Modelling of Cyclic Plasticity and Viscoplasticity of a Nimonic Alloy 75

Zhi Lan Zhan; Gao Ping Liu; Xuechao Chen

doi:10.4028/www.scientific.net/AMR.146-147.1617

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Effect of Pulsed Current on the Microstructure and Distribution of C and Mn in an Fe-0.5C-1.5Mn Alloy
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Modelling of Cyclic Plasticity and Viscoplasticity of a Nimonic Alloy 75
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Effect of Pickling Process on Adhesion Strength of Ti Oxide Layer on Titanium Alloy Substrate
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HomeAdvanced Materials ResearchAdvanced Materials Research Vols. 146-147Modelling of Cyclic Plasticity and Viscoplasticity...

Modelling of Cyclic Plasticity and Viscoplasticity of a Nimonic Alloy 75

Abstract:

Cyclic plasticity and viscoplasticity of a nickel-chromium alloy have been described using the Chaboche unified constitutive model. Experiments have been developed to obtain the full cyclic stress-strain and stress relaxation data at 450°C. A step-by-step method has been used to obtain the initial material parameters, while a non-linear least-square approach has been used to obtain the optimised material parameters. Satisfactory results have been obtained for the simulation of the transient and steady state cyclic stress-strain and stress relaxation behavior.

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Periodical:

Advanced Materials Research (Volumes 146-147)

Pages:

1617-1620

DOI:

https://doi.org/10.4028/www.scientific.net/AMR.146-147.1617

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Online since:

October 2010

Authors:

Zhi Lan Zhan, Gao Ping Liu, Xuechao Chen

Keywords:

Nimonic Alloy 75, Non-Linear Least-Square Optimization, Parameter Determination, Unified Constitutive Models

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