Abstract
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.
| Original language | English |
|---|---|
| Pages (from-to) | 5674-5689 |
| Number of pages | 16 |
| Journal | International Journal of Solids and Structures |
| Volume | 43 |
| Issue number | 18-19 |
| DOIs | |
| State | Published - Sep 1 2006 |
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Keywords
- Damage modeling
- Finite element implementation
- Micromechanics
- Stiffness transformation
- Unidirectional laminated composites
ASJC Scopus subject areas
- Mechanical Engineering
- Mechanics of Materials
Cite this
Micromechanics-based constitutive modeling for unidirectional laminated composites. / Liang, Z.; Lee, H. K.; Suaris, Wimal.
In: International Journal of Solids and Structures, Vol. 43, No. 18-19, 01.09.2006, p. 5674-5689.Research output: Contribution to journal › Article
}
TY - JOUR
T1 - Micromechanics-based constitutive modeling for unidirectional laminated composites
AU - Liang, Z.
AU - Lee, H. K.
AU - Suaris, Wimal
PY - 2006/9/1
Y1 - 2006/9/1
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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UR - http://www.scopus.com/inward/citedby.url?scp=33746214868&partnerID=8YFLogxK
U2 - 10.1016/j.ijsolstr.2005.08.020
DO - 10.1016/j.ijsolstr.2005.08.020
M3 - Article
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 -