EXPERIMENTAL INVESTIGATION INTO PLASTIC DAMAGE OF MICROVOIDS WITH INTERACTION

A mechanism of plastic flow localization in ductile matter near mi-crovoids is studied.The voids with the size-scale of micromillimeter exist in sheetspecimens under tensile loading,and the plastic strain field around voids is obtainedby digital image processing of deformed grids.The size growth of...

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Bibliographic Details
Published inActa mechanica Sinica Vol. 13; no. 3; pp. 280 - 288
Main Author 方竞 倪受庸 杨宏伟 白树林 戴福隆
Format Journal Article
LanguageEnglish
Published 01.08.1997
Subjects
damage
field
flow
interaction
localization
plastic
strain
void
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ISSN0567-7718
1614-3116
DOI10.1007/bf02487710

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Summary:A mechanism of plastic flow localization in ductile matter near mi-crovoids is studied.The voids with the size-scale of micromillimeter exist in sheetspecimens under tensile loading,and the plastic strain field around voids is obtainedby digital image processing of deformed grids.The size growth of the microvoids,thespacing change of the neighboring voids,and the development of shear bands in theligament between the voids,are presented by experimental results accompanied withthe plastic strain distribution,that gives good interpretation to the process of voidgrowth and coalescence with the flow localization in the ligaments.
Bibliography:Fang Jing Ni Shouyong Yang Hongwei Bai Shulin Dai Fulong (Dept.of Mechanics & Engng.Science,Peking University,Beijing 100871,China)(Dept.of Engng.Mechanics,Tsinghua University,Beijing 100084,China)
11-2063/O3
ISSN:0567-7718
1614-3116
DOI:10.1007/bf02487710