Affiliation:
1. Department of Mechanical Engineering, Indian Institute of Technology Madras, Chennai—600036, India
Abstract
A method based on linear elastic finite element analysis is presented for stress field determination of elasto-plastic problems. Hencky’s total deformation theory is used to define effective material parameters, which are treated as spatial field variables and considered to be functions of final state of equilibrium stress and material properties. These effective material parameters are obtained in an iterative manner using strain-controlled projection method, arc-length method, and Neuber rule applied on experimental uniaxial tension test curve. Three problems of von Mises material are considered to illustrate the application of the proposed method: a thick-walled cylinder subjected to internal pressure characterized by general work-hardening behavior, a V-notch specimen subjected to remote tensile load having elastic-perfectly plastic behavior, and a rotating disk with material having elastic linear work-hardening behavior. Obtained results for all the cases are compared with standard nonlinear finite element results and are found to be in good agreement. [S0094-9930(00)00104-9]
Subject
Mechanical Engineering,Mechanics of Materials,Safety, Risk, Reliability and Quality
Reference12 articles.
1. Neuber, H.
, 1961, “Theory of Stress Concentration for Shear Strained Prismatical Bodies With Arbitrary Nonlinear Stress-Strain Law,” ASME J. Appl. Mech., 28, pp. 554–550.
2. Marcal, P. V., and King, I. P., 1967, “Elastic Plastic Analysis of Two-Dimensional Stress Systems by the F.E.M.,” Int. J. Mech. Sci., 9, pp. 143–155.
3. Yamada, Y., Yoshimura, N., and Sakurai, T., 1968, “Plastic Stress-Strain Matrix and Its Application for the Solution of Elastic-Plastic Problems by the Finite Element Method,” Int. J. Mech. Sci., 10, pp. 343–354.
4. Owen, D. R. J., and Hinton, E., 1980, Finite Elements in Plasticity: Theory and Practice, Pineridge Press Limited.
5. Seshadri, R.
, 1991, “The Generalized Local Stress-Strain (GLOSS) Analysis—Theory and Applications,” ASME J. Pressure Vessel Technol., 113, pp. 219–227.
Cited by
22 articles.
订阅此论文施引文献
订阅此论文施引文献，注册后可以免费订阅5篇论文的施引文献，订阅后可以查看论文全部施引文献