Time-Temperature Equivalence for Rocks

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Abstract:

Based on the theory of irreversible process thermodynamics, non-linear stress-strain-temperature equations are derived, together with an expression for time-temperature equivalence. In addition, an equation of shift factor for time-temperature equivalence is also obtained. The parameters in the equations are experimentally determined and the main curves for creep compliance and cohesion of TGP granite are obtained by a series of creep tests. It is proved that both deformation and strength of the TGP granite follow the time-temperature equivalent principle.

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Key Engineering Materials (Volumes 306-308)

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1397-1402

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March 2006

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© 2006 Trans Tech Publications Ltd. All Rights Reserved

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