平織クロスFRP板の曲げはく離解析(<小特集>強化プラスチック小特集)

概要

論文の詳細を見る
Reflecting its three dimensional fabrication and accompanied material anisotropy, the plane weave reinforced laminates was modelled as a combined structure composed of heterogeneous and homogeneous model units. Also, the debonding between warp and weft and the interlayer separation under the three point bending were analyzed by the FEM (Finite Element Method) supposing the critical adhesive strength between them. Numerical results that can well approximate the occurence of interlayer separation accompanying microcracks were obtained. And it was made clear that the primary factor bringing in the sudden decrease of bending load differed depending upon the stacking number of lamination. From the above results as well as the fact that the constituent model units can be selected as the needs of case demand, the quasi-microscopic analysis is considered to be an effective CAD (Computer Aided Design) method for the design of multi-plied or large sized composites.
1981-12-15