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Multi-phase Modeling on Spall and Recompression Process of Tin Under Double Shockwaves
Fengchao Wu1,*, Xuhai Li1, Yi Sun1, Yuanchao Gan1, Huayun Geng1, Yuying Yu1, Jianbo Hu1
1 Laboratory for Shock Wave and Detonation Physics, Institute of Fluid Physics, China Academy of Engineering Physics,
Mianyang, 621900, China
* Corresponding Author: Fengchao Wu. Email:
The International Conference on Computational & Experimental Engineering and Sciences 2023, 26(3), 1-1. https://doi.org/10.32604/icces.2023.09320
Abstract
The dynamical response of materials to multiple shock waves is a critical issue in shock physics and
engineering applications. In this work, hydrodynamic simulations are used to investigate the shock-induced
spall failure and subsequent recompression characteristics of tin, under the implementation of a multiphase equation of state, multi-phase constitutive relations, and a damage model. As within experiments,
double shock loadings in simulations are driven by layered impactors with different shock impedances. In
general, our numerical calculations agree well with recent tin spall experiments and reproduce the free
surface velocity characteristics. Interesting dynamic behaviors such as tin shock compression, dynamic
tensile fracture, and void compaction are revealed to occur in succession as a result of complex wave
interactions caused by multiple impacts. With increasing shock strength, the appearance of β-γ phase
transition or melting not only changes the primary fracture characteristic, but also affects the subsequent
compaction state and inter-shock interval, which suggests the significant effect of phase transition and its
synergism with spall fracture. Meanwhile, the multi-phase simulation results show that certain parts of the
tin material are in the mixed phase state during dynamic loading or unloading, like the coexistence of β phase
and γ phase. Although current research provides a quantitative understanding of spall features induced by
double shocks, better multiphase material models are needed to improve fidelity in describing complex
fracture behaviors.
Keywords
Cite This Article
APA Style
Wu, F., Li, X., Sun, Y., Gan, Y., Geng, H. et al. (2023). Multi-phase modeling on spall and recompression process of tin under double shockwaves. The International Conference on Computational & Experimental Engineering and Sciences, 26(3), 1-1. https://doi.org/10.32604/icces.2023.09320
Vancouver Style
Wu F, Li X, Sun Y, Gan Y, Geng H, Yu Y, et al. Multi-phase modeling on spall and recompression process of tin under double shockwaves. Int Conf Comput Exp Eng Sciences . 2023;26(3):1-1 https://doi.org/10.32604/icces.2023.09320
IEEE Style
F. Wu et al., "Multi-phase Modeling on Spall and Recompression Process of Tin Under Double Shockwaves," Int. Conf. Comput. Exp. Eng. Sciences , vol. 26, no. 3, pp. 1-1. 2023. https://doi.org/10.32604/icces.2023.09320