Modelling of Cyclic Plasticity and Viscoplasticity of a Nimonic Alloy 75

Abstract:

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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.

Info:

Periodical:

Advanced Materials Research (Volumes 146-147)

Edited by:

Sihai Jiao, Zhengyi Jiang and Jinglong Bu

Pages:

1617-1620

DOI:

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

Citation:

Z. L. Zhan et al., "Modelling of Cyclic Plasticity and Viscoplasticity of a Nimonic Alloy 75", Advanced Materials Research, Vols. 146-147, pp. 1617-1620, 2011

Online since:

October 2010

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Price:

$35.00

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