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Title: 散乱光法によるねじりを受けるポリエステルのひずみ速度の影響を考慮した光粘弾塑性解析法
Other Titles: Photovisco-Elasto-Plastic Analysis Considering Strain Rate Effect on Polyester under Torsion by Scattered-Light Method
Authors: 平野, 貞三 / 林, 佳彦 / 今井, 康文
Authors (alternative): Hirano, Teizo / Hayashi, Yoshihiko / Imai, Yasufumi
Issue Date: 15-Feb-1995
Publisher: 日本材料学会 / The Society of Materials Science, Japan
Citation: 材料, 44(497), pp.213-218; 1995
Abstract: Three-dimensional photovisco-elasto-plastic analysis considering strain rate effect was investigated by a scattered-light method using polyester as a model material. In order to examine the mechanical and optical properties of polyester, torsion tests were carried out on solid shafts under various twisting rates at 30℃ and the effects of strain rate on the shearing stress, shearing strain, fringe gradient and increasing rate of fringe gradient were investigated. Regardless of the strain rate, it was found that the shearing stress-strain relation can be expressed by a Ramberg-Osgood equation and the fringe gradient-shearing strain relation was successfully represented by a nondimensional equation. Finally, the relation between the fringe gradient and its increasing rate was formulated as a function of strain rate. From these results, we established a method to estimate the shearing stress and the shearing strain in a three-dimensional model only by measuring the finge gradient and its increasing rate. The calculated torques from the shearing stress estimated by this photovisco-elasto-plastic analysis were consistent with the applied torques on solid and hollow shafts.
Keywords: Experimental stress analysis / Photovisco-elasto-plasticity / Polyester / Scattered-light method / Torsion / Shearing strain rate / Fringe gradient-shearing strain relation
URI: http://hdl.handle.net/10069/24659
ISSN: 05145163
Rights: Copyright© 日本材料学会
Type: Journal Article
Text Version: publisher
Appears in Collections:Articles in academic journal

Citable URI : http://hdl.handle.net/10069/24659

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