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

Xiaoyi Hu, Dalie Liu
2019 IOP Conference Series: Materials Science and Engineering  
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 temperaturestress field analogy. Simulation results show that the distance from strain gauge to
more » ... 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.
doi:10.1088/1757-899x/490/2/022082 fatcat:xjvsemqy5fdzrfhltrdocsv5sa