Peridynamic Modeling and Simulation of Ice Craters By Impact

• Published in: Computer modeling in engineering & sciences Vol. 121; no. 2; pp. 465 - 492
• Main Authors: Song, Ying, Yan, Jiale, Li, Shaofan, Kang, Zhuang
• Format: Journal Article
• Language: English
• Published: Henderson Tech Science Press 01.01.2019
• Subjects: Adaptive Particle Refinement; Computer simulation; Constitutive models; Craters; Elastic analysis; Elastic deformation; Fracture toughness; Ice Constitutive Model; Ice Craters; Ice formation; Impact; Impact loads; Mathematical models; Peridynamics; Plastic deformation
• ISSN: 1526-1492; 1526-1506; 1526-1506
• DOI: 10.32604/cmes.2019.07190

In the present work, a state-based peridynamics with adaptive particle refinement is proposed to simulate water ice crater formation due to impact loads. A modified Drucker-Prager constitutive model was adopted to model ice and was implemented in the state-based peridynamic equations to analyze the elastic-plastic deformation of ice. In simulations, we use the fracture toughness failure criterion in peridynamics to simulate the quasi-brittle failure of ice. An adaptive particle refinement method in peridynamics was proposed to improve computational efficiency. The results obtained using the peridynamic model were compared with the experiments in previous literatures. It was found that the peridynamic simulation results and the experiments matched well except for some minor differences discussed, and the state-based peridynamic model has shown the specific predictive capacity to capture the detailed crater features of the ice.