The paper reports analytical solutions valid for residual stresses in cylindrical pressure vessels subjected to autofrettage. The material behavior is thought of as obeying a generic monotonic σ−ε curve and exhibiting the Bauschinger effect during the unloading phase. Under linear and power-hardening conditions, the solution is given in an explicit form. The circumstances under which it is possible to apply the superposition principle also in the presence of localized plasticity are clearly identified. When possible, the final stresses can be obtained by using in an appropriate manner the stress expressions related to the loading phase. Finally, the influence on residual stresses, both of the hardening law and of the shape of the unloading σ−ε curve, is discussed.
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February 2002
Technical Papers
Autofrettaged Cylindrical Vessels and Bauschinger Effect: An Analytical Frame for Evaluating Residual Stress Distributions
Paolo Livieri,
Paolo Livieri
Department of Engineering, University of Ferrara, 44100 Ferrara, Italy
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Paolo Lazzarin
Paolo Lazzarin
Department of Management and Engineering, University of Padova, 36100 Vicenza, Italy
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Paolo Livieri
Department of Engineering, University of Ferrara, 44100 Ferrara, Italy
Paolo Lazzarin
Department of Management and Engineering, University of Padova, 36100 Vicenza, Italy
Contributed by the Pressure Vessels and Piping Division for publication in the JOURNAL OF PRESSURE VESSEL TECHNOLOGY. Manuscript received by the PVP Division, February 26, 2001; revised manuscript received July 20, 2001. Associate Editor: D. M. Fryer.
J. Pressure Vessel Technol. Feb 2002, 124(1): 38-46 (9 pages)
Published Online: July 20, 2001
Article history
Received:
February 26, 2001
Revised:
July 20, 2001
Citation
Livieri, P., and Lazzarin, P. (July 20, 2001). "Autofrettaged Cylindrical Vessels and Bauschinger Effect: An Analytical Frame for Evaluating Residual Stress Distributions ." ASME. J. Pressure Vessel Technol. February 2002; 124(1): 38–46. https://doi.org/10.1115/1.1425809
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