ExaCMech: GPU-Native Crystal Plasticity Constitutive Library

Tue, 15 Apr 2025 00:00:00 +0000

The Problem ExaCMech Solves
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Crystal plasticity finite element codes spend a large fraction of their time doing one thing: the constitutive update. Given a material’s current state (its crystal orientation, internal hardening variables, elastic strain) and a prescribed deformation over a time step, compute the resulting stress and update the material state. This has to be done at every quadrature point in the mesh, which in a production micromechanics simulation means evaluating physically complex, iterative nonlinear equations simultaneously at tens of millions of points. For the problem to be tractable at scale, those evaluations need to run on the GPU, and the models need to be structured in a way that maps naturally to how GPUs actually execute work.

Constitutive-Models on Robert Carson

ExaCMech: GPU-Native Crystal Plasticity Constitutive Library

The Problem ExaCMech Solves #

The Problem ExaCMech Solves
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