Simulation of residual stress measuring process in a fiber material cylinder using slitting method

In order to measure the residual stress in fiber material more conveniently by strain gauge, A measurement scheme based on slitting method and finite element simulation is proposed in this paper. The measurement models with different crack depth are established, and the influence of the distance fro...

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Bibliographic Details
Published in:IOP conference series. Materials Science and Engineering 2019-04, Vol.490 (2), p.22082
Main Authors: Hu, Xiaoyi, Liu, Dalie
Format: Article
Language:English
Subjects:
Cylinders
Finite element method
Foils
Residual stress
Simulation
Slitting
Strain analysis
Strain gauges
Stress concentration
Stress distribution
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Summary:In order to measure the residual stress in fiber material more conveniently by strain gauge, A measurement scheme based on slitting method and finite element simulation is proposed in this paper. The measurement models with different crack depth are established, and the influence of the distance from crack to strain foil are also investigated. In addition, the residual stress field is estimated by temperature-stress field analogy. Simulation results show that the distance from strain gauge to crack should better be between 0.3 and 0.5 times of the cylinder radius. By counting the difference between different stress-depth curves of the crack slitting, the inner stress in the cylinder with non-uniform stress distribution can be evaluated.
ISSN:1757-8981
1757-899X
1757-899X
DOI:10.1088/1757-899X/490/2/022082