TY - JOUR
T1 - Micromechanics-based constitutive modeling for unidirectional laminated composites
AU - Liang, Z.
AU - Lee, H. K.
AU - Suaris, W.
N1 - Funding Information:
This research was partially supported by National Computational Science Alliance under MSS020010N and utilized the IBM P690 supercomputer. The authors would also like to thank the Ministry of Science and Technology, Korea, for the financial support by a grant (No. NC 33676, R11-2002-101-02004-0) from the Smart Infra-Structure Technology Center (SISTeC), Korea.
PY - 2006/9
Y1 - 2006/9
N2 - A micromechanics-based constitutive model is developed to predict the effective mechanical behavior of unidirectional laminated composites. A newly developed Eshelby's tensor for an infinite circular cylindrical inclusion [Cheng, Z.Q., Batra, R.C., 1999. Exact Eshelby tensor for a dynamic circular cylindrical inclusion. J. Appl. Mech. 66, 563-565] is adopted to model the unidirectional fibers and is incorporated into the micromechanical framework. The progressive loss of strength resulting from the partial fiber debonding and the nucleation of microcracks is incorporated into the constitutive model. To validate the proposed model, the predicted effective stiffness of transversely isotropic composites under far field loading conditions is compared with analytical solutions. The constitutive model incorporating the damage models is then implemented into a finite element code to numerically characterize the elastic behavior of laminated composites. Finally, the present predictions on the stress-strain behavior of laminated composite plate containing an open hole is compared with experimental data to verify the predictive capability of the model.
AB - A micromechanics-based constitutive model is developed to predict the effective mechanical behavior of unidirectional laminated composites. A newly developed Eshelby's tensor for an infinite circular cylindrical inclusion [Cheng, Z.Q., Batra, R.C., 1999. Exact Eshelby tensor for a dynamic circular cylindrical inclusion. J. Appl. Mech. 66, 563-565] is adopted to model the unidirectional fibers and is incorporated into the micromechanical framework. The progressive loss of strength resulting from the partial fiber debonding and the nucleation of microcracks is incorporated into the constitutive model. To validate the proposed model, the predicted effective stiffness of transversely isotropic composites under far field loading conditions is compared with analytical solutions. The constitutive model incorporating the damage models is then implemented into a finite element code to numerically characterize the elastic behavior of laminated composites. Finally, the present predictions on the stress-strain behavior of laminated composite plate containing an open hole is compared with experimental data to verify the predictive capability of the model.
KW - Damage modeling
KW - Finite element implementation
KW - Micromechanics
KW - Stiffness transformation
KW - Unidirectional laminated composites
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U2 - 10.1016/j.ijsolstr.2005.08.020
DO - 10.1016/j.ijsolstr.2005.08.020
M3 - Article
AN - SCOPUS:33746214868
VL - 43
SP - 5674
EP - 5689
JO - International Journal of Solids and Structures
JF - International Journal of Solids and Structures
SN - 0020-7683
IS - 18-19
ER -