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RESEARCH PAPERS

The Contact Stress Analysis of Pad-Reinforced Structures

[+] Author and Article Information
H. Chien, S. Tu

Department of Mechanical Engineering, Nanjing Institute of Chemical Technology, Nanjing, People’s Republic of China

J. Pressure Vessel Technol 110(2), 182-187 (May 01, 1988) (6 pages) doi:10.1115/1.3265584 History: Received January 15, 1988; Online November 05, 2009

Abstract

The study introduces a concept of contact stress analysis to the local stress calculation of plate and shell structures in pressure vessels. A new computational method for local stresses is proposed in the light of the contact between pad and shell and the compatibility at the pad edges due to the fillet weld. Using the developed program of the contact stress analysis of plates and shells, which is based on the flexibility mixed FEM, the authors have studied the contact stresses of a saddle support model and local stresses of a suspended tower structure which cannot be achieved with old methods. The theoretical calculations coincide well with the experimental results.

Copyright © 1988 by ASME
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