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February 21, 2026Engineering With ComputersOpen Access

A differentiable variational model for structural self-contact and fracture

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Authors

MCMirko CiceriCACharlie AvelineDTDilaksan Thillaithevan

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Overview

Numerical modeling reveals a differentiable framework for studying self-contact and fracture in structures, suggesting improved engineering applications.

Key Points

  • The research aims to develop a unified model for analyzing structural self-contact and fracture, addressing limitations in traditional methods.
  • Introduced a differentiable variational formulation to unify contact and fracture modeling.
  • Utilized a hyperelastic third medium contact model for describing contact phenomenon.
  • Implemented a phase field approach for representing fracture.
  • Developed a numerically stable framework to analyze nonlinear structural behaviors efficiently.
  • Demonstrated the model's capability to capture complex nonlinear phenomena in structural analysis.
  • Enabled efficient simulation of crack propagation in energetically favorable regions.
  • Facilitated potential integration into topology optimization for enhanced design features.

Cite This Study

Ciceri et al. (2026) studied this question.

synapsesocial.com/papers/69994c80873532290d020fedhttps://doi.org/10.1007/s00366-026-02285-6
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