Dynamic Compressive Test for Determining Stress-Strain Relation of Material

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概要

• 論文の詳細を見る

• An experimental method of determining the dynamic stress-strain relation of materials and the results of tests on specimens of annealed copper are reported in this paper. 1) Remarkable stress drops after the dynamic yield stress were observed in the stress-strain curves of copper in a certain range of strain rates. 2) The stress near the impact end of the specimen should be considered as three dimensional. In practice, however, if the ratio of specimen diameter to pulse length is reduced sufficiently, uniaxial stress state should be realized, so that this method can be employed to determine the dynamic characteristic of materials. Furthermore, a constitutive equation of metal was proposed from the standpoint of relaxation phenomenon. But for a more reasonable description of the dynamic plastic behavior of metals it may be necessary to take the strain history into consideration.

• 一般社団法人日本機械学会の論文

著者

• Kishida Keizo

  Faculty Of Engineering Osaka University

• SENDA Kanae

  Kyoto Sangyo University

関連論文

• Finite Element Analysis of Dynamic Behavior of Viscoelastic Materials Using FFT
• Wave Propagation Analysis for Determining the Dynamic Properties of High Damping Alloys
• Dynamic Compressive Test for Determining Stress-Strain Relation of Material
• Dynamic Plastic Deformation of a Cantilever Struck Transversely at Its Tip

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