Cyclic softening behaviour of a P91 steel under low cycle fatigue at high temperature

A. A. Saad; W. Sun; T. H. Hyde; D. W. J. Tanner

doi:10.1016/j.proeng.2011.04.182

Cyclic softening behaviour of a P91 steel under low cycle fatigue at high temperature

A. A. Saad, W. Sun, T. H. Hyde, D. W. J. Tanner

Research output: Chapter in Book/Report/Conference proceeding › Conference Contribution (Conference Proceeding)

41 Citations (Scopus)

Abstract

This paper describes a model used to represent the cyclic mechanical behaviour of P91 martensitic steel. Low cycle fatigue tests were conducted at 600 °C using a thermo-mechanical fatigue test machine. A unified, Chaboche viscoplasticity model, was used to model the behaviour of the steel. The micro structure of the steel at different life fractions of the tests was investigated using scanning and transmission electron microscope images. The viscoplasticity model, with two stages of softening period, has resulted in better prediction capability for the cyclic behaviour of the steel for an initially undamaged material prior to crack initiation.

Original language	English
Title of host publication	11th International Conference on the Mechanical Behavior of Materials (ICM11)
Place of Publication	Lake Como, Italy
DOIs	https://doi.org/10.1016/j.proeng.2011.04.182
Publication status	Published - 2011
Event	11th International Conference on the Mechanical Behavior of Materials (ICM11) - Como, Italy Duration: 5 Jun 2011 → 9 Jun 2011

Conference

Conference	11th International Conference on the Mechanical Behavior of Materials (ICM11)
Country	Italy
City	Como
Period	5/06/11 → 9/06/11

Keywords

Viscoplasticity model P91 steel Cyclic softening FE prediction Microstructural evolution

Access to Document

10.1016/j.proeng.2011.04.182

http://www.sciencedirect.com/science/article/pii/S1877705811003705

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Cite this

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title = "Cyclic softening behaviour of a P91 steel under low cycle fatigue at high temperature",

abstract = "This paper describes a model used to represent the cyclic mechanical behaviour of P91 martensitic steel. Low cycle fatigue tests were conducted at 600 °C using a thermo-mechanical fatigue test machine. A unified, Chaboche viscoplasticity model, was used to model the behaviour of the steel. The micro structure of the steel at different life fractions of the tests was investigated using scanning and transmission electron microscope images. The viscoplasticity model, with two stages of softening period, has resulted in better prediction capability for the cyclic behaviour of the steel for an initially undamaged material prior to crack initiation.",

keywords = "Viscoplasticity model P91 steel Cyclic softening FE prediction Microstructural evolution",

author = "Saad, {A. A.} and W. Sun and Hyde, {T. H.} and Tanner, {D. W. J.}",

year = "2011",

doi = "10.1016/j.proeng.2011.04.182",

language = "English",

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Saad, AA, Sun, W, Hyde, TH & Tanner, DWJ 2011, Cyclic softening behaviour of a P91 steel under low cycle fatigue at high temperature. in 11th International Conference on the Mechanical Behavior of Materials (ICM11). Lake Como, Italy, 11th International Conference on the Mechanical Behavior of Materials (ICM11), Como, Italy, 5/06/11. https://doi.org/10.1016/j.proeng.2011.04.182

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AU - Hyde, T. H.

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PY - 2011

Y1 - 2011

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KW - Viscoplasticity model P91 steel Cyclic softening FE prediction Microstructural evolution

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DO - 10.1016/j.proeng.2011.04.182

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BT - 11th International Conference on the Mechanical Behavior of Materials (ICM11)

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T2 - 11th International Conference on the Mechanical Behavior of Materials (ICM11)

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