Linear and Nonlinear Algorithms for Stress Separation in Photoelasticity

Experimental–numerical hybrid stress analysis for a curving crack in a thin glass plate under thermal load

“…Therefore, various methods have long been studied for stress separation in photoelasticity [26]. In this study, a photoelastic-finite element hybrid method [25] is introduced for obtaining the stress components. Fig.…”

“…It is considered that the analysis of the full field stress component distribution helps further understanding of the crack behavior. An experimental-numerical hybrid method proposed by one author [25] is used for evaluating the full-field stress distributions. In this method, the principal stress difference and the principal direction in the local area around a crack are obtained using phase-stepping photoelasticity.…”

Numerical-experimental hybrid method for stress separation in digital gradient sensing method

“…And the other two methods are also impracticable due to their different measurement theories. On the other hand, several hybrid methods of photoelasticity and numerical analysis [20][21][22], and inverse analysis methods have also been proposed for the stress separation. Berghaus [20] provides a hybrid method with photoelasticity and Finite-element combined, from which displacements along free surfaces and axes of symmetry are obtained from photoelasticity and then perform the finite element method to get stress components.…”

Photoelastic‐numerical treatment of Beltrami‐Michell boundary value problems

“…This aimed ability is achieved by combining isochromatic information on the boundaries, the Beltrami-Michell equations and the FDM into an effectual hybrid method for stress analysis. The present hybrid technique simultaneously smoothes the recorded isochromatic data, to provide reliable information in each boundary point, by determining the stress tensor components within the boundaries of interest (Yoneyama et al [9,10]). However, the FDM is the numerical backbone of the present hybrid method.…”