Code Verification for Elastostatic Solid Mechanics and Pseudoelasticity:

An Example of Rigorous Code Verification for a Commercial Finite Element Software

Overview

Despite its recognition as the gold-standard for code verification of physics-based computational modeling, examples of method of manufactured solutions (MMS) code verification applied to solid mechanics are rare in the literature, especially for commercial software and non-trivial, large-deformation analyses involving nonlinear materials. We summarize our approach to performing MMS code verification of a commercial finite element code for common elastostatic problems relevant to many industries including medical devices. Additionally, because MMS requires a closed-form representation of the governing equations, we demonstrate an alternative but related approach known as the method of exact solutions (MES) for code verification of a path-dependent constitutive model commonly used to simulate the pseudoelastic behavior of nickel titanium alloys.

Generation of source terms for the MMS verification will be shown using Python/SymPy in a live demo during the presentation.

Webinar Presentation (pdf)

Webinar Recording (WebEx)

Note: The presentation and recording are only available to NAFEMS members.

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