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ADIABATIC SHEAR BANDING IN DYNAMIC PLANE-STRAIN COMPRESSION OF A VISCOPLASTIC MATERIAL
被引:23
作者
:
BATRA, RC
论文数:
0
引用数:
0
h-index:
0
机构:
Department of Mechanical, Aerospace Engineering Mechanics University of Missouri-Rolla, Rolla
BATRA, RC
LIU, DS
论文数:
0
引用数:
0
h-index:
0
机构:
Department of Mechanical, Aerospace Engineering Mechanics University of Missouri-Rolla, Rolla
LIU, DS
机构
:
[1]
Department of Mechanical, Aerospace Engineering Mechanics University of Missouri-Rolla, Rolla
来源
:
INTERNATIONAL JOURNAL OF PLASTICITY
|
1990年
/ 6卷
/ 02期
基金
:
美国国家科学基金会;
关键词
:
D O I
:
10.1016/0749-6419(90)90023-8
中图分类号
:
TH [机械、仪表工业];
学科分类号
:
0802 ;
摘要
:
Dynamic plane strain thermomechanical deformations of a thermally softening viscoplastic body subjected to compressive loads on the top and bottom faces are studied with the objective of exploring the effect of (a) modeling the material inhomogeneity by introducing a temperature perturbation or assuming the existence of a weak material within the block, (b) introducing two defects symmetrically placed on the vertical axis of the block. The effect of setting the thermal conductivity equal to zero is also studied in the latter case. It is found that, irrespective of the way the material inhomogeneity is modeled, a shear band initiates from the site of the defect and propagates in the direction of maximum shearing stress. The value of the average strain at the instant of the initiation of the band depends upon the strength of the material defect introduced. Once the shear band reaches the boundaries of the block it is reflected back, the angle of reflection being nearly equal to the angle of incidence. © 1990.
引用
收藏
页码:231 / 246
页数:16
相关论文
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共 35 条
[31]
DEFORMATION TRAPPING DUE TO THERMOPLASTIC INSTABILITY IN ONE-DIMENSIONAL WAVE-PROPAGATION
[J].
WU, FH
论文数:
0
引用数:
0
h-index:
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WU, FH
;
FREUND, LB
论文数:
0
引用数:
0
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FREUND, LB
.
JOURNAL OF THE MECHANICS AND PHYSICS OF SOLIDS,
1984,
32
(02)
:119
-132
[32]
ON THE STRUCTURE AND WIDTH OF SHEAR BANDS
[J].
ZBIB, HM
论文数:
0
引用数:
0
h-index:
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Michigan Technological Univ,, Houghton, MI, USA, Michigan Technological Univ, Houghton, MI, USA
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;
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0
h-index:
0
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Michigan Technological Univ,, Houghton, MI, USA, Michigan Technological Univ, Houghton, MI, USA
AIFANTIS, EC
.
SCRIPTA METALLURGICA,
1988,
22
(05)
:703
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[33]
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[J].
Zener, C
论文数:
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;
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Watertown Arsenal Lab, Res Div, Watertown, MA USA
Watertown Arsenal Lab, Res Div, Watertown, MA USA
Hollomon, JH
.
JOURNAL OF APPLIED PHYSICS,
1944,
15
(01)
:22
-32
[34]
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[J].
ZIENKIEWICZ, OC
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POLYTECH BARCELONA, BARCELONA, SPAIN
HEINRICH, JC
.
INTERNATIONAL JOURNAL FOR NUMERICAL METHODS IN ENGINEERING,
1981,
17
(10)
:1497
-1514
[35]
[No title captured]
←
1
2
3
4
→