Modification of a Macromechanical Finite Element–Based Model for Impact Analysis of Triaxially Braided Composites
Publication: Journal of Aerospace Engineering
Volume 25, Issue 3
Abstract
A macrolevel finite element–based model has been developed to simulate the mechanical and impact response of triaxially braided polymer matrix composites. In the analytical model, the triaxial-braid architecture is simulated by using four parallel shell elements, each of which is modeled as a laminated composite. For the current analytical approach, each shell element is considered to be a smeared homogeneous material. The commercial transient dynamic finite-element code LS-DYNA is used to conduct the simulations, and a continuum damage mechanics model internal to LS-DYNA is used as the material constitutive model. The constitutive model requires stiffness and strength properties of an equivalent unidirectional composite. Simplified micromechanics methods are used to determine the equivalent stiffness properties, and results from coupon-level tests on the braided composite are utilized to back out the required strength properties. Simulations of quasi-static coupon tests of several representative braided composites are conducted to demonstrate the correlation of the model. Impact simulations of a represented braided composite are conducted to demonstrate the capability of the model to predict the penetration velocity and damage patterns obtained experimentally.
Get full access to this article
View all available purchase options and get full access to this article.
Acknowledgments
This work was funded by the Aging Aircraft and Durability Program of the Aviation Safety Project.
References
Bednarcyk, B. A., and Arnold, S. M. (2003). “Micromechanics-based modeling of woven polymer matrix composites.” AIAA J.AIAJAH, 41(9), 1788–1796.
Byun, J.-H. (2000). “The analytical characterization of 2-D braided textile composites.” Compos. Sci. Technol.CSTCEH, 60(5), 705–716.
Cheng, J. (2006). “Material modeling of strain rate dependent polymer and 2D triaxially braided composites.” Ph.D. dissertation, Univ. of Akron, Akron, OH.
Chou, T. W., and Ishikawa, T. (1989). “Analysis and modeling of two-dimensional fabric composites.” Chapter 7, Textile structural composites, composite material series, Chou, T. W. and Ko, F. K., eds., Vol. 3, Elsevier Science, Amsterdam, 209–277.
Daniel, I. M., and Ishai, O. (2006). Engineering mechanics of composite materials, 2nd Ed., Oxford University Press, New York.
Hashin, Z. (1980). “Failure criteria for unidirectional fiber composites.” J. Appl. Mech.JAMCAV, 47(2), 329–334.
Li, X., Binienda, W. K., and Goldberg, R. K. (2010). “Finite element model for failure study of two-dimensional triaxially braided composite.” NASA/TM-2010-216372, National Aeronautics and Space Administration (NASA), Washington, DC.
Li, X., Binienda, W. K., and Littell, J. D. (2009). “Methodology for impact modeling of triaxial braided composites using shell elements.” J. Aerosp. Eng.JAEEEZ, 22(3), 310–317.
Littell, J. D. (2008). “The experimental and analytical characterization of the macromechanical response for triaxial braided composite materials.” Ph.D. dissertation, Univ. of Akron, Akron, OH.
Littell, J. D., Binienda, W. K., Goldberg, R. K., and Roberts, G. D. (2008). “A modeling technique and representation of failure in the analysis of triaxial braided carbon fiber composites.” NASA TM-2008-215245, National Aeronautics and Space Administration (NASA), Washington, DC.
Livermore Software Technology. (2007). LS-DYNA keyword manual Version 971, Livermore Software Technology, Livermore, CA.
Matzenmiller, A., Lubliner, J., and Taylor, R. L. (1995). “A constitutive model for anisotropic damage in fiber-composites.” Mech. Mater.MSMSD3, 20(2), 125–152.
Naik, N. K., and Shembedkar, P. S. (1992). “Elastic behavior of woven fabric composites: I—Lamina analysis.” J. Compos. Mater.JCOMBI, 26(15), 2196–2225.
Pastore, C. M., and Gowayed, Y. A. (1994). “A self-consistent fabric geometry model: Modifications and application of a fabric geometry model to predict the elastic properties of textile composites.” J. Compos. Technol. Res.JCTRER, 16(1), 32–36.
Pereira, J. M., Roberts, G. D., Ruggeri, C. R., Gilat, A., and Matrka, T. (2010). “Experimental techniques for evaluating the effects of aging on impact and high strain rate properties of triaxial braided composite materials.” NASA/TM-2010-216763, National Aeronautics and Space Administration (NASA), Washington, DC.
Roberts, G. D., et al. (2002). “Impact testing and analysis of composites for aircraft engine fan cases.” NASA TM 211493, National Aeronautics and Space Administration (NASA), Washington, DC.
Sun, C. T., and Chen, J.-L. (1991). “A micromechanical model for plastic behavior of fibrous composites.” Compos. Sci. Technol.CSTCEH, 40(2), 115–129.
Tanov, R., and Tabiei, A. (2001). “Computationally efficient micromechanical models for woven fabric composite elastic moduli.” J. Appl. Mech.JAMCAV, 68(4), 553–560.
Information & Authors
Information
Published In
Journal of Aerospace Engineering
Volume 25 • Issue 3 • July 2012
Pages: 383 - 394
Copyright
© 2012. American Society of Civil Engineers.
History
Received: Aug 18, 2010
Accepted: May 26, 2011
Published online: Jun 3, 2011
Published in print: Jul 1, 2012
Authors
Metrics & Citations
Metrics
Citations
Download citation
If you have the appropriate software installed, you can download article citation data to the citation manager of your choice. Simply select your manager software from the list below and click Download.