IMECH-IR  > 非线性力学国家重点实验室
A thermo-elastic-plastic phase-field model for simulating the evolution and transition of adiabatic shear band. Part I. Theory and model calibration
Wang, T1; Liu, ZL1; Cui, YN1; Ye X(叶璇)2; Liu XM(刘小明)2; Tian, R.3; Zhuang, Z.1
Corresponding AuthorLiu, Z. L.(liuzhanli@tsinghua.edu.cn) ; Zhuang, Z.(zhuangz@tsinghua.edu.cn)
Source PublicationENGINEERING FRACTURE MECHANICS
2020-06-01
Volume232Pages:12
ISSN0013-7944
AbstractAdiabatic shear band (ASB) is an important failure mode of solid materials, especially for metal materials under high strain rate loading. In this study, a thermo-elastic-plastic phase-field model, which considers both damage softening and thermal softening, is established to simulate the formation of multiple ASBs and the transition from ASB to the fracture. How to select and calibrate the material parameters in the phase-field model is seldom clearly discussed in the current phase-field model when dealing with ASB. In this paper, the damage parameters in the phase-field method are calibrated using data from pure shear specimens, taking into account both the overall response of the structure and the local response in the ASB. As an application, the calibrated model is used to numerically study the evolution of the ASB of the hat specimen and the process of its transition to the fracture. The simulation results successfully explain the typical phenomena such as transient "hot spots" and double softening in the experiment. The numerical model we developed provides a reliable quantitative description for the evolution and width calculation of ASBs and lays a foundation for the further study of ASB.
KeywordAdiabatic shear band Phase-field model Fracture Parameter calibration Multi-field coupling
DOI10.1016/j.engfracmech.2020.107028
Indexed BySCI ; EI
Language英语
WOS IDWOS:000536482400003
WOS KeywordMECHANISM CONSTITUTIVE MODEL ; CRACK-PROPAGATION ; DYNAMIC FAILURE ; DAMAGE MODEL ; STRESS TRIAXIALITY ; BRITTLE-FRACTURE ; FORMULATION ; LAW ; COMPRESSION ; DEPENDENCE
WOS Research AreaMechanics
WOS SubjectMechanics
Funding ProjectScience Challenge Project[TZ2018002] ; National Natural Science Foundation of China[11532008] ; National Natural Science Foundation of China[11972208] ; China Postdoctoral Science Foundation[2019M650699]
Funding OrganizationScience Challenge Project ; National Natural Science Foundation of China ; China Postdoctoral Science Foundation
Classification二类/Q1
Ranking4
ContributorLiu, Z. L. ; Zhuang, Z.
Citation statistics
Document Type期刊论文
Identifierhttp://dspace.imech.ac.cn/handle/311007/82070
Collection非线性力学国家重点实验室
Affiliation1.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 I. Theory and model calibration[J]. ENGINEERING FRACTURE MECHANICS,2020,232:12.
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 I. Theory and model calibration.ENGINEERING FRACTURE MECHANICS,232,12.
MLA Wang, T,et al."A thermo-elastic-plastic phase-field model for simulating the evolution and transition of adiabatic shear band. Part I. Theory and model calibration".ENGINEERING FRACTURE MECHANICS 232(2020):12.
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