/resource-library/product/stresscheck-demo-2d-splice-joint-case-study/ Fri, 02 Jun 2023 16:15:21 +0000 https://www.esrd.com/?post_type=product&p=28320 Abstract: demonstration of how to quickly setup and analyze a 2D splice joint configuration using quads, tris, fasteners and links. Additionally, the influence of the link shear stiffness (Ks) on the splice joint stresses and fastener reactions will be assessed.]]>

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]]> Webinar: Benefits of Mixed Meshing for Multi-Body Contact Applications https://www.esrd.com/resource-library/product/webinar-benefits-of-mixed-meshing-for-multi-body-contact-applications/ Mon, 13 Mar 2023 20:42:18 +0000 https://www.esrd.com/?post_type=product&p=27441 [vc_row][vc_column width="1/2"][vc_message message_box_color="peacoc" icon_fontawesome="fa fa-lightbulb-o"]March 13, 2023 @ 1:00 pm EST[/vc_message][vc_column_text]Strategies for incorporating advanced mixed (hexa/penta) automeshing techniques for improved quality and efficiency of 3D multi-body contact applications will be explored.[/vc_column_text][vc_cta h2="" add_button="right" btn_title="WATCH NOW" btn_color="danger" btn_link="url:%23recording|||"]This webinar is now available to watch on-demand.[/vc_cta][/vc_column][vc_column width="1/2"] [caption id="attachment_27442" align="alignnone" width="1166"] 3D Splice Plate problem definition (top right), mixed mesh taking advantage of symmetry (top left) and plate von Mises stresses (bottom).[/caption] [/vc_column][/vc_row][vc_row][vc_column][vc_column_text]

WEBINAR SUMMARY

[/vc_column_text][vc_custom_heading text="In this 3-part, pre-recorded 40-minute webinar we will present how the automeshing enhancements now available in StressCheck v11.1 significantly aid in the rapid generation of penta- and hexa-dominant meshes for use in 3D multi-body contact applications. To realize these concepts in a practical setting, a 3D splice joint assembly will be constructed, analyzed and post-processed, with detailed commentary on each step in the workflow process." font_container="tag:p|text_align:left" use_theme_fonts="yes"][/vc_column][/vc_row][vc_row][vc_column][vc_column_text]

WEBINAR HIGHLIGHTS

[/vc_column_text][vc_column_text]Part 1: Model Definition & Parametric Geometry Construction
  • Problem definition, scope and use of symmetry to reduce model size
  • Importation of a parameter file (.par)
  • Construction of 3D parametric solid bodies (boxes, cylinders, cones, etc.)
  • Boolean union/subtraction operations between 3D solid bodies to define 3D splice joint parts
  • Copy operations to duplicate child fastener bodies from a single parent fastener body
  • Body-to-body imprints between all parts for optimization of contacting surfaces
  Part 2: Part Definition, Contact Zone Setup, Mixed Mesh Generation, Material Properties & Boundary Conditions
  • Creation of Parts for efficient bookkeeping and visualization
  • Generation of the solid mixed meshes for each Part via Global, Boundary Layer and Thin Section automesh methods
  • Creation of contact zones for Part regions expected to be in contact
  • Definition and assignment of material properties to each Part
  • Assignment of boundary conditions (loads and constraints) to each Part
  • Assignment of contact pairs to allow gap and pressure computations between Part contact zones
  Part 3: Solution Setup, Execution and Post-Processing
  • Linear multi-body contact solution setup and initiating the solver
  • Evaluation of max contact pressure error, solve time and degrees of freedom solved (DOF)
  • Plotting the deformation of the 3D splice joint assembly
  • Plotting of von Mises stresses for each Part in the 3D splice joint assembly
  • Unaveraged vs. averaged von Mises stresses for each plate Part
  • Computing the stress resultants to ensure quality load transfer between Parts
  • Summary and wrap-up
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]]> ASIP 2022 Training – Best Practices for the Modeling and Analysis of Bonded Doubler Repairs https://www.esrd.com/resource-library/product/asip-2022-training-best-practices-for-the-modeling-and-analysis-of-bonded-doubler-repairs/ Mon, 05 Dec 2022 15:01:02 +0000 https://www.esrd.com/?post_type=product&p=26512 Abstract: this 2-hour training course, originally presented at the ASIP 2022 conference in Phoenix, AZ, explored 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.
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]]> StressCheck Tutorial: Parametric Solid Modeling of a 3D Bracket https://www.esrd.com/resource-library/product/stresscheck-tutorial-parametric-solid-modeling-of-a-3d-bracket/ Fri, 02 Sep 2022 13:42:42 +0000 https://www.esrd.com/?post_type=product&p=25999 Abstract: parametric solid modeling steps for the construction of a 3D bracket geometry are demonstrated. These operations include various Boolean, blend, clip and chamfer operations.]]>

