caa a22 4500 465751172 CHVBK 20180323111834.0 cr unu---uuuuu 170327e19900601xx s 000 0 eng 10.1007/BF02410244 doi (NATIONALLICENCE)springer-10.1007/BF02410244 Scattered-light determination of mode I stress-intensity factors by a fringe gradient independent technique [Elektronische Daten] [A. Segall, J. Conway Jr.] Integration of the scattered-light stress-optic law and established bending and singular crack-tip relationships yielded new experimental equations for calibration and for the determination of mode I stress-intensity factors which are independent of a stress-fringe gradient. Scattered-light stressoptic coefficients determined from four-point bending tests and an integrated scattered-light bending equation show good agreement with values based on stress-fringe gradients computed with polynomials. Excellent agreement was also shown between mode I stress-intensity factors predicted by the integrated stress-optic equation and analytical solutions available in the literature. Favorable comparisons were also made with predictions based on a polynomial-finite-difference method of determining a stress-fringe gradient. Analyses were limited to flaw geometries and locations where there was minimal rotation of the refraction tensor. Society for Experimental Mechanics, Inc., 1990 Segall A. Center for Advanced Materials, 16802, University Park, PA aut Conway Jr. J. The Pennsylvania State University, 16802, University Park, PA aut Experimental Mechanics Kluwer Academic Publishers 30/2(1990-06-01), 173-176 0014-4851 30:2<173 1990 30 11340 https://doi.org/10.1007/BF02410244 text/html Onlinezugriff via DOI 1 research-article jats NATIONALLICENCE 856 40 https://doi.org/10.1007/BF02410244 text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- Segall A. Center for Advanced Materials, 16802, University Park, PA aut NATIONALLICENCE 700 1- Conway Jr J. The Pennsylvania State University, 16802, University Park, PA aut NATIONALLICENCE 773 0- Experimental Mechanics Kluwer Academic Publishers 30/2(1990-06-01), 173-176 0014-4851 30:2<173 1990 30 11340 Metadata rights reserved Springer special CC-BY-NC licence nationallicence BK010053 XK010053 XK010000 NATIONALLICENCE NATIONALLICENCE NL-springer