三次元複合材料の強度解析

抄録

We propose a strength analysis method for three-dimensionally fiber-reinforced composite materials. The analysis is based on a stress averaging method for the individual mechanical properties of fiber and matrix assuming a homogeneous orthotropic solid for the 3D composite. Using the fundamental formula for Young's modulus derived by the stress averaging method, the strength analysis procedures are discussed. The tensile stress analysis is executed for a five-axis woven carbon/epoxy 3-D composite, and their results are compared to the experimental data. The analytical results show comparatively good agreement with the experimental results.