| DP-MPM: Domain partitioning material point method for evolving multi-body thermal-mechanical contacts during dynamic fracture and fragmentation | |
| Xiao, Mian; Liu CQ(刘传奇); Sun, WaiChing | |
| Source Publication | COMPUTER METHODS IN APPLIED MECHANICS AND ENGINEERING
 |
| 2021-11 | |
| Volume | 385Pages:114063 |
| ISSN | 0045-7825 |
| Abstract | We propose a material point method (MPM) to model the evolving multi-body contacts due to crack growth and fragmentation of thermo-elastic bodies. By representing particle interface with an implicit function, we adopt the gradient partition techniques introduced by Homel and Herbold (2017) to identify the separation between a pair of distinct material surfaces. This treatment allows us to replicate the frictional heating of the evolving interfaces and predict the energy dissipation more precisely in the fragmentation process. By storing the temperature at material points, the resultant MPM model captures the thermal advection-diffusion in a Lagrangian frame during the fragmentation, which in return affects the structural heating and dissipation across the frictional interfaces. The resultant model is capable of replicating the crack growth and fragmentation without requiring dynamic adaptation of data structures or insertion of interface elements. A staggered algorithm is adopted to integrate the displacement and temperature sequentially. Numerical experiments are employed to validate the diffusion between the thermal contact, the multi-body contact interactions and demonstrate how these thermo-mechanical processes affect the path-dependent behaviors of the multi-body systems. (C) 2021 Elsevier B.V. All rights reserved. |
| Keyword | Material point method Multi-body contact Fragmentation Brittle fracture Thermomechanics |
| Subject Area | Engineering, Multidisciplinary ; Mathematics, Interdisciplinary Applications ; Mechanics |
| DOI | 10.1016/j.cma.2021.114063 |
| Indexed By | SCI ; EI |
| Language | 英语 |
| WOS ID | WOS:000691816700005 |
| Funding Organization | Dynamic Materials and Interactions Program from the Air Force Office of Scientific Research, United States [FA9550-17-1-0169, FA9550-19-1-0318] ; Earth Materials and Processes program from the US Army Research Office [W911NF-18-2-0306] ; Presidential Fellowship of Columbia University, United States ; Columbia University, United States [FA9550-19-1-0318] |
| Classification | 一类 |
| Ranking | 1 |
| Contributor | Liu, CQ (corresponding author), Chinese Acad Sci Beijing, Inst Mech, State Key Lab Nonlinear Mech, Beijing 100090, Peoples R China. |
| Citation statistics | |
| Document Type | 期刊论文 |
| Identifier | http://dspace.imech.ac.cn/handle/311007/90250 |
| Collection | 非线性力学国家重点实验室 |
| Affiliation | 1.Columbia Univ, Dept Civil Engn & Engn Mech, 614 SW Mudd, New York, NY 10027 USA 2.Chinese Acad Sci Beijing, Inst Mech, State Key Lab Nonlinear Mech, Beijing 100090, Peoples R China |
| Recommended Citation GB/T 7714 | Xiao, Mian,Liu CQ,Sun, WaiChing. DP-MPM: Domain partitioning material point method for evolving multi-body thermal-mechanical contacts during dynamic fracture and fragmentation[J]. COMPUTER METHODS IN APPLIED MECHANICS AND ENGINEERING,2021,385:114063.Rp_Au:Liu, CQ (corresponding author), Chinese Acad Sci Beijing, Inst Mech, State Key Lab Nonlinear Mech, Beijing 100090, Peoples R China. |
| APA | Xiao, Mian,刘传奇,&Sun, WaiChing.(2021).DP-MPM: Domain partitioning material point method for evolving multi-body thermal-mechanical contacts during dynamic fracture and fragmentation.COMPUTER METHODS IN APPLIED MECHANICS AND ENGINEERING,385,114063. |
| MLA | Xiao, Mian,et al."DP-MPM: Domain partitioning material point method for evolving multi-body thermal-mechanical contacts during dynamic fracture and fragmentation".COMPUTER METHODS IN APPLIED MECHANICS AND ENGINEERING 385(2021):114063. |
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| DP-MPM Domain partit（5482KB） | 期刊论文 | 出版稿 | 开放获取 | CC BY-NC-SA | View Download | |
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