Indexed by:期刊论文
Date of Publication:2013-04-01
Journal:OPTICS AND LASERS IN ENGINEERING
Included Journals:SCIE、EI
Volume:51
Issue:4
Page Number:358-363
ISSN No.:0143-8166
Key Words:Bridging fiber; Interfacial stress transfer; Micro-Raman spectroscopy
Abstract:Micromechanics of bridging fiber/crack interaction were investigated by micro-Raman spectroscopy. The stress distribution on a bridging fiber was measured point-by-point using micro-Raman spectroscopy. The interaction between the crack and bridging fiber was discussed and a bridging fiber stress transfer model was established. A reverse sliding of the bridging fiber within the debonded zone was gradually converted to a forward sliding during reloading and at last the bridging fiber was wholly reloaded. It is noted that the stress on the bridging fiber distributed uniformly and a fiber bridging zone is isolated from the fiber debonded zone in the new model. The interfacial friction does not work within the bridging fiber length so that the bridging fiber stress remains a constant. (C) 2012 Elsevier Ltd. All rights reserved.
Professor
Supervisor of Doctorate Candidates
Supervisor of Master's Candidates
Gender:Male
Alma Mater:Dalian University of Technology (DUT)
Degree:Doctoral Degree
School/Department:State Key Laboratory of Industrial Equipment for Structral Analysis, Department of Engineering Mechanics
Discipline:Solid Mechanics. Applied and Experimental Mechanics. Engineering Mechanics. Mechanical Manufacture and Automation. Vehicle Engineering. Aerospace Mechanics and Engineering. mechanics of manufacturing process
Business Address:Room 321, Department of Engineering Mechanics
Contact Information:Tel.: 86 0411-84708406 Email: leizk@dlut.edu.cn
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