Abstract
Fracture is a common problem in Marine structures. It is significant to study the crack growth and failure model of brittle materials for preventing brittle damage and protecting the structural safety of marine structures in ocean engineering. There are some limitations on calculating the failure of solid materials using classical continuum mechanics (CCM). Peridynamics (PD) is one form of reconstitution of CCM, which is very suitable for simulating damage and crack propagation. In the present work, two surface effect correction methods are applied in bond-based PD for simulating and capturing the failure patterns experimentally observed in brittle fractures. Then, the efficient and accuracy of the modified BPD are verified. Furthermore, multiple crack interactions in brittle materials for ocean engineering using the extended BPD under dynamic uniaxial and biaxial loading are studied. The results show that not only does the interaction between macro-cracks and micro-cracks affect the growth paths of cracks, but dynamic uniaxial or biaxial loading also significantly affects the multiple cracks propagation patterns.
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Acknowledgment
This study was supported by the State Key Laboratory of Ocean Engineering. The authors are also grateful to Prof. Haining Lu for providing guidance on this study. The research was supported by the Hainan Provincial Joint Project of Sanya Yazhou Bay Science and Technology City [Grant No: 2021JJLH0020] and National Natural Science Foundation of China [Grant No: 51979159]. The authors are grateful for the financial support.
The research was supported by the Hainan Provincial Joint Project of Sanya Yazhou Bay Science and Technology City [Grant No: 2021JJLH0020] and National Natural Science Foundation of China [Grant No: 51979159].
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Li, S., Lu, H., Yang, J. (2023). Study on Multiple Crack Interactions in Brittle Materials for Ocean Engineering Using Peridynamics. In: Yang, D. (eds) 2023 International Conference on Marine Equipment & Technology and Sustainable Development. METSD 2023. Lecture Notes in Civil Engineering, vol 375. Springer, Singapore. https://doi.org/10.1007/978-981-99-4291-6_5
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DOI: https://doi.org/10.1007/978-981-99-4291-6_5
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