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Fracture mechanics, rooted in Griffith’s pioneering research, offers insights for predicting material failure and enhancing product reliability, with applications in research and industry. This work utilizes an innovative automated finite element procedure to analyze fracture initiation and propagation in two-dimensional structures. A step-by-step algorithm, based on a global–local energy criterion, drives fracture propagation without local mesh refinement, enabling a streamlined free-meshing approach. A modified 4-point bending plate is numerically investigated by considering hard/soft inclusions with different elastic moduli and negative Poisson’s ratios, demonstrating auxetic media’s effectiveness in shielding against hole cracking.

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Crack Propagation in Hollowed Structures by Accounting for Poisson’s Effect

  • 会议论文

  • 发表日期：

    2026年

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  • Simone Palladino,
  • Luca Esposito,
  • Vincenzo Minutolo

摘要

Fracture mechanics, rooted in Griffith’s pioneering research, offers insights for predicting material failure and enhancing product reliability, with applications in research and industry. This work utilizes an innovative automated finite element procedure to analyze fracture initiation and propagation in two-dimensional structures. A step-by-step algorithm, based on a global–local energy criterion, drives fracture propagation without local mesh refinement, enabling a streamlined free-meshing approach. A modified 4-point bending plate is numerically investigated by considering hard/soft inclusions with different elastic moduli and negative Poisson’s ratios, demonstrating auxetic media’s effectiveness in shielding against hole cracking.