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

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

6th February 2024 | Abedulgader Baktheer, Emilio Martínez-Pañeda, Fadi Aldakheel
The paper presents an extension of the phase field cohesive zone method (PF-CZM) to model fatigue-induced crack propagation in quasi-brittle materials, specifically concrete. The PF-CZM is a versatile approach that has been widely used for fracture behavior modeling in such materials. This study aims to validate the extended PF-CZM by evaluating its performance across various fatigue behaviors, including hysteretic behavior, S-N curves, fatigue creep curves, and the Paris law. The validation covers a wide range of loading scenarios, such as pre- and post-peak cyclic loading, as well as low- and high-cycle fatigue loading. The results demonstrate the robustness and adaptability of the proposed approach, showing its ability to accurately capture the propagation of fatigue cracks in concrete-like materials. The paper also provides recommendations to improve the predictive capabilities of the model concerning key fatigue characteristics. The implementation of the PF-CZM in the finite element software ABAQUS is described, and numerical simulations are conducted to compare the model's predictions with experimental data, confirming the effectiveness of the approach in simulating fatigue crack propagation under different loading conditions.The paper presents an extension of the phase field cohesive zone method (PF-CZM) to model fatigue-induced crack propagation in quasi-brittle materials, specifically concrete. The PF-CZM is a versatile approach that has been widely used for fracture behavior modeling in such materials. This study aims to validate the extended PF-CZM by evaluating its performance across various fatigue behaviors, including hysteretic behavior, S-N curves, fatigue creep curves, and the Paris law. The validation covers a wide range of loading scenarios, such as pre- and post-peak cyclic loading, as well as low- and high-cycle fatigue loading. The results demonstrate the robustness and adaptability of the proposed approach, showing its ability to accurately capture the propagation of fatigue cracks in concrete-like materials. The paper also provides recommendations to improve the predictive capabilities of the model concerning key fatigue characteristics. The implementation of the PF-CZM in the finite element software ABAQUS is described, and numerical simulations are conducted to compare the model's predictions with experimental data, confirming the effectiveness of the approach in simulating fatigue crack propagation under different loading conditions.
Reach us at info@study.space