Affiliation:
1. Department of Mechanical Engineering, University of Waterloo, Waterloo, Ontario N2L 3E5, Canada
Abstract
Linear elastic solution of an axisymmetric boundary value problem is used as a basis to generate its inelastic solution. This method treats the material parameters as field variables. Their distribution is obtained as a part of solution in an iterative manner. Two schemes of updating material parameters are discussed and compared. A procedure for calculation of residual stress field is presented. Application of the method to autofrettage is presented. Residual stress calculation based on actual material curve, isotropic and kinematic hardening models, and variable Bauschinger effect factor (BEF) is carried out. It is concluded that consideration of dependency of BEF on plastic strain makes significant changes to residual hoop stress near the bore for low-level autofrettage. However, this dependency is insignificant for high-level autofrettage. Results obtained here are shown to be in good agreement with experimental and finite element results.
Subject
Mechanical Engineering,Mechanics of Materials,Safety, Risk, Reliability and Quality
Reference35 articles.
1. Bland, D. R., 1956, “Elasloplastic Thick-Walled Tubes of Work-Hardening Materials Subjected to Internal and External Pressure and Temperature Gradient,” Journal of the Mechanics and Physics of Solids, pp. 209–229.
2. Chaaban, A., Leung, K., and Burns, D. J., 1986, “Rsidual Stresses in Autofrettaged Thick-Walled, High Pressure Vessels,” ASME PVP-Vol. 110, pp. 55–60.
3. Chen
P. C. T.
, 1973, “A Comparison of Flow and Deformation Theories in a Radially stressed Annular Plate,” ASME Journal of Applied Mechanics, Vol. 40, pp. 283–287.
4. Chen
P. C. T.
, 1986, “The Bauschinger and Hardening Effect on Residual Stresses in an Autofrettaged Thick-Walled Cylinder,” ASME JOURNAL OF PRESSURE VESSEL TECHNOLOGY, Vol. 108, pp. 108–112.
5. Chen, P. C. T., and O’Hara, G. P., 1984, “Finite Element Results of Pressurized Thick Tubes Based on Two Elastic-Plastic Material Models,” Trans. First Army Conference on Applied Mathematics and Computing, ARO Report 84–1, pp. 535–549.
Cited by
96 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