フィレット付きカーボンクロス積層試験片による層間強度試験法

概要

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This paper presents the deformation and interlaminar strength in the transverse direction of carbon cloth laminated plastics. To obtain the mechanical properties in the laminated direction, a method using laminated thin walled tube specimens with fillet was proposed. The stress distributions in various specimens with fillet under tensile and torsional loads were analyzed by the finite element method. The shape of the specimen with fillet having flat tensile stress distributions were in good agreement with experimental ones under a combined stress state of tensile and torsional loads. The interlaminar strength of CFRP specimens with fillet under a combined stress was approximately expressed by Hoffman's fracture criterion. The fracture conditions of the specimens under various loadings were occurred in the interlaminar directions of laminated carbon cloths.
一般社団法人日本機械学会の論文
1987-07-25