PSI - Issue 13

Fuhui Shen et al. / Procedia Structural Integrity 13 (2018) 1312–1317 Author name / Structural Integrity Procedia 00 (2018) 000–000

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5. Conclusions An experimental and numerical study on the plasticity, damage and fracture behaviors of a pipeline steel has been performed on different length scales. Based on results, some conclusions can be drawn:  Anisotropy effects on the plasticity, damage and fracture properties of the investigated X70 materials have been observed at both laboratory and component scales.  The enHill48 plasticity model is capable of describing the anisotropic behaviors of the investigated material. Acknowledgements thyssenkrupp Steel Europe AG is gratefully acknowledged for materials supply and financial support. Simulations were performed with computing resources granted by RWTH Aachen University under project rwth0241. References Bai, Y., Wierzbicki, T., 2010. Application of extended Mohr–Coulomb criterion to ductile fracture. International Journal of Fracture 161, 1-20. Barlat, F., Aretz, H., Yoon, J.W., Karabin, M.E., Brem, J.C., Dick, R.E., 2005. Linear transfomation-based anisotropic yield functions. International Journal of Plasticity 21, 1009-1039. Barlat, F., Brem, J.C., Yoon, J.W., Chung, K., Dick, R.E., Lege, D.J., Pourboghrat, F., Choi, S.H., Chu, E., 2003. Plane stress yield function for aluminum alloy sheets—part 1: theory. International Journal of Plasticity 19, 1297-1319. Besson, J., 2009. Continuum Models of Ductile Fracture: A Review. International Journal of Damage Mechanics 19, 3-52. Gurson, A.L., 1977. Continuum theory of ductile rupture by void nucleation and growth: Part I—Yield criteria and flow rules for porous ductile media. Journal of Engineering Materials and Technology 99, 2-15. He, J., Lian, J., Golisch, G., Jie, X., Münstermann, S., 2017. A generalized Orowan model for cleavage fracture. Engineering Fracture Mechanics 186, 105-118. Hill, R., 1948. A Theory of the Yielding and Plastic Flow of Anisotropic Metals. Proceedings of the Royal Society of London Series A Mathematical and Physical Sciences 193, 281-297. Lemaitre, J., 1985. A Continuous Damage Mechanics Model for Ductile Fracture. Journal of Engineering Materials and Technology 107, 83-89. Lian, J., Liu, W., Shen, F., Münstermann, S., 2017a. Crystal plasticity assisted prediction on the yield locus evolution and forming limit curves. AIP Conference Proceedings 1896, 020030. Lian, J., Sharaf, M., Archie, F., Münstermann, S., 2013. A hybrid approach for modelling of plasticity and failure behaviour of advanced high strength steel sheets. International Journal of Damage Mechanics 22, 188-218. Lian, J., Shen, F., Jia, X., Ahn, D.-C., Chae, D.-C., Münstermann, S., Bleck, W., 2017b. An evolving non-associated Hill48 plasticity model accounting for anisotropic hardening and r-value evolution and its application to forming limit prediction. International Journal of Solids and Structures. Lian, J., Shen, F., Liu, W., Münstermann, S., 2018. Forming limit prediction by an evolving non-quadratic yield criterion considering the anisotropic hardening and r-value evolution. AIP Conference Proceedings 1960, 150008. Lou, Y., Yoon, J.W., Huh, H., 2014. Modeling of shear ductile fracture considering a changeable cut-off value for stress triaxiality. International Journal of Plasticity 54, 56-80. Mohr, D., Marcadet, S.J., 2015. Micromechanically-motivated phenomenological Hosford–Coulomb model for predicting ductile fracture initiation at low stress triaxialities. International Journal of Solids and Structures 67-68, 40-55. Shen, F., Lian, J., Münstermann, S., 2018. A comparative study on the forming limit diagram prediction between Marciniak-Kuczynski model and modified maximum force criterion by using the evolving non-associated Hill48 plasticity model. AIP Conference Proceedings 1960, 150013. Stoughton, T.B., 2002. A non-associated flow rule for sheet metal forming. International Journal of Plasticity 18, 687-714. Wu, B., Li, X., Di, Y., Brinnel, V., Lian, J., Münstermann, S., 2017. Extension of the modified Bai-Wierzbicki model for predicting ductile fracture under complex loading conditions. Fatigue & Fracture of Engineering Materials & Structures 40, 2152-2168. Bai, Y., Wierzbicki, T., 2008. A new model of metal plasticity and fracture with pressure and Lode dependence. International Journal of Plasticity 24, 1071-1096.