| A STUDY OF INTERFACES OF COMPOSITES BY MEANS OF OPTICAL FIBRE SENSING TECHNTIQUE |
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| 作者姓名： | 闻荻江 孙成林 周崇华 |
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| 作者单位： | Department of Material Science，Wuhan University of Technology，Department of Material Science，Wuhan University of Technology，Department of Material Science，Wuhan University of Technology |
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| 摘 要： | Fibre stress of glass fibre reinforcedpolymeric copmosites on load is determined byusing optical fibre as model fiber and bymeans of laser interference method.Inaddition,the origination of fibre stressduring moulding process of composites andthe relation between fiber stress of loadedcomposites and external stress are examined.The experiments show that fibre stress isrelated to molecular structure of interfacialmaterials and structure of inter facial layers.When stress is transferred from matrix tofibre,each interfacial layer has differentstress gradient and deformability.Thisproperty can be characterized by introducingan interfacial stress transfer coefficient k tothe two-phase model.
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A STUDY OF INTERFACES OF COMPOSITES BY MEANS OF OPTICAL FIBRE SENSING TECHNTIQUE |
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| Wen Dijiang Sun Chenglin Zhou Chonghua.A STUDY OF INTERFACES OF COMPOSITES BY MEANS OF OPTICAL FIBRE SENSING TECHNTIQUE[J].Journal of Wuhan University of Technology. Materials Science Edition,1992(4). |
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| Authors: | Wen Dijiang Sun Chenglin Zhou Chonghua |
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| Affiliation: | Wen Dijiang Sun Chenglin Zhou Chonghua Department of Material Science,Wuhan University of Technology |
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| Abstract: | Fibre stress of glass fibre reinforced polymeric copmosites on load is determined by using optical fibre as model fiber and by means of laser interference method. In addition, the origination of fibre stress during moulding process of composites and the relation between fiber stress of loaded composites and external stress are examined. The experiments show that fibre stress is related to molecular structure of inter facial materials and structure of inter facial layers. When stress is transferred from matrix to fibre, each inter facial layer has different stress gradient and deformability. This property can be characterized by introducing an inter facial stress transfer coefficient k to the two-phase model. |
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| Keywords: | interface composites stress transfer optical fibre laser interference method |
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