The evaluation of J-integral from experimental data requires the and γ functions. However, these functions are available for limited geometry in the literature. In this paper, limit-load-based general expressions of and γ functions have been derived. These general expressions are then utilized to derive the and γ functions for through-wall circumferentially/axially cracked elbows under in-plane bending moment which are not available in the literature. The functions are then applied to generate J-R curves from fracture experiments of elbows. Finite element analyses of the tested elbows are also described in the paper.
J-R Curves From Through-Wall Cracked Elbow Subjected to In-Plane Bending Moment
Contributed by the Pressure Vessels and Piping Division for publication in the JOURNAL OF PRESSURE VESSEL TECHNOLOGY. Manuscript received by the PVP Division, March 13, 2001; revised manuscript received July 30, 2002. Associate Editor: D. P. Jones.
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Chattopadhyay, J., Pavankumar , T. V., Dutta , B. K., and Kushwaha, H. S. (January 31, 2003). "J-R Curves From Through-Wall Cracked Elbow Subjected to In-Plane Bending Moment ." ASME. J. Pressure Vessel Technol. February 2003; 125(1): 36–45. https://doi.org/10.1115/1.1511518
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