延性金属材料の大きな歪範囲にわたる応力-歪曲線の求め方について

概要

論文の詳細を見る
Various testing methods to obtain tensile and compressive stress-strain curves of ductile metals for large strain region, together with their results are compared and discussed in this paper. Special attention is paid for testing thin strips. The main conclusions are as follows : 1) In general, the tensile stress-strain curve plotted against logarithmic strain differs more or less from the compressive curve. 2) The approximate tensile stress-strain curve is obtained easily by the use of n power law for most cases. 3) Tension test of thin strip after prestraining by two-dimensional compression is more preferable than by rolling. 4) Compression tests with annular and laminated specimen are 'suggested to obtain the compressive curve of thin strip for the direction parallel and perpendicular to the surface respectively.
宇宙航空研究開発機構の論文
1954-07-30