Peridynamic Modeling and Simulation of Ice Craters By Impact  

作　　者：Ying Song Jiale Yan Shaofan Li Zhuang Kang 

机构地区：[1]College of Shipbuilding Engineering,Harbin Engineering University,Harbin,150001,China [2]Department of Civil and Environmental Engineering,University of California,Berkeley,CA,USA

出　　处：《Computer Modeling in Engineering & Sciences》2019年第11期465-492,共28页工程与科学中的计算机建模（英文）

摘　　要：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.

关 键 词：PERIDYNAMICS ICE CONSTITUTIVE model adaptive particle REFINEMENT ICE CRATERS IMPACT 

分 类 号：TG1[金属学及工艺—金属学]