Analysis and Characterization of Damage Using a Generalized Composite Material Model Suitable for Impact Problems
Publication: Journal of Aerospace Engineering
Volume 31, Issue 4
Abstract
The need for accurate material models to simulate the deformation, damage, and failure of polymer matrix composites under impact conditions is becoming more and more critical, because these materials are gaining increased usage in the aerospace and automotive communities. Although there are several composite material models currently available within commercial transient dynamic finite-element codes, several features have been identified as lacking in these models, which could substantially enhance the predictive capability of composite impact simulations. One specific desired feature includes incorporating both plasticity and damage within the material model. Another desired feature relates to using experimentally based tabulated input to define the evolution of yield stresses, plastic strains, and damage parameters as opposed to specifying discrete input properties (such as modulus and strength) and using analytical functions to track the response of the material. To begin to address these needs, an orthotropic, macroscopic constitutive model incorporating both plasticity and damage is being developed for implementation within a commonly used commercial transient dynamic finite-element code. The plasticity model is based on extending the Tsai-Wu composite failure model into a strain hardening-based orthotropic plasticity model with a nonassociative flow rule. The evolution of the yield surface is determined based on tabulated stress-strain curves in the various normal and shear directions, and is tracked by using the effective plastic strain. To compute the evolution of damage, a strain-equivalent semicoupled formulation is used, in which a load in one direction results in a stiffness reduction in multiple material coordinate directions. A detailed analysis is carried out to ensure that the strain-equivalence assumption is appropriate for the derived plasticity and damage formulations that are used in the current model. Procedures to develop the appropriate input curves for the damage model are presented and the process required to develop an appropriate characterization test matrix is discussed.
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Acknowledgments
Canio Hoffarth, Bilal Khaled, and Subramaniam Rajan gratefully acknowledge the support of (1) the Federal Aviation Administration through Grant #12-G-001 titled “Composite Material Model for Impact Analysis,” William Emmerling, Technical Monitor, and (2) NASA through Contract Number NN15CA32C titled “Development and Implementation of an Orthotropic Plasticity Progressive Damage Model for Transient Dynamic/Impact Finite Element Analysis of Composite Structures,” Robert Goldberg, Contracting Officer Representative.
References
Barbero, E. J. (2013). Finite element analysis of composite materials using ABAQUS, CRC Press, Boca Raton, FL.
Bednarcyk, B. A., Stier, B., Simon, J.-W., Reese, S., and Pineda, E. J. (2015). “Meso- and micro-scale modeling of damage in plain weave composites.” Compos. Struct., 121(1), 258–270.
Chang, F.-K., and Chang, K.-Y. (1987). “A progressive damage model for laminated composites containing stress concentrations.” J. Compos. Mater., 21(9), 834–855.
Daniel, I. M., and Ishai, O. (2006). Engineering mechanics of composite materials, Oxford University Press, New York.
Gilat, A., Goldberg, R. K., and Roberts, G. D. (2002). “Experimental study of strain-rate-dependent behavior of carbon/epoxy composite.” Compos. Sci. Technol., 62(10–11), 1469–1476.
Goldberg, R., et al. (2015). “Development of an orthotropic elasto-plastic generalized composite material model suitable for impact problems.” J. Aerosp. Eng., 04015083.
Goldberg, R., Carney, K., DuBois, P., Hoffarth, C., Rajan, S., and Blankenhorn, G. (2016). “Analysis and characterization of damage utilizing an orthotropic generalized composite material model suitable for use in impact problems.” Proc., Earth and Space 2016: Engineering, Science, Construction, and Operations in Challenging Environments, ASCE, Reston, VA, 765–774.
Hallquist, J. (2013). LS-DYNA keyword user’s manual, version 970, Livermore Software Technology, Livermore, CA.
Harrington, J., et al. (2016). “Using virtual tests to complete the description of a three-dimensional orthotropic material.” J. Aerosp. Eng., 04017025.
Khan, A. S., and Huang, S. (1995). Continuum theory of plasticity, Wiley, New York.
Lemaitre, J., and Desmorat, R. (2005). Engineering damage mechanics: Ductile, creep and brittle failures, Springer, Berlin.
LS-DYNA version 971 [Computer software]. Livermore Software Technology Corporation, Livermore, CA.
Matzenmiller, A., Lubliner, J., and Taylor, R. L. (1995). “A constitutive model for anisotropic damage in fiber-composites.” Mech. Mater., 20(2), 125–152.
Ogasawara, O., Ishikawa, T., Yokozeki, T., Shiraishi, T., and Watanabe, N. (2005). “Effect of on-axis tensile loading on shear properties of an orthogonal 3D woven SiC/SiC composite.” Compos. Sci. Technol., 65(15–16), 2541–2549.
Salavatian, M., and Smith, L. V. (2014). “The effect of transverse damage on the shear response of fiber reinforced laminates.” Compos. Sci. Technol., 95(1), 44–49.
Simo, J. C., and Taylor, R. L. (1985). “Consistent tangent operators for rate-independent elastoplasticity.” Comput. Methods Appl. Mech. Eng., 48(1), 101–118.
Sun, C. T., and Chen, J. L. (1989). “A simple flow rule for characterizing nonlinear behavior of fiber composites.” J. Compos. Mater., 23(10), 1009–1020.
Voyiadjis, G. Z., and Park, T. (1995). “Anisotropic damage of fiber-reinforced MMC using overall damage analysis.” J. Eng. Mech., 1209–1217.
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©2018 American Society of Civil Engineers.
History
Received: Dec 9, 2016
Accepted: Nov 28, 2017
Published online: Mar 28, 2018
Published in print: Jul 1, 2018
Discussion open until: Aug 28, 2018
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