Crack Nucleation and Growth Subjected to Dynamic Loads

• Ph.D. project at Dolbow Lab, Duke University
• Developed with RACCOON, an open-source finite-element code tailored for phase-field fracture modeling, built on the MOOSE framework.
• A comprehensive computational framework is developed for simulating crack nucleation and growth in materials subjected to dynamic loads. The framework builds upon and extends recent advancements in phase-field models, incorporating an arbitrary material strength via an external driving force in the evolution equation for the phase field. The proposed framework is validated against a broad range of benchmark problems and experimental observations in dynamic fracture.

Gallery

Fragmentation of a hollow sphere under internal pressure (Liu 2024; Liu, Lopez-Pamies, and Dolbow 2024)

References

Liu, Yangyuanchen. 2024. “A Computational Framework for Simulating Crack Nucleation and Growth in Materials Subjected to Dynamic Loads.” Duke University. PhD thesis.

Liu, Yangyuanchen, Oscar Lopez-Pamies, and John E. Dolbow. 2024. “On the Effects of Material Strength in Dynamic Fracture: A Phase-Field Study.” arXiv Preprint. https://doi.org/10.48550/arXiv.2411.16393.