Title: Estimation of the effective notch root stresses and strains for plate with opposite U-shaped notches by nonlinear analysis
Authors: Vinayak H. Khatawate; M.A. Dharap; R.I.K. Moorthy
Addresses: Department of Mechanical Engineering, VJTI, Matunga, Mumbai – 400019, India; Pillai College of Engineering, Navimumbai – 410206, India ' Department of Mechanical Engineering, VJTI, Matunga, Mumbai – 400019, India ' Department of Mechanical Engineering, Pillai College of Engineering, Navimumbai – 410206, India
Abstract: In this paper evaluation of realistic stresses and strains at the notch root for plate with U-shaped opposite side notches with shallow and deep notched geometry using nonlinear finite element analysis (NLFEA) is presented. The paper also focuses on the prediction of local stresses and strains on the notched specimens by notch stress-strain conversion (NSSC) rules viz, Neuber's rule and equivalent strain energy density (ESED) method. The results of linear finite element analysis (LFEA) are used for the assessment of the inelastic stresses and strains by NSSC rules. The accuracy of the result is assessed by comparing results with NLFEA.
Keywords: notch; Neuber's rule; equivalent strain energy density; ESED; nonlinear finite element analysis; NLFEA; notch root stress; notch root strain; notch stress-strain conversion; NSSC rules.
International Journal of Design Engineering, 2016 Vol.6 No.4, pp.326 - 350
Received: 29 Nov 2015
Accepted: 19 Nov 2016
Published online: 21 Apr 2017 *