13th International Conference on Fracture June 16–21, 2013, Beijing, China -10- calculated fatigue and creep damage under creep-fatigue interaction conditions within the LMM framework. By the application of the LMM to both Types 1 and 2 weldment subjected to reverse bending moment at creep fatigue condition with experimental comparisons, it confirms the efficiency and effectiveness of the proposed method for the creep fatigue damage assessment and demonstrates that LMM may be applied to complicated engineering applications with a much wider range of circumstances. Acknowledgements The authors deeply appreciate the Engineering and Physical Sciences Research Council (EPSRC) of the United Kingdom for the financial support (EP/G038880/1), the University of Strathclyde for hosting during the course of this work, and EDF Energy for the experimental data. References [1] R.A. Ainsworth, (Editor), R5: Assessment procedure for the high temperature response of structures, Issue 3, British Energy Generation Ltd, 2003. [2] J. Bree, Elastic-plastic behaviour of thin tubes subjected to internal pressure and intermittent high-heat fluxes with application to fast-nuclear-reactor fuel elements. J strain anal, 2 (1967) 226–238. [3] T. Nguyen, et al, Determination of the stabilized response of a structure undergoing cyclic thermal-mechanical loads by a direct cyclic method. ABAQUS Users' Conference Proceedings, 2003. [4] ABAQUS, User’s manual. Version 6.11, 2011. [5] H.F. Chen, A.R.S. Ponter, Linear Matching Method on the evaluation of plastic and creep behaviours for bodies subjected to cyclic thermal and mechanical loading. International Journal for Numerical Methods in Engineering, 68 (2006) 13-32. [6] H.F. Chen, W.H. Chen, J. Ure, A direct method on the evaluation of cyclic behavior with creep effect. ASME Pressure Vessels & Piping Division Conference, 2012. [7] H.F. Chen, Lower and upper bound shakedown analysis of structures with temperature-dependent yield stress. Journal of Pressure Vessel Technology, 132 (2010) 1-8. [8] H.F. Chen, A.R.S. Ponter, A direct method on the evaluation of ratchet limit, Journal of Pressure Vessel Technology, 132 (2010) 041202. [9] H.F. Chen, M.J. Engelhardt, A.R.S. Ponter, Linear matching method for creep rupture assessment. International Journal of Pressure Vessels and Piping, 80 (2003) 213-220. [10]D.J. Tipping, The Linear Matching Method: a guide to the ABAQUS user subroutines. E/REP/BBGB/0017/ GEN/07, British Energy Generation, 2007. [11] S.K. Bate, J.P. Hayes, D.G. Hooton, N.G. Smith, Further analyses to validate the R5 volume 2/3 procedure for the assessment of austenitic weldments. SA/EIG/11890/R002, Serco Assurance, Warrington, UK, 2005. [12]I. Bretherton, G. Knowles, J.P. Hayes, S.K. Bate, C.J. Austin, PC/AGR/5087: Final report on the fatigue and creep-fatigue behaviour of welded cruciform joints. RJCB/RD01186/R01, Serco Assurance, Warrington, UK, 2004. [13] I. Bretherton, G. Knowles, I.J. Slater, S.F. Yellowlees, The fatigue and creep-fatigue behaviour of 26mm thick type 316L(N) welded cruciform joints at 550 C: An interim report. R/NE/432, AEA Technology plc, Warrington, UK, 1998. [14] Y. Gorash, H.F. Chen, Creep fatigue life assessment of cruciform weldments using the linear matching method. Int J Press Vess Piping, (accepted) 2012. [15] Y. Gorash, H.F. Chen, A parametric study on creep-fatigue strength of welded joints using the linear matching method. International Journal of Fatigue, (submitted) 2012.
RkJQdWJsaXNoZXIy MjM0NDE=