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Pragmatic optimisation methods for determining material constants of viscoplasticity model from isothermal experimental data (2013)
Journal Article
Rouse, J. P., Hyde, C. J., Sun, W., & Hyde, T. (in press). Pragmatic optimisation methods for determining material constants of viscoplasticity model from isothermal experimental data. Materials Science and Technology, 30(1), https://doi.org/10.1179/1743284713Y.0000000277

A procedure to estimate material constants for the unified Chaboche viscoplasticity model from experimental data has been published elsewhere; however several critical assumptions are made to enable this and potential numerical problems can limit the... Read More about Pragmatic optimisation methods for determining material constants of viscoplasticity model from isothermal experimental data.

Comparison of several optimisation strategies for the determination of material constants in the Chaboche visco-plasticity model (2013)
Journal Article
Rouse, J. P., Hyde, C. J., Sun, W., & Hyde, T. (2013). Comparison of several optimisation strategies for the determination of material constants in the Chaboche visco-plasticity model. Journal of Strain Analysis for Engineering Design, 48(6), https://doi.org/10.1177/0309324713490925

Determining representative material constant sets for models that can accurately predict the complex plasticity and creep behaviour of components undergoing cyclic loading is of great interest to many industries. The Chaboche unified visco-plasticity... Read More about Comparison of several optimisation strategies for the determination of material constants in the Chaboche visco-plasticity model.

Effective determination of cyclic-visco-plasticity material properties using an optimisation procedure and experimental data exhibiting scatter (2013)
Journal Article
Rouse, J. P., Hyde, C. J., Sun, W., & Hyde, T. H. (2013). Effective determination of cyclic-visco-plasticity material properties using an optimisation procedure and experimental data exhibiting scatter. Materials at High Temperatures, 30(2), 117-128. https://doi.org/10.3184/096034013x13720928952114

It may be inevitable in the design and analysis of most high temperature components (such as power industry pipe work) that variations in load and/or temperature will occur in normal operation. This presents complications in the prediction of the res... Read More about Effective determination of cyclic-visco-plasticity material properties using an optimisation procedure and experimental data exhibiting scatter.