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HERO ID
4711751
Reference Type
Journal Article
Title
Determining Stress-Strain in Rubber with In-Plane Biaxial Tensile Tester
Author(s)
Fujikawa, M; Maeda, N; Yamabe, J; Kodama, Y; Koishi, M
Year
2014
Is Peer Reviewed?
Yes
Journal
Experimental Mechanics
ISSN:
0014-4851
Volume
54
Issue
9
Page Numbers
1639-1649
DOI
10.1007/s11340-014-9942-7
Web of Science Id
WOS:000344149800012
Abstract
The nominal stress-strain relationships of industrial rubber materials under multiaxial deformation are essential for precisely determining the constitutive laws of those materials. This paper proposes a new method for precisely estimating the nominal stress-stretch relationships of carbon-black-filled styrene butadiene rubbers (SBRs) under uniaxial tension, pure shear, and equibiaxial tension by using an in-plane biaxial tensile tester. The proposed method employs sheet-shaped rubber samples with notches for the pure-shear and equibiaxial tension tests to mitigate the influence of non-uniform deformation around the clamps. Finite element analysis and biaxial tensile tests were performed to verify the effectiveness of the proposed method. Performance evaluations based on both numerical calculations and experiments revealed that the proposed method enabled the precise calculation of the nominal stress-stretch relationship for uniform deformation from a tensile load and deformation of the reference area defined at the center of the samples.
Keywords
Biaxial tensile test; Industrial rubber; Hyperelasticity; Finite element method
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