Current experimental techniques for high-temperature displacement/strain evaluation: an outline of available techniques

K. Zarrabi; Bozenko F. Oreb

doi:10.1117/12.269822

20 March 1997 Current experimental techniques for high-temperature displacement/strain evaluation: an outline of available techniques

K. Zarrabi, Bozenko F. Oreb

Author Affiliations +

Proceedings Volume 2921, International Conference on Experimental Mechanics: Advances and Applications; (1997) https://doi.org/10.1117/12.269822
Event: International Conference on Experimental Mechanics: Advances and Applications, 1996, Singapore, Singapore

Abstract

The evaluation of creep displacement and strain at a high temperature cylinder-nozzle welded joint over its design life of 20 - 30 years is an unresolved problem. The numerical solutions such as the finite element methods may not produce sufficiently accurate results for these high temperature welded joints because of uncertainties in the weld material properties, boundary conditions, constitutive equations, etc. While experimental techniques have, to a degree, been successful for ambient temperature applications, their application to the high temperature problems such as a cylinder-nozzle welded joint have been less successful. This paper outlines the current state-of-art of the experimental techniques that may be used for high temperature displacement and strain evaluation on the surface of a cylinder-nozzle welded joint.

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K. Zarrabi and Bozenko F. Oreb "Current experimental techniques for high-temperature displacement/strain evaluation: an outline of available techniques", Proc. SPIE 2921, International Conference on Experimental Mechanics: Advances and Applications, (20 March 1997); https://doi.org/10.1117/12.269822

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