ELASTOPLASTIC STRESS ANALYSIS OF AUTOFRETTAGED INTERNAL CONE-CYLINDER PRESSURE VESSEL

›› 1993, Vol. 29 ›› Issue (3): 67-73.

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ELASTOPLASTIC STRESS ANALYSIS OF AUTOFRETTAGED INTERNAL CONE-CYLINDER PRESSURE VESSEL

Liu Yong;Zhang Kangda;Wang Liangguo;Yu Daowen

Zhejiang University of Technology East China Institute of Technology

Published:1993-05-01

Abstract

Abstract: This paper firstly presents one mixed hardening material model of high strength steel by means of tension-compression experiment and proposes the non-linear BEM implementation for calculating the loading stress-strains and unloading residual stress-strains of the autofrettaged thick walled internal cone shape-cylinder pressure vessel. Then, the stress fields along axis and radial direction re obtained. The comparison with results of autofretiaged experiment and large FEM program ADINA is given finally.

Key words: Elastoplastic, Pressure vessel, Stress field

Liu Yong;Zhang Kangda;Wang Liangguo;Yu Daowen. ELASTOPLASTIC STRESS ANALYSIS OF AUTOFRETTAGED INTERNAL CONE-CYLINDER PRESSURE VESSEL[J]. , 1993, 29(3): 67-73.

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ELASTOPLASTIC STRESS ANALYSIS OF AUTOFRETTAGED INTERNAL CONE-CYLINDER PRESSURE VESSEL

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