Yousef Navidtehrania, Covadonga Betegóna
We present a novel, generalised formulation to treat coupled structural integrity problems by combining phase field and multi-physics modelling. The approach exploits the versatility of the heat transfer equation and is therefore well suited to be adopted in commercial finite element packages, requiring only integration point-level implementation. This aspect is demonstrated here by implementing coupled, multi-variable phenomena through simple UMAT and UMATHT subroutines in the finite element package Abaqus. The generalised theoretical and computational framework presented is particularised to four problems of engineering and scientific relevance: thermo-mechanical fracture, hydraulic fracture, hydrogen-assisted cracking and metallic corrosion. 2D and 3D problems are considered. The results reveal a very good agreement with experimental data, and existing numerical and analytical solutions. The user subroutines developed are made freely available at https://mechmat.web.ox.ac.uk/codes.
@article{8a5dbc06-0f34-425a-a601-5809eab390ec,
title={2025 Navidtehrani Multiphysics Phase Field Fracture},
author={Yousef Navidtehrania and Covadonga Betegóna},
year={2026},
language={en}
}TY - JOUR TI - 2025 Navidtehrani Multiphysics Phase Field Fracture AU - Yousef Navidtehrania AU - Covadonga Betegóna PY - 2026 LA - en ER -
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