Chapter

Advanced Materials Modelling for Structures

Volume 19 of the series Advanced Structured Materials pp 31-41

Date:

Finite Element Modelling of the Thermo-Mechanical Behaviour of a 9Cr Martensitic Steel

  • R. A. BarrettAffiliated withRyan Institute for Environmental, Marine and Energy Research, NUIMechanical and Biomedical Engineering, College of Engineering and Informatics, NUI Email author 
  • , P. E. O’DonoghueAffiliated withCivil Engineering, College of Engineering and Informatics, NUIRyan Institute for Environmental, Marine and Energy Research, NUI
  • , S. B. LeenAffiliated withMechanical and Biomedical Engineering, College of Engineering and Informatics, NUIRyan Institute for Environmental, Marine and Energy Research, NUI

* Final gross prices may vary according to local VAT.

Get Access

Abstract

A multi-axial, unified sinh viscoplastic material model has been developed to model the behaviour of advanced materials subjected to high temperature cyclic loading. The material model accounts for rate-dependent effects related to high temperature creep and cyclic plasticity effects such as isotropic and kinematic hardening. The material model, which is capable of simulating both isothermal and anisothermal loading conditions, is implemented in multi-axial form in a material user subroutine and validated against uniaxial test data. The results validate the implementation for both isothermal and anisothermal uniaxial loading conditions for as-new P91 steel.