Effects of graded porous structure on local strain distribution under compression in silicone rubber

被引：3

作者：

Yoshimura, Keijiro ^{[1
]}

Nakano, Kazunori ^{[1
]}

Nishiwaki, Takeshi ^{[2
]}

Iwama, Yuki ^{[1
]}

Murata, Masanobu ^{[1
]}

机构：

[1] Nagoya Municipal Ind Res Inst, Atsuta Ku, Nagoya, Aichi 4560058, Japan

[2] Daido Univ, Dept Mech Engn, Minami Ku, Nagoya, Aichi 4578530, Japan

来源：

JOURNAL OF POLYMER SCIENCE PART B-POLYMER PHYSICS | 2019年 / 57卷 / 16期

关键词：

compression; graded structure; local strain; porous material; rubber; stress; FABRICATION; COMPOSITE;

D O I：

10.1002/polb.24857

中图分类号：

O63 [高分子化学（高聚物）];

学科分类号：

070305 ; 080501 ; 081704 ;

摘要：

Silicone rubber samples with gradually changing pore sizes within the range of 70-610 mu m are produced using an improved spacer method. The samples are scanned using an X-ray computed tomography to evaluate their graded structure as compared to uniform rubber. A compressive test reveals that graded porous silicone rubber has characteristic stress-strain curves whose slope changes within a specific strain range depending on the porous structure. Analysis results of local strain based on a digital image correlation of the graded porous silicone rubber under compression demonstrate that the characteristic stress-strain properties are caused by shifts in the main deformation region in the graded structure. (c) 2019 Wiley Periodicals, Inc. J. Polym. Sci., Part B: Polym. Phys. 2019, 57, 1033-1042

引用

页码：1033 / 1042

页数：10

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