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March 31, 2026Computer Methods in Applied Mechanics and EngineeringOpen Access

Origins of phase-field crack widening in dynamic fragmentation explained

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Authors

SDShad DurusselÉcole Polytechnique Fédérale de LausanneGMGergely MolnárUniversité Claude Bernard Lyon 1JMJean-Francois Roland MolinariÉcole Polytechnique Fédérale de Lausanne

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Implication

Investigates dynamic crack widening in materials, suggesting improved modeling techniques for fracture mechanics.

Key Points

  • To explain the origins of crack widening during dynamic fragmentation and assess the phase-field method's effectiveness.
  • Utilized a phase-field fracture approach for analyzing crack paths and zones of damage.
  • Examined the effects of elastic wave interactions on damage and crack propagation.
  • Conducted numerical simulations to compare results with linear elastic fracture mechanics predictions.
  • Identified progressive widening of the damage zone due to elastic wave trapping.
  • Demonstrated that mass erosion can reduce spurious damage diffusion while maintaining crack dynamics.
  • Showed convergence of phase-field crack behavior with traditional fracture mechanics under specific conditions.

Cite This Study

Durussel et al. (2026) studied this question.

synapsesocial.com/papers/69cb6589e6a8c024954b98b9https://doi.org/10.1016/j.cma.2026.118942
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