An Adaptive Growth Method for Shape Refinement: Methodology and Applications to Pressure Vessels and Piping

[+] Author and Article Information
H. Azegami, A. Okitsu, A. Takami

Department of Energy Engineering, Toyohashi University of Technology, Toyohashi, Japan

T. Ogihara

Suzuki Motor Company, Limited, Hamamatsu, Japan

J. Pressure Vessel Technol 114(1), 87-93 (Feb 01, 1992) (7 pages) doi:10.1115/1.2929017 History: Received November 01, 1989; Revised May 08, 1991; Online June 17, 2008


A simple shape refinement technique for improving strength has been developed. The technique is to deform shapes with growth bulk strain which springs up in proportion with deflection of a strength measure to a basic value in all parts of a body. The scheme for the shape refinement consists of the iteration of the two steps with finite element method: 1) analysis step of a strength measure distribution, and 2) growth deformation step with the growth bulk strain. Numerical experiments on static and dynamic test problems and practical problems of pressure vessel and piping system indicate the effectiveness of this technique for improving strength.

Copyright © 1992 by The American Society of Mechanical Engineers
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