Hypersonic Velocities and Submicrocrack Formation in Ductile Polymers under Uniaxial Tensile Stress
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概要
- 論文の詳細を見る
Longitudinal hypersonic sound velocities in two kinds of ductile polymer, polycarbonate (PC) and polyethylene terephthalate (PET), were examined by Brillouin scattering. These two materials exhibited a decrease in hypersonic sound velocity (the softening phenomenon) when stress was applied, but the amount of softening as well as its angular dependence with respect to the stress direction were much smaller than those for a typical brittle polymer, poly (methyl methacrylate) (PMMA). Furthermore, a correlation between these acoustic properties and the formation of submicrocracks was demonstrated by small-angle X-ray scattering (SAXS) measurements. The difference in the anisotropies in the softening of sound velocity between ductile and brittle polymers is discussed from the viewpoint of the shape and density of the submicrocracks
- 社団法人応用物理学会の論文
- 1984-07-20
著者
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NISHIMURA Kazuhiro
Department of Electrical & Electronic Engineering, Toyohashi University of Technology
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Shirouzu Shigenori
Central Research Laboratories Idemitsu Kosan Co. Ltd.
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Matsushige Kazumi
Department Of Applied Science Faculty Of Engineering Kyushu University
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Shichijyo S
Mitsui Chemicals Inc.
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Shirouzu S
Health Sci. Foundation Moa. Fukuoka Jpn
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Shichijyo Shiro
Department Of Applied Science Faculty Of Engineering Kyushu University
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TAKEMURA Tetuo
Ariake National College of Technology
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SHIROUZU Shigenori
Department of Applied Science, Faculty of Engineering, Kyushu University
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Nishimura Kohsuke
Kdd R&d Laboratories
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Takemura T
Ariake National College Of Technology
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Takemura Tetuo
Department Of Applied Physics Faculty Of Engineering Kyushu University
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Nishimura Kazuhiro
Department Of Applied Science Faculty Of Engineering Kyushu University
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