A user material interface for the Peridynamic Peridigm framework

Willberg, Christian; Hesse, Jan-Timo; Garbade, Marc; Rädel, Martin; Heinecke, Falk; Schuster, Andreas; Pernatii, Anna

doi:10.1016/j.softx.2023.101322

Cited by 5 publications

(2 citation statements)

References 10 publications

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“…Therefore, the interface to the external UMAT is structured to work in a Fortran‐to‐Fortran manner. The C++‐to‐Fortran interface remains within Peridigm, where the necessary transformations from C++ to Fortran are performed [7]. This approach allows for the full functionality to be provided, and the interface becomes more robust.…”

Section: Approachmentioning

confidence: 99%

“…This framework facilitates parallelization of large-scale models and includes a post-processing interface to the open-source software ParaView 1 . Over the years, Peridigm has seen various extensions, such as the incorporation of energy-based ordinary state-based damage models, anisotropy, and correspondence energy damage models [6,7]. Additionally, an interface to existing Abaqus user materials (UMAT) has been developed to integrate already-established material routines.…”

Section: Introductionmentioning

confidence: 99%

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Why develop twice? Integration of continuum mechanical material models in Peridynamics

Willberg,

Hesse,

Pernatii

et al. 2024

Proc Appl Math and Mech

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To harvest the full potential of the peridynamic approach, the state‐of‐the‐art material models should be usable without redeveloping or reimplementing them from classical continuum mechanics theory. User materials (UMAT) in finite element codes allow the researchers or engineers to apply their own material routines. Simple interfaces are specified to allow the utilization of material behaviors in software. In order to use these already existing and often validated models with 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 finite element (FE) software Abaqus UMAT definition and allows the integration of Fortran routines directly into Peridigm. In addition, the same material model implementations are applicable in finite element applications as well as peridynamic simulations. In the presentation, the interface is presented and various material models are utilized and compared between Peridynamics and FE methods. The effect of the horizon and nonlocal boundaries are analyzed and discussed.

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Section: Approachmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Why develop twice? Integration of continuum mechanical material models in Peridynamics

Willberg,

Hesse,

Pernatii

et al. 2024

Proc Appl Math and Mech

Self Cite

View full text Add to dashboard Cite

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Reducing the entry barrier for users and developers of peridynamic high performance computing

Hesse,

Willberg,

Pernatii

2024

Proc Appl Math and Mech

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Over the past two decades, Peridynamics (PD) research has exhibited remarkable diversity, with contributions spanning more than 180 journals and involving over 1000 researchers. Despite its broad applicability, a persistent challenge remains—how to foster widespread adoption. In the engineering domain, classical continuum mechanics, predominantly facilitated by the finite element method, enjoys extensive utilization, supported by a plethora of commercial and open‐source software tools. PD simulation tools often find themselves competing with these well‐established counterparts. In research, custom codes tailored for specific applications are frequently created and applied, with little consideration for their future reuse or third‐party utilization. The complexity is further exacerbated in High‐performance computing (HPC) applications, where a deep understanding of solvers, parallel computing, and PD is imperative for a successful software development. Given the constraints of a typical doctoral thesis, large‐scale problems are often left unexplored, and research tends to be confined to simplistic geometries. This paper aims to elucidate various pathways for the seamless integration and utilization of a PD framework. We will showcase examples that illustrate how the barriers for both users and developers can be significantly lowered, ultimately propelling PD simulation tools to a higher standard of maturity in the medium term.

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The Peridigm Meshfree Peridynamics Code

Littlewood

Parks

Foster³

et al. 2023

J Peridyn Nonlocal Model

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Peridigm is a meshfree peridynamics code written in C++ for use on large-scale parallel computers. It was originally developed at Sandia National Laboratories and is currently managed as an open-source, community driven software project. Its primary features include bond-based, state-based, and non-ordinary state-based constitutive models, bond failure laws, contact, and support for explicit and implicit time integration. To date, Peridigm has been used primarily by methods developers focused on solid mechanics and material failure. Peridigm utilizes foundational software components from Sandia’s Trilinos project and was designed for extensibility. This paper provides an overview of the solution methods implemented in Peridigm, a discussion of its software infrastructure, and demonstrates the use of Peridigm for the solution of several example problems.

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A user material interface for the Peridynamic Peridigm framework

Cited by 5 publications

References 10 publications

Why develop twice? Integration of continuum mechanical material models in Peridynamics

Why develop twice? Integration of continuum mechanical material models in Peridynamics

Reducing the entry barrier for users and developers of peridynamic high performance computing

The Peridigm Meshfree Peridynamics Code

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