平板状試験片を使用する引張-圧縮二軸試験器の試作

概要

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A new type of biaxial testing machine utilizing flat specimens has been assembled to investigate the mechanical behaviours and failure strength of glass cloth reinforced plastics under a combined tension-compression biaxial stress state. This machine is composed of the tension and compression devices which have the mechanism of preventing shifting of the center of a specimen during biaxial test. The structure of this machine is described in the paper. The experimental results of failure strength of glass cloth reinforced plastics under a biaxial stress state are compared with those caluculated by using the interaction formula. The observed values were found not to agree well with the calculated results, and a criterion such as Hill's was not applicable to this case. From the consideration of the failure mode, some suggestions have been made to obtain the way to find a more exact failure criterion.
社団法人日本材料学会の論文
1975-08-15