The Multiaxial Creep Strength Analysis Coupling with Damage Evolution for 3D Innercasing of the USC Turbine System

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Abstract:

Information revealed from 3D thermal-mechanical simulations of the innercasing over 0.2 million hours by finite element method(FEM) provides detailed local distributions of stress, temperature, and creep damage through the whole configuration. It found that the innercasing of a Ultra-supercritical(USC) turbine is subjected to the complex stress states. Due to this, the multiaxial effect is considered in the creep damage analysis.

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593-597

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March 2013

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© 2013 Trans Tech Publications Ltd. All Rights Reserved

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