THERMAL EFFECTIVE STRESS-CONCENTRATION PROBLEMS IN METAL COMPOSITES

NCUIR > Engineering College > Graduate Institute of Mechanical Engineering > journal & Dissertation > Item 987654321/27145

Please use this identifier to cite or link to this item: http://ir.lib.ncu.edu.tw/handle/987654321/27145

Title:	THERMAL EFFECTIVE STRESS-CONCENTRATION PROBLEMS IN METAL COMPOSITES
Authors:	LEE,S;PAN,HM;WOLFENSTINE,J
Contributors:	機械工程學系
Keywords:	N/A
Date:	1992
Issue Date:	2010-06-29 18:08:54 (UTC+8)
Publisher:	中央大學
Abstract:	Four examples of the fracture of metal composites are presented. After analysis, it is revealed that the cause of fracture can be attributed to high tensile stress concentration at free boundaries of the metal composite. The tensile stress concentration arises as a result of vastly different thermal expansion (or contraction) properties between the component materials of the composite. As the composite cools from high temperature (where residual stress is negligible) to room temperature, the component materials in the composite tend to contract differently so that tensile stress concentration is created. The fracture examples also demonstrate that high tensile stress concentration can be devastating to high hardness, brittle materials.
Relation:	COMPOSITES SCIENCE AND TECHNOLOGY
Appears in Collections:	[Graduate Institute of Mechanical Engineering] journal & Dissertation

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