| 摘要 |
PROBLEM TO BE SOLVED: To provide a method of computing a material constant of a composite material and a method of computing the volume fraction of a material in the composite material, for more efficient computation in a shorter period of time than the conventional computational method using a finite element model. SOLUTION: In the method of computing the material constant of the composite material, a virtual composite material is defined as the one having outer shell layers constituted by coating with a second material around each of inner spherical particles of first material dispersed in a matrix phase, and a nonlinear equation is prepared, which has the effective material constant of the virtual composite material as an unknown. Next, the material constant of the virtual composite material is computed by solving the equation. In the equation, the material constant in each of the surrounding areas of the outer shell layers is defined as an effective material constant of the virtual composite material to be computed. The volume fractions of the materials in the composite material are computed using the equation. COPYRIGHT: (C)2011,JPO&INPIT
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