Separation of Principal Stresses Using Blocked Boundary Element Method
The experimental method of photoelasticity has been widely applied to predict stress distribution in a model structure since the entire distribution can be observed visually. However, many elaborate techniques and much experience are required to obtain experimental results with a high degree of accuracy. Furthermore, it is fairly troublesome and difficult to determine principal stresses throughout the model. Thus, the photoelastic method is not so commonly used, while numerical procedures have been broadly adopted for stress analysis.
KeywordsPrincipal Stress Boundary Element Boundary Element Method internaL Point Isochromatic Fringe
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