A comprehensive review of the elastic compensation method for calculating limit and shakedown load bounds for complex structures is presented. The origins of the method in pressure vessel design by analysis is described and related methods for load and shakedown analysis considered, in particular Marriott's reduced modulus method, Seshadri's GLOSS r-node method and Ponter's modified elastic modulus method. The paper concludes with a recommendation for future work: development of an element level formulation of the method.
It is the aim of this paper to survey recent developments in the methods of inelastic piping system analysis. Particular attention is paid to simplified methods which avoid costly finite element analysis. Included is a survey of available computer codes, benchmarks and comparative studies together with a discussion of simple screening rules based on elastic analyses alone.
Stress classification is a significant problem in pressure vessel design by analysis, especially if the design is based on solid finite element analysis. Stress categorization may be circumvented if the design is based on elastic-plastic or limit analysis but the degree of difficulty commonly associated with these types of analysis makes this approach unattractive to many designers. In this paper, a brief survey of a number of recent developments in pressure vessel design by analysis is discussed and assessed in light of Code design requirements.
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