Micromechanics of fiber-crack interaction:bridging fiber

【Author】

Zhenkun Lei;Quan Qang;Wei Qiu;Libo Deng;

【Abstract】

<正>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 reload-

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