Validation of Stress Concentration Factor and Estimation of Local Stresses Beyond Yield Point of the Material for Notched Specimens

6 Pages Posted: 12 Feb 2018

See all articles by Vinayak H. Khatawate

Vinayak H. Khatawate

University of Mumbai - Pillai College of Engineering

Medha Dharap

Veermata Jeejabai Technological Institute

R.I.K Moorthy

University of Mumbai - Pillai College of Engineering

Date Written: December 21, 2017

Abstract

In this paper, estimation of stresses at the notch root is reported for the three notched specimens using finite element analysis (FEA). Linear FEA is performed on the notches to evaluate stress concentration factor (Kt) and validated using Roark’s formulae. For the three specimens, nonlinear finite element analysis (NLFEA) is performed to evaluate local plastic stresses at the notch root and compared using notch stress strain conversion (NSSC) rules viz., Neuber’s rule and Equivalent strain energy density (ESED) approach. It is found that Neuber’s rule predicts better results of plastic stresses for flat specimens, whereas ESED predicts better results for cylindrical specimen.

Keywords: Neuber’s Rule; Equivalent Strain Energy Density (ESED); Finite Element Analysis (FEA); Stress Concentration Factor; Notch

Suggested Citation

Khatawate, Vinayak H. and Dharap, Medha and Moorthy, R.I.K, Validation of Stress Concentration Factor and Estimation of Local Stresses Beyond Yield Point of the Material for Notched Specimens (December 21, 2017). International Conference on Advances in Thermal Systems, Materials and Design Engineering (ATSMDE2017). Available at SSRN: https://ssrn.com/abstract=3101362 or http://dx.doi.org/10.2139/ssrn.3101362

Vinayak H. Khatawate (Contact Author)

University of Mumbai - Pillai College of Engineering ( email )

New Panvel
Navimumbai
Navi Mumbai, 410206
India

Medha Dharap

Veermata Jeejabai Technological Institute ( email )

Matunga, Mumbai, Maharashtra
India

R.I.K Moorthy

University of Mumbai - Pillai College of Engineering ( email )

New Panvel
Navimumbai
Navi Mumbai, 410206
India

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