| A thermo-elastic-plastic phase-field model for simulating the evolution and transition of adiabatic shear band. Part II. Dynamic collapse of thick-walled cylinder | |
Wang T1 ; Liu ZL1; Cui YN1; Ye X(叶璇)2; Liu XM(刘小明)2; Tian R3; Zhuang Z1
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| Corresponding Author | Liu, Z. L.([email protected]) ; Zhuang, Z.([email protected]) |
| Source Publication | ENGINEERING FRACTURE MECHANICS
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| 2020-05-15 | |
| Volume | 231Pages:14 |
| ISSN | 0013-7944 |
| Abstract | In Part I, a thermo-elastic-plastic phase-field model is established for describing the adiabatic shear band (ASB) in metal materials. In this Part II, the developed model is used to simulate the classical thick-walled cylinder (TWC) experiment to investigate the self-organizing behavior of multiple ASBs. For the first time, the formation process of self-organized ASBs in the TWC experiment is reproduced by the phase-field method and the underlying physical mechanism is analyzed in detail. The simulation results show that the number and spacing of ASBs are related to loading rate and material properties. A higher loading rate leads to more intensive ASBs. For typical engineering materials such as 304L stainless steel (Ss304L) and titanium alloy (Ti6Al4V), the contribution of thermal softening to the formation of ASBs is far less than that of damage softening. However, thermal softening is very important to induce initial ASBs. In addition, we also find that defects, especially large ones, play a dominant role in the initiation and evolution of ASBs, leading to complex patterns of ASBs in the TWC experiments. |
| Keyword | Adiabatic shear band Phase-field Thick-walled cylinder Self-organizing behavior Defect effect |
| DOI | 10.1016/j.engfracmech.2020.107027 |
| Indexed By | SCI ; EI |
| Language | 英语 |
| WOS ID | WOS:000576755900001 |
| WOS Keyword | MECHANISM CONSTITUTIVE MODEL ; SELF-ORGANIZATION ; BRITTLE SOLIDS ; DAMAGE MODEL ; FAILURE ; FRACTURE ; LOCALIZATION ; DEFORMATION ; COMPRESSION ; FORMULATION |
| WOS Research Area | Mechanics |
| WOS Subject | Mechanics |
| Funding Project | Science Challenge Project[TZ2018002] ; National Natural Science Foundation of China[11532008] ; National Natural Science Foundation of China[11972208] ; China Postdoctoral Science Foundation[2019M650699] |
| Funding Organization | Science Challenge Project ; National Natural Science Foundation of China ; China Postdoctoral Science Foundation |
| Classification | 二类/Q1 |
| Ranking | 4 |
| Contributor | Liu, Z. L. ; Zhuang, Z. |
| Citation statistics | |
| Document Type | 期刊论文 |
| Identifier | http://dspace.imech.ac.cn/handle/311007/85328 |
| Collection | 非线性力学国家重点实验室 |
| Affiliation | 1.Tsinghua Univ, Sch Aerosp Engn, Appl Mech Lab, Beijing 100084, Peoples R China; 2.Chinese Acad Sci, Inst Mech, LNM, Beijing 100190, Peoples R China; 3.Inst Appl Phys & Computat Math, Software Ctr High Performance Numer Simulat, Beijing 100088, Peoples R China |
| Recommended Citation GB/T 7714 | Wang T,Liu ZL,Cui YN,et al. A thermo-elastic-plastic phase-field model for simulating the evolution and transition of adiabatic shear band. Part II. Dynamic collapse of thick-walled cylinder[J]. ENGINEERING FRACTURE MECHANICS,2020,231:14.Rp_Au:Liu, Z. L., Zhuang, Z. |
| APA | Wang T.,Liu ZL.,Cui YN.,叶璇.,刘小明.,...&Zhuang Z.(2020).A thermo-elastic-plastic phase-field model for simulating the evolution and transition of adiabatic shear band. Part II. Dynamic collapse of thick-walled cylinder.ENGINEERING FRACTURE MECHANICS,231,14. |
| MLA | Wang T,et al."A thermo-elastic-plastic phase-field model for simulating the evolution and transition of adiabatic shear band. Part II. Dynamic collapse of thick-walled cylinder".ENGINEERING FRACTURE MECHANICS 231(2020):14. |
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| Jp2020319.pdf（6429KB） | 期刊论文 | 出版稿 | 开放获取 | CC BY-NC-SA | View Download | |
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