SYMPOSIA PAPER Published: 01 January 1997

An Efficient Method for Calculating Multiaxial Elasto-Plastic Notch Tip Strains and Stresses under Proportional Loading


A method for calculating elasto-plastic notch tip strains and stresses in bodies subjected to proportional multiaxial loading is presented. Notch tip strains and stresses are estimated using the generalized Neuber's rule and equivalent strain energy density method. These estimates form upper and lower bounds of the exact solution. All necessary relationships in the form of five simultaneous algebraic equations are derived for a general multiaxial stress state. An efficient solution method is proposed enabling fast calculation of numerical values and the choice of the appropriate solution. This method may be particularly useful for fatigue analysis of notched components.

Author Information

Reinhardt, W
Nuclear Engineering, Babcock & Wilcox International, Cambridge, Ontario, Canada
Moftakhar, A
Nuclear Engineering, Babcock & Wilcox International, Cambridge, Ontario, Canada
Glinka, G
University of Waterloo, Waterloo, ON, Canada
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Developed by Committee: E08
Pages: 613–629
DOI: 10.1520/STP16258S
ISBN-EB: 978-0-8031-5355-4
ISBN-13: 978-0-8031-2412-7