材料
Online ISSN : 1880-7488
Print ISSN : 0514-5163
ISSN-L : 0514-5163
平板状試験片を使用する引張-圧縮二軸試験機の試作
芳我 攻林 則行粕谷 一雄
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ジャーナル フリー

1975 年 24 巻 263 号 p. 776-782

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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.

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