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F. Dittmann et al. / Procedia Structural Integrity 2 (2016) 2974–2981 Author name / Structural Integrity Procedia 00 (2016) 000–000

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(a) ���� � ����� (b) ���� � ���4 Fig. 5. Numerical vs. analytical � � estimates for a completely circumferential internal crack in a hollow cylinder, strain hardening exponent � � 4 . Examples for ��� � ���� (a) and ��� � ��4 (b). Acknowledgements This study is a part of a research project performed within the Research Committee on Mechanical Engineering (FKM) under the AiF grant no. 17704 N. The financial support by the Federal Ministry for Economic Affairs and Energy (BMWi) is gratefully acknowledged. References Ainsworth, R.A., 1986. The treatment of thermal and residual stresses in fracture assessments. Engineering Fracture Mechanics 24, 65–76. Ainsworth, R.A., Sharples, J.K., Smith, S.D., 2000. Effects of residual stresses fracture behaviour – experimental results and assessment methods. Journal of Strain Analysis for Engineering Design 35, 307–316. Dittmann, F., Varfolomeev, I., Schuster, L., Kaffenberger, M., 2015. Investigation on consideration of constraint effects in analytical failure assessment, 47 th Conf. DVM Working Group Fracture Mechanics, 10-11 February 2015, Freiberg, pp. 189–198. FITNET, 2008. Fitness-for-Service Procedure. Kocak, M., et al. (eds.), GKSS Research Center, Geesthacht. Hooton, D.G., Budden, P.J., 1995. R6 developments in the treatment of secondary stresses, ASME/JSME Pressure Vessels & Piping Division Conf., July 23-27, 1995, Honolulu, PVP-Vol. 304. James, P.M., Hooton, D.G., Madew, C.J., Sherry, A.H., 2013a. Predictions of elastic-plastic crack driving force and redistribution under combined primary and secondary stresses – Part 1: Analytical investigation. International Journal of Pressure Vessels and Piping 101, 101–112. James, P.M., Hooton, D.G., Madew, C.J., Sherry, A.H., 2013b. Predictions of elastic-plastic crack driving force and redistribution under combined primary and secondary stresses – Part 2: Experimental application. International Journal of Pressure Vessels and Piping 101, 91–100. R6, 2013. Assessment of the Integrity of Structures Containing Defects, Revision 4, EDF, Barnwood, Gloucester. Varfolomeev, I., Mayinger, W., 2011. Consideration of thermally induced bending load in failure assessment of piping components, ASME 2011 Pressure Vessels & Piping Division Conf. PVP2011, July 17-21, 2011, Baltimore, MD, Paper PVP2011-57582.