HIGH-RESOLUTION 2-DIMENSIONAL SHEAR-BAND COMPUTATIONS - IMPERFECTIONS AND MESH DEPENDENCE

被引：50

作者：

BELYTSCHKO, T ^{[1
]}

CHIANG, HY ^{[1
]}

PLASKACZ, E ^{[1
]}

机构：

[1] ARGONNE NATL LAB, DIV COMP & TELECOMMUN, ARGONNE, IL 60439 USA

来源：

COMPUTER METHODS IN APPLIED MECHANICS AND ENGINEERING | 1994年 / 119卷 / 1-2期

关键词：

D O I：

10.1016/0045-7825(94)00073-5

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

Very fine meshes, up to 64000 elements with 5 to 10 elements across a shear band, are used to study dynamic shear band formation in viscoplastic plane-strain specimens under compression. Imperfections are shown to have a crucial effect on shear band structure; they determine the size and location of the shear band. A transition to a pattern of parallel shear bands is observed when the imperfection is reduced in size. It is also shown that the results are independent of element type or stabilization for early stages of localization but as the band narrows in the latter stages, element size and type have marked effects; this element and mesh dependence is attributed to insufficient resolution.

引用

页码：1 / 15

页数：15

共 20 条

[1] ONSET OF SHEAR LOCALIZATION IN VISCOPLASTIC SOLIDS [J].

ANAND, L ;

KIM, KH ;

SHAWKI, TG .

JOURNAL OF THE MECHANICS AND PHYSICS OF SOLIDS, 1987, 35 (04) :407-&

[2] ADIABATIC SHEAR BANDING IN ELASTIC-VISCOPLASTIC NONPOLAR AND DIPOLAR MATERIALS [J].

BATRA, RC ;

KIM, CH .

INTERNATIONAL JOURNAL OF PLASTICITY, 1990, 6 (02) :127-141

[3] A FINITE-ELEMENT WITH EMBEDDED LOCALIZATION ZONES [J].

BELYTSCHKO, T ;

FISH, J ;

ENGELMANN, BE .

COMPUTER METHODS IN APPLIED MECHANICS AND ENGINEERING, 1988, 70 (01) :59-89

[4] THE SPECTRAL OVERLAY ON FINITE-ELEMENTS FOR PROBLEMS WITH HIGH GRADIENTS [J].

BELYTSCHKO, T ;

FISH, J ;

BAYLISS, A .

COMPUTER METHODS IN APPLIED MECHANICS AND ENGINEERING, 1990, 81 (01) :71-89

[5] ON THE CRUCIAL ROLE OF IMPERFECTIONS IN QUASI-STATIC VISCOPLASTIC SOLUTIONS [J].

BELYTSCHKO, T ;

MORAN, B ;

KULKARNI, M .

JOURNAL OF APPLIED MECHANICS-TRANSACTIONS OF THE ASME, 1991, 58 (03) :658-665

[6] FINITE-ELEMENT ANALYSIS ON THE CONNECTION MACHINE [J].

BELYTSCHKO, T ;

PLASKACZ, EJ ;

KENNEDY, JM ;

GREENWELL, DL .

COMPUTER METHODS IN APPLIED MECHANICS AND ENGINEERING, 1990, 81 (02) :229-254

[7]

Belytschko T., 1991, Computing Systems in Engineering, V2, P269, DOI 10.1016/0956-0521(91)90027-3

[8] ELEMENTS WITH EMBEDDED LOCALIZATION ZONES FOR LARGE DEFORMATION PROBLEMS [J].

FISH, J ;

BELYTSCHKO, T .

COMPUTERS & STRUCTURES, 1988, 30 (1-2) :247-256

[9] A UNIFORM STRAIN HEXAHEDRON AND QUADRILATERAL WITH ORTHOGONAL HOURGLASS CONTROL [J].

FLANAGAN, DP ;

BELYTSCHKO, T .

INTERNATIONAL JOURNAL FOR NUMERICAL METHODS IN ENGINEERING, 1981, 17 (05) :679-706

[10]

Nagtegaal J. C., 1974, Computer Methods in Applied Mechanics and Engineering, V4, P153, DOI 10.1016/0045-7825(74)90032-2

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