Showing papers by "K. Ramesh published in 2004"
TL;DR: A new method is developed to remove ambiguity in the phase map using isoclinic–isochromatic interaction and a flexible algorithm for phase unwrapping is developed using tiling.
34 citations
TL;DR: In this article, the use of two digital photoelasticity methods for collecting these data is discussed and SIFs are evaluated using constant radius method and a least squares approach based on the singular stress field equation.
Abstract: The main sources of error in the determination of stress intensity factors (SIFs) for an interface crack in a bi-material by conventional photoelasticity are the measurement of the positional co-ordinates of the data point and the fringe order. In the present work, use of two digital photoelasticity methods for collecting these data is discussed. SIFs are evaluated using constant radius method and a least squares approach based on the singular stress field equation. The need for developing a multi-parameter stress field solution for evaluating SIF is highlighted.
4 citations