引張試験片の絞り部の応力分布に及ぼす弾性変形の影響

概要

論文の詳細を見る
The stress system at the neck of a round tension test specimen is analysed by Bridgman and Davidenkov et al. by ignoring the elastic strain components. In this paper the effect of elastic strain on this stress system is discussed. The problem is linearlized for the sake of simplicity. It is confirmed that at the neck, unlike the results hitherto published, the radial and circumferential stresses are not equal to each other. The effect, however, of elastic strain on the maximum axial stress which occurs at the centre of the neck is small so long as the radius of curvature in the region of the neck is large. Referring to the experiment of Parker et al., who discussed experimentally the stresses at the neck after necking begins, it it suggested that the plastic strain in the portion of the neck will be uneven over the cross-section.
一般社団法人日本機械学会の論文
1957-07-25