Open AccessNonlinear algorithms of residual stresses reconstruction for axisymmetric problem
Author(s) -
Donghai Chen,
Qinghua Tian,
Xun Zhang,
Juntong Yun
Publication year - 2020
Publication title -
iop conference series. materials science and engineering
Language(s) - English
Resource type - Journals
eISSN - 1757-899X
pISSN - 1757-8981
DOI - 10.1088/1757-899x/744/1/012040
Subject(s) - photoelasticity , rotational symmetry , residual stress , cylinder , residual , nonlinear system , stress (linguistics) , materials science , optics , mechanics , mathematics , algorithm , geometry , physics , composite material , solid mechanics , linguistics , philosophy , quantum mechanics
A non-destructive testing method for three-dimensional stress of a glass cylinder based on photoelasticity is presented. Based on simulated stresses in the glass cylinder, intensity images output from a circular polariscope are calculated by Jones calculus. Therefore, the isoclinic angle and optical retardation can be simulated. Then the residual stresses in the glass cylinder can be reconstructed in cylindrical coordinates. By comparing the reconstructed stresses with numerical simulated stresses, there is good agreement but with some mismatches.