Study of Plastic Shear Localization via the Flow Theory of Mechanism-Based Strain Gradient Plasticity

被引：4
|
作者：
Shi, Z.
Huang, Y. [1 ,2 ]
Song, J. [4 ]
Hwang, K. C. [3 ]
Li, M. [5 ]
机构：
[1] Northwestern Univ, Dept Civil & Environm Engn, Evanston, IL 60208 USA
[2] Northwestern Univ, Dept Mech Engn, Evanston, IL 60208 USA
[3] Tsinghua Univ, Dept Engn Mech, FML, Beijing 100084, Peoples R China
[4] Univ Miami, Dept Mech & Aerosp Engn, Coral Gables, FL 33146 USA
[5] Alcoa Tech Ctr, Alcoa Ctr, PA 15069 USA
来源：
JOURNAL OF ENGINEERING MECHANICS | 2009年 / 135卷 / 03期
关键词：
Shear flow; Plasticity; Material properties; LENGTH SCALE PARAMETER; CRACK-TIP FIELD; POSTLOCALIZATION BEHAVIOR; SINGLE-CRYSTALS; DEFORMATION; INDENTATION; FRACTURE; HARDNESS; BANDS; MODEL;
D O I：
10.1061/(ASCE)0733-9399(2009)135:3(132)
中图分类号：
TH [机械、仪表工业];
学科分类号：
0802 ;
摘要：
The plastic shear localization is studied via the flow theory of mechanism-based strain gradient plasticity. The shear strain rate displays a rather sharp decrease from the center to the boundary of shear band, and gradually approaches the uniform remote shear strain rate outside the shear band. The shear band thickness obtained analytically is linearly proportional to the (length of) Burgers vector, and also depends on the softening modulus and mesoscale cell size. The maximum shear strain rate in the shear band, however, is sensitive to other material properties such as the ultimate tensile strength and intrinsic material length in strain gradient plasticity.
引用
收藏
页码：132 / 138
页数：7
相关论文
共 50 条
  • [31] Cutting deformation mechanism of SiCp/Al composites based on strain gradient theory
    Fan, Yihang
    Xu, Yongshuo
    Hao, Zhaopeng
    Lin, Jieqiong
    JOURNAL OF MATERIALS PROCESSING TECHNOLOGY, 2022, 299
  • [32] Predicting plastic flow and irradiation hardening of iron single crystal with mechanism-based continuum dislocation dynamics
    Li, Dongsheng
    Zbib, Hussein
    Sun, Xin
    Khaleel, Mohammad
    INTERNATIONAL JOURNAL OF PLASTICITY, 2014, 52 : 3 - 17
  • [33] Isotropic strain gradient plasticity model based on self-energies of dislocations and the Taylor model for plastic dissipation
    Gudmundson, Peter
    Dahlberg, Carl F. O.
    INTERNATIONAL JOURNAL OF PLASTICITY, 2019, 121 : 1 - 20
  • [34] A numerical study on the visco-plastic regularization of a rate-independent strain gradient crystal plasticity formulation
    Lara, Jose
    Steinmann, Paul
    COMPUTATIONAL MECHANICS, 2024, 74 (01) : 23 - 30
  • [35] Study on Microstructural Evolution of DP Steel Considering the Interface Layer Based on Multi Mechanism Strain Gradient Theory
    Zhuang, Qianduo
    Yue, Zhenming
    Zhou, Lingxiao
    Zhao, Xihang
    Qi, Jiashuo
    Min, Xinrui
    Zhang, Zhongran
    Gao, Jun
    MATERIALS, 2022, 15 (13)
  • [36] A strain-gradient plasticity theory with a corner-like effect: a thermodynamics-based extension
    Kuroda, Mitsutoshi
    INTERNATIONAL JOURNAL OF FRACTURE, 2016, 200 (1-2) : 115 - 125
  • [37] Micro/meso Scale Metallic Sheet Forming Process Analysis Based on the Strain Gradient Plasticity Theory
    Hu, Peng
    Peng, Linfa
    Lai, Xinmin
    Zhang, Weigang
    ADVANCED MATERIAL SCIENCE AND TECHNOLOGY, PTS 1 AND 2, 2011, 675-677 : 991 - +
  • [38] Study on Cyclic Strain Localization and Fatigue Fracture Mechanism in High Manganese Twinning-induced Plasticity Steels
    Hamada, Atef
    Porter, David
    Puustinen, Jarkko
    Karjalainen, L. Pentti
    PHYSICAL AND NUMERICAL SIMULATION OF MATERIALS PROCESSING VII, 2013, 762 : 411 - +
  • [39] Theoretical and experimental study of strain localization phenomenon based on phase transition theory
    Yan, Fayuan
    Wang, Enzhi
    Liu, Xiaoli
    Qi, Chengzhi
    Guo, Yangyang
    Xie, Weiqiang
    PHYSICS OF FLUIDS, 2024, 36 (05)
  • [40] Irreversible deformation of metal matrix composites: A study via the mechanism-based cohesive zone model
    Xu, Qiang
    Qu, Shaoxing
    MECHANICS OF MATERIALS, 2015, 89 : 72 - 84
12345