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Plasticity-damage model parameters identification for structural connections
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  • Journal title : Coupled systems mechanics
  • Volume 4, Issue 4,  2015, pp.337-364
  • Publisher : Techno-Press
  • DOI : 10.12989/csm.2015.4.4.337
 Title & Authors
Plasticity-damage model parameters identification for structural connections
Imamovic, Ismar; Ibrahimbegovic, Adnan; Knopf-Lenoir, Catherine; Mesic, Esad;
 Abstract
In this paper we present methodology for parameters identification of constitutive model which is able to present behavior of a connection between two members in a structure. Such a constitutive model for frame connections can be cast in the most general form of the Timoshenko beam, which can present three failure modes. The first failure mode pertains to the bending in connection, which is defined as coupled plasticity-damage model with nonlinear softening. The second failure mode is seeking to capture the shearing of connection, which is defined as plasticity with linear hardening and nonlinear softening. The third failure mode pertains to the diffuse failure in the members; excluding it leads to linear elastic constitutive law. Theoretical formulation of this Timoshenko beam model and its finite element implementation are presented in the second section. The parameter identification procedure that will allow us to define eighteen unknown parameters is given in Section 3. The proposed methodology splits identification in three phases, with all details presented in Section 4 through three different examples. We also present the real experimental results. The conclusions are stated in the last section of the paper.
 Keywords
identification;connection;coupled plasticity-damage;Euler-Bernoulli and Timoshenko beam;
 Language
English
 Cited by
1.
Nonlinear kinematics Reissner’s beam with combined hardening/softening elastoplasticity, Computers & Structures, 2017, 189, 12  crossref(new windwow)
 References
1.
Ayhan, B., Jehel, P., Brancherie, D. and Ibrahimbegovic, A. (2013), "Coupled damage-plasticity model for cyclic loading: Theoretical formulation and numerical implementation", Eng. Struct., 50, 30-42. crossref(new window)

2.
Bui, N.N., Ngo, M., Nikolic, M., Brancherie, D. and Ibrahimbegovic, A. (2014), "Enriched Timoshenko beam finite element for modeling bending and shear failure of reinforced concrete frames", Comput. Struct., 143, 9-18. crossref(new window)

3.
Dujc, J., Brank, B. and Ibrahimbegovic, A. (2010), "Multi-scale computational model for failure analysis of metal frames that includes softening and local buckling", Comput. Method. Appl. M., 199(21-22), 1371-1385. crossref(new window)

4.
Ibrahimbegovic, A. (2009), Nonlinear solid mechanics: Theoretical formulations and finite element solution methods, Springer, London.

5.
Ibrahimbegovic, A., Gharzeddine, F. and Chorfi, L. (1998), "Classical plasticity and viscoplasticity models reformulated: theoretical basis and numerical implementation", Int. J. Numer. Meth. Eng., 42(8), 1499-1535. crossref(new window)

6.
Ibrahimbegovic, A., Hajdo, E. and Dolarevic, S. (2013), "Linear instability or buckling problems for mechanical and coupled thermomechanical extreme conditions", Coupled Syst. Mech., 2(4), 349-374. crossref(new window)

7.
Ibrahimbegovic, A., Jehel, P. and Davenne, L. (2008), "Coupled damage-plasticity constitutive model and direct stress interpolation", Comput. Mech., 42(1), 1-11. crossref(new window)

8.
Ibrahimbegovic, A., Knopf-Lenoir, C., Kucerova, A. and Villon, P. (2004), "Optimal design and optimal control of structures undergoing finite rotations and elastic deformations", Int. J. Numer. Meth. Eng., 61(14), 2428-2460. crossref(new window)

9.
Ibrahimbegovic, A. and Wilson, E. (1991), "A modified method of incompatible modes", Commun. Appl. Numer. Method., 7(3), 187-194. crossref(new window)

10.
Kucerova, A., Brancherie, D., Ibrahimbegovic, A., Zeman, J. and Bittnar, Z. (2009), "Novel anisotropic continuum-discrete damage model capable of representing localized failure of massive structures Part II: identification from tests under heterogeneous stress field", Eng. Comput., 26(1-2), 128 -144. crossref(new window)

11.
Medic, S., Dolarevic, S. and Ibrahimbegovic, A. (2013), "Beam model refinement and reduction", Eng. Struct., 50, 158-169. crossref(new window)

12.
Mesic, E. (2003), "Analysis of timber frames wth localized nonlinearities", Facta Universitatis, Series Arch. Civil. Eng., 2(5), Nis.

13.
Nikolic, M. and Ibrahimbegovic, A. (2015), "Rock mechanics model capable of representing initial heterogeneities and full set of 3D failure mechanisms", Comput. Method. Appl. M., 290, 209-227. crossref(new window)

14.
Shi, G., Shi, Y. and Wang, Y. (2007), "Behaviour of end-plate moment connections under earthquake loading", Eng. Struct., 29(5), 703-716. crossref(new window)

15.
Zienkiewicz, O.C. and Taylor, R.L. (2005), The Finite Element Method, vol I, II, III, Elsevier.

16.
MATLAB and Statistics Toolbox Release (2012), The MathWorks, Inc., Natick, Massachusetts, United States.