C/C複合材料のピン継手強度

概要

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Pin joint strength of laminate type C/C composites was experimentally determined as functions of the diameter and position of the pin hole. Three types of laminate, (0°/90°), (±45°), and (0°/90°/±45°) were examined. It was found from the comparison between predicted and observed stress distributions that the effect of stress concentration around the pin hole on the pin joint strength was quite low for the C/C joint, when tensile or shear modes of failure appeared. On the other hand for the case of compressive failure maximum stress criterion can be adapted except for the ±45°laminate. By use of these fracture criteria, a design procedure of C/C pin joint is proposed and it is demonstrated that the pin joint strength of C/C composites can be precisely predicted based on tensile, compressive and shearing strength of smooth specimen.
一般社団法人日本機械学会の論文
1997-07-25