Showing papers by "K. Ramesh published in 2019"
TL;DR: In this article, the authors used the corrected Atluri-Kobayashi multiparameter stress field equation in conjunction with the over-deterministic least squares method to determine the stress intensity factor (SIF) for a single central crack in a cruciform specimen, when the biaxial ratio is increased from 0 to 1, only shielding is observed.
38 citations
01 Jan 2019
TL;DR: In this paper, the use of theoretical calibration table for fringe pattern demodulation in isochromatic images is revisited and a sensitivity analysis of material stress fringe value to generate theoretical calibration tables is studied.
Abstract: The use of theoretical calibration table for fringe pattern demodulation in isochromatic images is revisited and a sensitivity analysis of material stress fringe value to generate theoretical calibration table is studied. The influence of filter parameter ‘R’ in normalization is discussed and its nuances are brought out. A substitution for theoretical calibration table and a new normalization technique is proposed to alter the dynamic range over the entire model domain of the isochromatic image suitably.
5 citations