There are several simplified methods, known as notch stress-strain conversion (NSSC) rules that provide an approximate formula to relate local elastic-plastic stresses and strains at the notch root to those estimated elastically. This paper investigates a unified approach that estimates nonlinear and history dependent stress-strain behavior of the notches using the conventional NSSC rules. A nonlinear interpolation method is adopted to estimate the elastic-plastic stress and strain at notches. A comparison is made between the finite element results for several notch configurations (with and without three-dimensional effects) and those obtained from NSSC rules and the proposed formulation.
Unified Approach for Notch Stress Strain Conversion Rules
Contributed by the Pressure Vessel and Piping Division of ASME for publication in the Journal of Pressure Vessel Technology. Manuscript received July 12, 2012; final manuscript received January 28, 2013; published online June 11, 2013. Assoc. Editor: Wolf Reinhardt.
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Adibi-Asl, R., and Seshadri, R. (June 11, 2013). "Unified Approach for Notch Stress Strain Conversion Rules." ASME. J. Pressure Vessel Technol. August 2013; 135(4): 041203. https://doi.org/10.1115/1.4023731
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