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EVOLUTION OF RANDOM MICROCRACKS IN WHISKER TOUGHENING CERAMIC MATRIX COMPOSITE MATERIALS

Li Wenfang(South China University of Technology,Guangzhou,510641)Du Shanyi(Harbin Institute of Technology,Harbin, 150006)  
The equivalent inclusion method and internal varable theory are employed to research the evolution of misoriented microcracks and their influence on the mechanic behaviours of whisker/ceramics composite materials. Meanwhile, the residual thermo-strain, the fraction and aspects of whiskers are considered and the effective modulus,the nonlinear initial load,strength and constitutive relation are estimated. Some important results are given.
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