新開発の引張・ねじり2軸ひずみ計による高分子材料の応力-ひずみ曲線

概要

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In order to investigte a constitutive law for various materials,many combined tension-torsion tests have been performed at complex strain paths.During these tests,it is more defficult to measere the axial and the shear strain simultaneously than to obtain the load and the torque.Although some instruments to measure both strains have been deviced,these are considerably large in comparison with the specimen dimensions,and therefore,it may be difficult to attach them briefly to the cylindrical specimen.In this paper,a small-sized biaxial strain meter was mewly developed to measure the axial and shear strains.The stress-strain curves were measured for solid polymers by use of the new meter and were compared with the numerical computation of an overstress theory.
社団法人日本材料学会の論文
1993-09-15