Preliminary analysing of experimental data for the development of high Cr Alloy Creep damage constitutive equations

Li Li An, Qiang Xu, Donglai Xu, Zhongyu Lu

Research output: Contribution to conferencePaper

Abstract

This paper presents the current research of preliminary analysing of experimental data for the development of high Cr Alloy Creep damage Constitutive Equations (such as P91 alloy). Firstly, it briefly introduces the background of general creep deformation, rupture and continuum damage mechanics. Secondly, it illustrates the constitutive equations used for P91 alloy or its weldment, especially of the form and deficiencies of two kinds of most widely used typical creep damage constitutive equations Kachanov-Rabotnov-Hayhurst (KRH) and Xu's formations. And then, the methodology for development of new set constitutive equation proposed by Xu (2004)[1] has been followed in this research. Fourthly, there is a critically analysis of the specific experiment data for P91 alloy and its weldment. Afterwards, the specific requirements for developing a new set constitutive equation have been reported. Finally it suggests the directions for future work. This paper contributes to the knowledge for the developing creep damage constitutive equations for the specific material.
Original languageEnglish
Publication statusPublished - 2012
Event18th International Conference on Automation and Computing (ICAC) - Loughborough University, United Kingdom
Duration: 8 Sep 20128 Sep 2012

Conference

Conference18th International Conference on Automation and Computing (ICAC)
CountryUnited Kingdom
Period8/09/128/09/12

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    An, L. L., Xu, Q., Xu, D., & Lu, Z. (2012). Preliminary analysing of experimental data for the development of high Cr Alloy Creep damage constitutive equations. Paper presented at 18th International Conference on Automation and Computing (ICAC), United Kingdom.