Steam pipelines' effort and durability

• Autorzy: Okrajni J. , Mutwil K. , Cieśla M.
• Języki publikacji: EN

Abstrakty

EN

Purpose: The main problem addressed in the paper is the description of an effort and durability of steam pipelines under the conditions of mechanical and thermal interactions. Design/methodology/approach: The FEM modelling has been used to determine the stress and strain fields in the pipelines and to describe their behaviour under mechanical and thermal loading. Findings: An appropriate model description has been developed. So far, experimental verification of the usefulness of the model description to determine the stress and strain patterns in particular object and for chosen operation conditions has been made. The analysis made has shown that the most probable cause of cracks occurence on the analyzed chosen pipeline' inner surfaces are thermal deformations and constraints of their dislocations. Research limitations/implications: The developed description should be useful in problems of behaviour predictions of high temperature components and their durability assessment under different mechanical and thermal loadings in industry practical applications. Originality/value: The method, which more precise description of power industry components behaviour makes possible have been shown in the work. The work is addressed to researchers interested in problems of component behaviour prediction under different loadings that we can meet in the operation practice and to power industry engineering maintenance staff.

Słowa kluczowe

EN

numerical techniques; residual life analysis; applied mechanics

PL

techniki numeryczne; analiza trwałości resztkowej; mechanika stosowana

• Wydawca: International OCSCO World Press
• Czasopismo: Journal of Achievements in Materials and Manufacturing Engineering
• Rocznik: 2007
• Tom: Vol. 22, nr 2
• Strony: 63--66
• Opis fizyczny: Bibligr. 15 poz., rys.

Twórcy

autor

Okrajni J.

autor

Mutwil K.

autor

Cieśla M.

• Department of Mechanics of Materials, Silesian University of Technology, ul. Krasińskiego 8, 41-403 Katowice, Poland,

Bibliografia

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