A user material interface for the Peridynamic Peridigm framework

User materials (UMAT) in finite element codes allow the researchers or engineers to apply their own material routines. Simple software interfaces are specified to represent the material behavior in software. In order to use these already existing and often validated models to Peridynamics a UMAT int...

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Bibliographic Details
Published in:SoftwareX 2023-02, Vol.21, p.101322, Article 101322
Main Authors: Willberg, Christian, Hesse, Jan-Timo, Garbade, Marc, Rädel, Martin, Heinecke, Falk, Schuster, Andreas, Pernatii, Anna
Format: Article
Language:English
Subjects:
Damage model
Interface
Material modeling
Peridynamics
UMAT
User material
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Description
Summary:User materials (UMAT) in finite element codes allow the researchers or engineers to apply their own material routines. Simple software interfaces are specified to represent the material behavior in software. In order to use these already existing and often validated models to Peridynamics a UMAT interface is presented. It allows the simplified use of already existing material routines in the peridynamic framework Peridigm. The interface is based on the Abaqus UMAT definition and allows the integration of Fortran routines directly into Peridigm. The integration of already existing UMAT routines based in Peridigm eliminates the need for redevelopment and reprogramming material models from classical continuum mechanics theory. In addition, the same material model implementations are applicable in finite element as well as peridynamic simulations. This opens up new possibilities for analysis, verification and comparison. With this interface many material routines can be reused and applied to progressive failure analysis. The source code is stored in a GitHub repository.
ISSN:2352-7110
2352-7110
DOI:10.1016/j.softx.2023.101322