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Phase Field Cohesive Zone Modeling for Fatigue Crack Propagation in Quasi-Brittle Materials

Abedulgader Baktheer, Emilio Martínez-Pañeda

2022enfatiguecrack propagationcohesive zonephase fieldquasi-brittle

Abstract

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The phase field method has gathered significant attention in the past decade due to its versatile applications in engineering contexts, including fatigue crack propagation modeling. Particularly, the phase field cohesive zone method (PF-CZM) has emerged as a promising approach for modeling fracture behavior in quasi-brittle materials, such as concrete. This study critically examines the validity of the extended PF-CZM approach by evaluating its performance across various fatigue behaviours, encompassing hysteretic behavior, S-N curves, fatigue creep curves, and the Paris law. The experimental investigations and validation span a diverse spectrum of loading scenarios, encompassing pre- and post-peak cyclic loading, as well as low- and high-cyclic fatigue loading. The validation process incorporates 2D and 3D boundary value problems, considering mode I and mixed-modes fatigue crack propagation. The results obtained from this study show a wide range of validity, underscoring the remarkable potential of the proposed PF-CZM approach to accurately capture the propagation of fatigue cracks in concrete-like materials. Furthermore, the paper outlines recommendations to improve the predictive capabilities of the model concerning key fatigue characteristics.

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Cite This Work

@article{73a43c7b-65b2-4e9a-9a76-3e0c5cd74f3d,
  title={Phase Field Cohesive Zone Modeling for Fatigue Crack Propagation in Quasi-Brittle Materials},
  author={Abedulgader Baktheer and Emilio Martínez-Pañeda},
  year={2022},
  language={en}
}
TY  - JOUR
TI  - Phase Field Cohesive Zone Modeling for Fatigue Crack Propagation in Quasi-Brittle Materials
AU  - Abedulgader Baktheer
AU  - Emilio Martínez-Pañeda
PY  - 2022
LA  - en
ER  -

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