| A constitutive model for metallic glasses based on two-temperature nonequilibrium thermodynamics | |
Rao W(饶威)1,2,3; Chen Y(陈艳)1,3 ; Dai LH(戴兰宏)1,3
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| Corresponding Author | Chen, Yan([email protected]) ; Dai, Lan-Hong([email protected]) |
| Source Publication | INTERNATIONAL JOURNAL OF PLASTICITY
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| 2022-07-01 | |
| Volume | 154Pages:29 |
| ISSN | 0749-6419 |
| Abstract | We develop a new finite deformation constitutive model for metallic glass within the framework of irreversible nonequilibrium thermodynamics. To consider the intrinsically out-of-equilibrium characteristics of metallic glass, its total internal energy is divided into two weakly coupled configurational and kinetic subsystems, and configurational temperature coupling with configurational degrees of freedom is introduced as a thermodynamic state variable to characterize the evolution of the disordered structure. Furthermore, the classical shear transformation zone theory is extended by reasonably considering the reverse shear transformation as a form of the relaxation of the strain field, which is stored in the elastic matrix and produced by the constraint of the matrix on shear transformation. With the help of the finite element implementation for the new model, the effectiveness of the proposed model is validated by comparing the modeling stress- strain responses of the macroscopic deformations under different temperatures and strain rates with the experimental results, and the utility of the model for predicting the shear banding behavior of metallic glasses is examined as well. The results therefore show that the constructed constitutive model can not only effectively predict the deformations of metallic glass under different ambient temperatures and applied strain rates, but also reasonably explain the mechanisms of deformation mode evolution and shear band formation. |
| Keyword | Metallic glasses Constitutive model Nonequilibrium Configurational temperature Deformation mode Shear band |
| DOI | 10.1016/j.ijplas.2022.103309 |
| Indexed By | SCI ; EI |
| Language | 英语 |
| WOS ID | WOS:000794343000001 |
| WOS Keyword | FRACTURE-BEHAVIOR ; DEFORMATION ; FAILURE ; ORIGIN ; SIMULATIONS ; TEMPERATURE ; CAVITATION ; TRANSITION ; PLASTICITY ; MECHANISM |
| WOS Research Area | Engineering ; Materials Science ; Mechanics |
| WOS Subject | Engineering, Mechanical ; Materials Science, Multidisciplinary ; Mechanics |
| Funding Project | NSFC[11790292] ; NSFC[12002342] ; NSFC[11972346] ; NSFC[11672299] ; NSFC Basic Science Center Program for Multiscale Problems in Nonlinear Mechanics[11988102] ; Strategic Priority Research Program[XDB22040302] ; Strategic Priority Research Program[XDB22040303] ; Key Research Program of Frontier Sciences[QYZDJSSW-JSC011] ; opening project of State Key Laboratory of Explosion Science and Technology (Beijing Institute of Technology)[KFJJ18-14M] |
| Funding Organization | NSFC ; NSFC Basic Science Center Program for Multiscale Problems in Nonlinear Mechanics ; Strategic Priority Research Program ; Key Research Program of Frontier Sciences ; opening project of State Key Laboratory of Explosion Science and Technology (Beijing Institute of Technology) |
| Classification | 一类 |
| Ranking | 1 |
| Contributor | Chen, Yan ; Dai, Lan-Hong |
| Citation statistics | |
| Document Type | 期刊论文 |
| Identifier | http://dspace.imech.ac.cn/handle/311007/89376 |
| Collection | 非线性力学国家重点实验室 |
| Affiliation | 1.Chinese Acad Sci, Inst Mech, State Key Lab Nonlinear Mech, Beijing 100190, Peoples R China; 2.Beijing Univ Technol, Inst Mech, Fac Mat & Mfg, Beijing 100190, Peoples R China; 3.Univ Chinese Acad Sci, Sch Engn Sci, Beijing 101408, Peoples R China |
| Recommended Citation GB/T 7714 | Rao W,Chen Y,Dai LH. A constitutive model for metallic glasses based on two-temperature nonequilibrium thermodynamics[J]. INTERNATIONAL JOURNAL OF PLASTICITY,2022,154:29.Rp_Au:Chen, Yan, Dai, Lan-Hong |
| APA | 饶威,陈艳,&戴兰宏.(2022).A constitutive model for metallic glasses based on two-temperature nonequilibrium thermodynamics.INTERNATIONAL JOURNAL OF PLASTICITY,154,29. |
| MLA | 饶威,et al."A constitutive model for metallic glasses based on two-temperature nonequilibrium thermodynamics".INTERNATIONAL JOURNAL OF PLASTICITY 154(2022):29. |
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| Jp2022FA280_2022_A c（7912KB） | 期刊论文 | 出版稿 | 开放获取 | CC BY-NC-SA | View Download | |
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