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]]> StressCheck Tutorial: Computing Part-Thru Crack SIF’s from Geometric Nonlinear Solutions https://www.esrd.com/resource-library/product/stresscheck-tutorial-computing-part-thru-crack-sifs-from-geometric-nonlinear-solutions/ Tue, 23 Aug 2022 14:12:00 +0000 https://www.esrd.com/?post_type=product&p=25914 Abstract: comparison between linear and geometric nonlinear stress intensity factor (SIF) extractions for a fitting section with a part-thru corner crack at a bearing-loaded hole. Note: solving a geometric nonlinear analysis results in normal springs being released in tension (compression-only).]]>
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]]> StressCheck Tutorial: Modeling a Cracked Plate in a 2D Fastened Connection https://www.esrd.com/resource-library/product/stresscheck-tutorial-modeling-a-cracked-plate-in-a-2d-fastened-connection/ Wed, 13 Jul 2022 20:05:20 +0000 https://www.esrd.com/?post_type=product&p=25515 Abstract: setting up a 2D fastened connection analysis (fasteners/links/planar elements) for two plates, with the upper plate having a parametric thru-crack at its middle hole. Solving linear and general nonlinear analyses to activate the fastener elements, followed by extracting SIF's at the crack tip.]]>
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]]> StressCheck Tutorial: Filled vs Open Hole SIF Comparison for 3D Offset Hole https://www.esrd.com/resource-library/product/stresscheck-tutorial-filled-vs-open-hole-sif-comparison-for-3d-offset-hole/ Tue, 16 Nov 2021 16:38:35 +0000 https://www.esrd.com/?post_type=product&p=23280 Abstract: comparison of 3D part-thru crack stress intensity factor (SIF) distributions for filled (pin-propped) vs open (bearing-loaded) offset holes. Simultaneous solution and extractions based on Parts and Solution Configurations.]]>
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]]> StressCheck Tutorial: Using Cutting Planes for Model Viewing and Live Results Processing https://www.esrd.com/resource-library/product/stresscheck-tutorial-using-cutting-planes-for-model-viewing-and-live-results-processing/ Thu, 21 Oct 2021 15:05:14 +0000 https://www.esrd.com/?post_type=product&p=22844 Abstract: the Cutting Plane feature is helpful for viewing arbitrary cross sections of geometry/mesh and fringe plots of results. Cutting planes may be oriented in the Global or a Local system, and multiple cutting planes may be simultaneously active.]]>
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]]> Helpful Hints and Tips: Advanced StressCheck Automation – Model Editing & Updating (Python) https://www.esrd.com/resource-library/product/helpful-hints-and-tips-advanced-stresscheck-automation-model-editing-updating-python/ Mon, 30 Aug 2021 19:18:04 +0000 https://www.esrd.com/?post_type=product&p=22359 Abstract: Python script and output files associated with the exercise found in Advanced StressCheck Automation: Model Editing & Updating.]]>
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]]> Helpful Hints and Tips: Advanced StressCheck Automation – Model Editing & Updating (Excel VBA) https://www.esrd.com/resource-library/product/helpful-hints-and-tips-advanced-stresscheck-automation-model-editing-updating-excel-vba/ Mon, 30 Aug 2021 19:08:41 +0000 https://www.esrd.com/?post_type=product&p=22354 Abstract: Excel VBA script and output files associated with the exercise found in Advanced StressCheck Automation: Model Editing & Updating.]]>
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