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期刊论文

Necessary conditions of internal necking between microvoids in ductile materials*

宁建国NING Jianguo and HUANG Zhuping

PROGRESS IN NATURAL SCIENCE 1998. 6: 726~732,-0001,():

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摘要/描述

Under the action of external loads, the critical condition of fracture in ductile materials is closely re-lated to the strong interactions among internal microdefects at the later stage of deformation. By means of Riemann's analytical integration, necessary conditions for the internal necking between adjacent elliptical voids under plane strain conditions are studied. The influences of the aspect ratio of elliptical voids, the distance between two voids, and the angle of the straight line connecting the central points of two voids with respect to the tensile direction on the above-mentioned necessary conditions are also discussed.

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