Work

UMAT4COMSOL: An Abaqus user material (UMAT) subroutine wrapper for COMSOL

Year: 2024

Type: article

Abstract: We present a wrapper that allows Abaqus user material subroutines (UMATs) to be used as an External Material library in the software COMSOL Multiphysics. The wrapper, written in C language, transforms COMSOL’s external material subroutine inputs and outputs into Fortran-coded Abaqus UMAT inputs and outputs, by means of a consistent variable transformation. This significantly facilitates conducting coupled, multi-physics studies employing the advanced material models that the solid mechanics community has developed over the past decades. We exemplify the potential of our new framework, UMAT4COMSOL, by conducting numerical experiments in the areas of elastoplasticity, hyperelasticity and crystal plasticity. The source code, detailed documentation and example tutorials are made freely available to download at www.empaneda.com/codes.

Source: Advances in Engineering Software

DOI: 10.1016/j.advengsoft.2024.103610

Authors: Sergio Lucarini, Emilio Martínez-Pañeda

Institutions: Ikerbasque, Basque Center for Materials, Applications and Nanostructures, Imperial College London, University of Oxford

Language: English

Topic: Advanced Numerical Methods in Computational Mathematics

Subfield: Computational Mechanics

Field: Engineering

Domain: Physical Sciences

Open Access status: hybrid

Estimated APC paid: $3,980