Complas 2025

COMPLAS 2025

Keynote

Emergent Distortion in a Smooth Multisurface Model

Marek, René (Institute of Thermomechanics of the CAS)
Parma, Slavomír (Institute of Thermomechanics of the CAS)

In session: 203 - Investigation on the distortional hardening/softening in metals, polymers, biological materials, and other materials

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The present study employs a multisurface model whose stress response under uniaxial loading is analytically solvable and represented by a piecewise-defined function composed of exponential segments with C(1) continuity. The model undergoes various tests, including the generation of ratcheting rate maps, the assessment of methods to amplify the apparent distortion of the field of equivalent plastic strain, and the evaluation of the numerical accuracy of its implementation.