A Numerical and Experimental Study on the Impact Behavior of a Carbon-Fiber-Reinforced Thermoplastic Poly (Methyl Methacrylate) Composite
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The goal of the present study was to investigate the low-speed impact behavior and damage patterns of carbonfiber-reinforced methyl methacrylate composites. The process of low-speed impact damage in the composites was simulated using the finite-element method and verified experimentally. Orthotropic plane stress conditions of a homogenized lamina were used to model the composite structures. The evolution of damage was simulated, using the LS-DYNA finite-element code, by material models MAT58 based on the Matzenmiller damage mechanics model with four Hashin failure criteria and MAT54 based on four Chang-Chang failure criteria. The damage variables were determined calibrating the numerical model according to the experimental data of three-pointbending and impact tests. Detailed quantitative comparisons were carried out between the delaminated areas simulated by the model and those characterized experimentally by the ultrasonic C-Scan method. Results of the numerical analyses demonstrated their good agreement with experimental data in terms of contact force histories, peak forces, absorbed energy, and projected damage area.
Keywordscarbon-fiber-reinforced composite numerical modeling impact behavior damage
The research was partially funded by M-era.Net project “NANO2COM - Adavanced Polymer Composites Filled with Novel 2D Nanoparticles,” grants No. S-M-ERA.NET-18-1 of the Research Council of Lithuania, No. 184.108.40.206/ERANET/18/02 of the Latvian State Education Development Agency.
- 2.D. A. Berry, “Composite materials for orthotics and prosthetics,” Orthotics Prosthet, 40, No. 4, 35–43 (1986).Google Scholar
- 11.J. O. Hallquist, LS-DYNA Theoretical Manual, Livermore Software Technology Corporation (2015).Google Scholar
- 15.R. Talreja, in A. S. D. Wang, and G. K. Haritos (eds), Damage Mechanics in Composites, ASME AD, Vol. 12 (1987), 11-16.Google Scholar
- 21.K. Schweizerhof, K. Weimer, Th. Münz, and Th. Rottner, “Crashworthiness analysis with enhanced composite material models in LS-DYNA – merits and limits,” in Proceedings of the 5th International LS-DYNA Users Conference, Southfield, MI, September 21-22 (1998).Google Scholar
- 27.G. Marazas, V. Jankauskaite, D. Zeleniakiene, and D. Milasiene, “Stress distribution in soft polymer laminates,” Mater. Sci.-Medzg., 13, No. 1, 43-46 (2007).Google Scholar
- 32.A. K. Kaw, Mechanics of Composite Materials, CRC Press, Taylor & Francis Group (2006).Google Scholar
- 34.S. P. Rajbhandari, M. L. Scott, R. S. Thomson, and D. Hachenberg, “An approach to modelling and predicting impact damage in composite structures,” 23rd Congr. of Int. Council of the Aeronautical Sciences, 8-13 September, 2002, Toronto, Canada, Paper ICAS 2002-8.6.2, 1-10.Google Scholar