A unified description of strain-rate softening instabilities

被引：23
|
作者：
Zaiser, M [1 ]
Hahner, P
机构：
[1] Max Planck Inst Met Forsch, Inst Phys, Heisenbergstr 1, D-70569 Stuttgart, Germany
[2] Commiss European Communities, Joint Res Ctr, Inst Adv Mat, I-21020 Ispra, Va, Italy
[3] Commiss European Communities, Joint Res Ctr, Inst Syst Informat & Safety, I-21020 Ispra, Va, Italy
来源：
MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING | 1997年 / 238卷 / 02期
关键词：
plastic instabilities; Portevin Le Chatelier effect; strain localization; strain-rate softening;
D O I：
10.1016/S0921-5093(97)00468-1
中图分类号：
TB3 [工程材料学];
学科分类号：
0805 ; 080502 ;
摘要：
A general constitutive description for strain-rate softening materials is proposed. Critical conditions for the occurrence of plastic instabilities are derived and compared to previously established stability criteria. It is shown that the description applies to a large variety of physical situations. In particular, instabilities due to dynamic strain ageing and thermomechanical coupling are discussed. A simple argument is given to decide whether instability goes along with static or propagative strain localization. (C) 1997 Elsevier Science S.A.
引用
收藏
页码：399 / 406
页数：8
相关论文
共 50 条
  • [1] Unified description of strain-rate softening instabilities
    Max-Planck Inst fuer Metallforschung, Stuttgart, Germany
    Mater Sci Eng A Struct Mater Prop Microstruct Process, 2 (399-406):
  • [2] Viscoplasticity for instabilities due to strain softening and strain-rate softening
    Wang, WM
    Sluys, LJ
    deBorst, R
    INTERNATIONAL JOURNAL FOR NUMERICAL METHODS IN ENGINEERING, 1997, 40 (20) : 3839 - 3864
  • [3] STRAIN AND STRAIN-RATE SOFTENING INSTABILITIES - LENGTH SCALES AND SPATIAL COUPLINGS
    KUBIN, LP
    PLASTICITY OF METALS AND ALLOYS - ISPMA 6, 1994, 97-9 : 219 - 234
  • [4] A NEW DESCRIPTION OF STRAIN-RATE SENSITIVITY
    WAGONER, RH
    SCRIPTA METALLURGICA, 1981, 15 (10): : 1135 - 1137
  • [5] Regularization of softening plasticity with the cumulative plastic strain-rate gradient
    Bacquaert, G.
    Bleyer, J.
    Maurini, C.
    JOURNAL OF THE MECHANICS AND PHYSICS OF SOLIDS, 2025, 194
  • [6] Strain-rate dependence of the dynamic softening in a duplex stainless steel
    Chen, Wenxiong
    Zheng, Chengwu
    Jia, Chunni
    Hu, Baojia
    Li, Dianzhong
    MATERIALS CHARACTERIZATION, 2020, 162
  • [7] EFFECT OF THERMAL SOFTENING IN SHEARING OF STRAIN-RATE DEPENDENT MATERIALS
    TZAVARAS, AE
    ARCHIVE FOR RATIONAL MECHANICS AND ANALYSIS, 1987, 99 (04) : 349 - 374
  • [8] Evidence That Strain-Rate Softening Is Not Necessary for Material Instability Patterns
    Valdes, Julio R.
    Guillard, Francois
    Einav, Itai
    PHYSICAL REVIEW LETTERS, 2017, 119 (11)
  • [9] Strain and strain rate softening instabilities: length scales and spatial couplings
    Kubin, L.P.
    Mechanical and corrosion properties. Series A, Key engineering materials, 1994, 97-98 : 219 - 234
  • [10] The strain-rate effect of engineering materials and its unified model
    Yu Shui-sheng
    Lu Yu-bin
    Cai Yong
    LATIN AMERICAN JOURNAL OF SOLIDS AND STRUCTURES, 2013, 10 (04): : 833 - 844
12345