In this study, a copper alloy is investigated to characterize the secondary (or steady state) creep behavior using Norton’s rule, based on the Power Law model towards the formation of the material creep behavior. Computational work was conducted using the Nastran SOL400 to study the characterization of secondary creep behavior in the tensile creep test simulation. To model the creep characteristics, a few options need to be considered in the analysis such as the CREEP option to identify the creep time behavior of the material, the MATVP option to describe the materials properties and the NLSTEP bulk data entry for controlling the time integration in the finite element program. The uniaxial tensile creep test is illustrated computationally in the 2D FEM analysis. The creep strain results from the FE analysis are verified with the hand calculations. Download the whitepaper to continue reading.

 

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In this study, a copper alloy is investigated to characterize the secondary (or steady state) creep behavior using Norton’s rule, based on the Power Law model towards the formation of the material creep behavior. Computational work was conducted using the Nastran SOL400 to study the characterization of secondary creep behavior in the tensile creep test simulation. To model the creep characteristics, a few options need to be considered in the analysis such as the CREEP option to identify the creep time behavior of the material, the MATVP option to describe the materials properties and the NLSTEP bulk data entry for controlling the time integration in the finite element program. The uniaxial tensile creep test is illustrated computationally in the 2D FEM analysis. The creep strain results from the FE analysis are verified with the hand calculations. Download the whitepaper to continue reading.