| STRAIN REGULARITY IN REINFORCERS OF SHORT-FIBER/ WHISKER REINFORCED COMPOSITE AND ITS APPLICATION |
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| 作者姓名： | WANG Nai-peng LIU Qiu-yun LIU Xiao-yu |
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| 作者单位： | State Key Laboratory of Nonlinear Mechanics LNM, Institute of Mechanics, CAS,Beijing 100080, China |
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| 基金项目： | 中国科学院资助项目，中国科学院资助项目，中国博士后科学基金，19872065;19732060，KJ951-1-201，，，， |
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| 摘 要： | Based on the study of strain distribution in short-fiber/whisker reinforced metal matrix composites, a deformation characteristic parameter λ is defined as the ratio of the root-mean-square strain of reinforcers to the macro-linear strain along the same direction. Quantitative relation between λ and microstructure parameters of the composite is obtained. As an example of applying and verifying λ, the stress-strain curve of AlBO]w/Al composite under tensile loading is predicted and favorably compared with experiments. By using λ, the stiffness modulus of the composite with arbitrary reinforcer orientation under any loading condition is predicted from the microstructure parameters of material.
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| 关 键 词： | short-fiber/whisker reinforced composite strain distribution stiffness prediction |
STRAIN REGULARITY IN REINFORCERS OF SHORT-FIBER/ WHISKER REINFORCED COMPOSITE AND ITS APPLICATION |
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| WANG Nai-peng,LIU Qiu-yun,LIU Xiao-yu.STRAIN REGULARITY IN REINFORCERS OF SHORT-FIBER/ WHISKER REINFORCED COMPOSITE AND ITS APPLICATION[J].Chinese Journal of Aeronautics,2000,13(4):204-210. |
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| Authors: | WANG Nai-peng LIU Qiu-yun LIU Xiao-yu |
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| Abstract: | Based on the study of strain distribution in short-fiber/whisker reinforced metal matrix composites, a deformation characteristic parameter λ is defined as the ratio of the root-mean-square strain of reinforcers to the macro-linear strain along the same direction. Quantitative relation between λ and microstructure parameters of the composite is obtained. As an example of applying and verifying λ, the stress-strain curve of AlBO]w/Al composite under tensile loading is predicted and favorably compared with experiments. By using λ, the stiffness modulus of the composite with arbitrary reinforcer orientation under any loading condition is predicted from the microstructure parameters of material. |
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| Keywords: | short fiber/whisker reinforced composite strain distribution stiffness prediction |
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