{"title":"Material Parameter Identification of Modified AbdelKarim-Ohno Model","authors":"M. Cermak, T. Karasek, J. Rojicek","volume":100,"journal":"International Journal of Aerospace and Mechanical Engineering","pagesStart":306,"pagesEnd":311,"ISSN":"1307-6892","URL":"https:\/\/publications.waset.org\/pdf\/10001051","abstract":"
The key role in phenomenological modelling of cyclic
\r\nplasticity is good understanding of stress-strain behaviour of given
\r\nmaterial. There are many models describing behaviour of materials
\r\nusing numerous parameters and constants. Combination of individual
\r\nparameters in those material models significantly determines whether
\r\nobserved and predicted results are in compliance. Parameter
\r\nidentification techniques such as random gradient, genetic algorithm
\r\nand sensitivity analysis are used for identification of parameters using
\r\nnumerical modelling and simulation. In this paper genetic algorithm
\r\nand sensitivity analysis are used to study effect of 4 parameters of
\r\nmodified AbdelKarim-Ohno cyclic plasticity model. Results
\r\npredicted by Finite Element (FE) simulation are compared with
\r\nexperimental data from biaxial ratcheting test with semi-elliptical
\r\nloading path.<\/p>\r\n","references":"[1]\tJ.L. Chaboche, K. Dang Van, G. Cordier,Modelization of The Strain Memory Effect on The Cyclic Hardening of 316 Stainless Steel, In: 5th International Conference on Structural Mechanics in Reactor Technology, Division L11\/ (Roj\u00ed\u010dek, 2010), Berlin, 13.-17. August 1979, Ed. Jaeger A and Boley B A. Berlin: Bundesanstaltf\u0171rMaterialpr\u0171fung, pp.1-10.\r\n[2]\tN. Ohno and J.D. Wang, Kinematic Hardening Rules with Critical State of Dynamic Recovery, Part I: Formulation and Basic Features for Ratchetting Behavior, International Journal of Plasticity 9, 1993, pp. 375-390.\r\n[3]\tM. Abdel-Karim and N. Ohno, Kinematic Hardening Model Suitable for Ratchetting with Steady-State, International Journal of Plasticity 16, 2000, pp. 225-240.\r\n[4]\tR. Halama, M. \u0160ofer, F. Fojt\u00edk and A. Markopoulos, Testing and Modeling of Uniaxial and Multiaxial Stress-Strain Behaviour of R7T Wheel Steel. In: Conference Proceeding of EAN2014-52nd International Conference on Experimental Stress Analysis, MarianskeLazne, Czech Republic, 2 June 2014 through 5 June 2014.\r\n[5]\tR. Halama, F. Fojt\u00edk and A. Markopoulos, Memorization and Other Transient Effects of ST52 Steel and Its FE Description, Applied Mechanics and Materials, 2013, Vol.486, p.48-53. ISSN 1662-7482.\r\n[6]\tD.L. McDowell, Stress state dependence of cyclic ratchettingbehaviour of two rail steels, International Journal of Plasticity 11 (4), 1995, pp. 397\u2013421.\r\n[7]\tR. Halama, A. Markopoulos, M. \u0160ofer and P. Matu\u0161ek, Cyclic Plastic Properties of Class C Steel Including Ratcheting: Testing and Modelling. In: Proceedings of the 6th Czech-Japanese workshop New Methods of Damage and Failure Analysis of Structural Parts 8 \u2013 11, September, 2014, Ostrava, Czech Republic.\r\n[8]\tR. Halama, J. Sedl\u00e1k and M. \u0160ofer, Phenomenological Modelling of Cyclic Plasticity, Numerical Modelling, Peep Miidla, Ed. ISBN: 978-953-51-0219-9, InTech, 2012, pp. 329-354. Available from: http:\/\/www.intechopen.com\/books\/numerical-modelling\/phenomenological-modelling-of-cyclic-plasticity\r\n[9]\tJ. Roj\u00ed\u010dek, R. Halama, Numerical simulations of pipeline bending tests. Appl Comp Mech 2008, Vol.2, pp.347-356.\r\n[10]\tJ. Roj\u00ed\u010dek, The Set of Experiments - Analysis by Inverse Identification Method. Journal for Theory and Practice in Metallurgy 49. (2), pp. 488-492, 2010.","publisher":"World Academy of Science, Engineering and Technology","index":"Open Science Index 100, 2015"}