Fiber Weave Representative Volume Element (RVE) Sim App
Abstract: A Sim App concept for a fiber weave representative volume element (RVE) model is presented. By utilizing the parameter-controlled StressCheck Handbook model, equivalent orthotropic lamina (ply) properties can be developed (either by hand or automatically via the StressCheck API) using a heterogeneous elastic material-based homogenization technique.
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The software provides a highly reliable and user-friendly production stress analysis tool that will replace the Finite Element Method (FEM) tools and failure criteria the experts currently employ for analyzing bonded joints. The software includes an FEM-based handbook format, which allows non-experts to utilize models prepared by specialists. The handbook problems include built-in failure criteria, geometric and material nonlinearities, and the modern FEM technology provides better error control and the treatment of very large aspect ratios.”
Dr. Stephen P. EngelstadTechnical Fellow, Lockheed Martin Aeronautics Company, Structural Methods and Analysis