Formation of adiabatic shear band in metal matrix composites

被引：32

作者：

Dai, LH ^{[1
]}

Liu, LF ^{[1
]}

Bai, YL ^{[1
]}

机构：

[1] Chinese Acad Sci, Inst Mech, State Key LNM, Beijing 100080, Peoples R China

来源：

INTERNATIONAL JOURNAL OF SOLIDS AND STRUCTURES | 2004年 / 41卷 / 22-23期

关键词：

D O I：

10.1016/j.ijsolstr.2004.05.023

中图分类号：

O3 [力学];

学科分类号：

08 ; 0801 ;

摘要：

A modified single-pulse loading split Hopkinson torsion bar (SSHTB) is introduced to investigate adiabatic shear banding behavior in SiCp particle reinforced 2024 Al composites in this work. The experimental results showed that formation of adiabatic shear band in the composite with smaller particles is more readily observed than that in the composite with larger particles. To characterize this size-dependent deformation localization behavior of particle reinforced metal matrix composites (MMCp), a strain gradient dependent shear instability analysis was performed. The result demonstrated that high strain gradient provides a deriving force for the formation of adiabatic shear banding in MMCp. (C) 2004 Elsevier Ltd. All rights reserved.

引用

页码：5979 / 5993

页数：15

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