Title: Transverse Impact Simulation of CFRP Panels Using a Continuum Damage Mechanics Model in LS-DYNA
Authors: Scott J. Nesbitt, Sahar Abouali, Johannes Reiner, Anoush Poursartip and Reza Vaziri
Abstract: Impact damage prediction of non-crimp fabric CFRP panels is an area of interest for both automotive and aeronautical manufacturers. The University of British Columbia has been developing models to predict damage in composite materials since the mid 1990’s – and has had the CODAM2 model implemented as MAT219 in the commercial FE program LS-DYNA since 2011. In this paper, an end-to-end view is given of how to characterize composite materials to provide the inputs necessary for modelling with CODAM2 and the cohesive zone method. This includes an overview of the necessary test methods, post-test calibration procedures of the model, and subsequent application of the model to transverse impact simulations of a non-crimp fabric CFRP plate. The results from the simulations are compared with experimental data ,  in order to demonstrate the effectiveness of the model and provide insight into where further improvements can be made in modelling technology.
References:  K. V. Williams, R. Vaziri, and A. Poursartip, “A physically based continuum damage mechanics model for thin laminated composite structures,” Int. J. Solids Struct., vol. 40, no. 9, pp. 2267–2300, May 2003, doi: 10.1016/S0020-7683(03)00016-7.  A. Forghani, A. Poursartip, and R. Vaziri, “An orthotropic non-local approach to modeling intra-laminar damage progression in laminated composites,” Int. J. Solids Struct., vol. 180–181, pp. 160–175, Dec. 2019, doi: 10.1016/J.IJSOLSTR.2019.07.015.  M. Shahbazi, “An efficient virtual testing framework to simulate the progression of damage in notched composite laminates,” The University of British Columbia, 2017, doi: 10.14288/1.0354263.  S. Nesbitt, R. Vaziri, and A. Poursartip, “Characterization of the Structural Response and Energy Absorption Characteristics of Braided and Non‐Crimp Fabric CFRP Panels Subjected to Transverse Impact Loadings at Variable Strain Rates,” in 4th International Aerospace Structural Impact Dynamics Conference, 2019.  S. Nesbitt, M. Waimer, N. Toso-Pentecôte, R. Vaziri, and A. Poursartip, “Structural Response and Damage Characterisation of Non-Crimp Fabric CFRP Panels under Impact Loading,” in 11th Canadian-International Conference on Composites, 2019.  “D792-13 Standard Test Methods for Density and Specific Gravity (Relative Density) of Plastics by Displacement.” ASTM International, West Conshohocken, PA, 2013, doi: https://doi.org/10.1520/D0792-13.  D. Adams, “Unidirectional composite axial tensile specimens,” CompositesWorld, 2006. [Online]. Available: https://www.compositesworld.com/articles/unidirectional-composite-axial-tensile-specimens. [Accessed: 15-Jan-2020].  D. Adams, “Composite material testing: How do I know if my measured composite properties are correct, or even reasonable?,” CompositesWorld, 2018. [Online]. Available: https://www.compositesworld.com/blog/post/how-do-i-know-if-my-measured-composite-properties-are-correct-or-even-reasonable. [Accessed: 15-Jan-2020].  “D3039-17 Standard Test Method for Tensile Properties of Polymer Matrix Composite Materials.” ASTM International, West Conshohocken, PA, 2017, doi: https://doi.org/10.1520/D3039_D3039M-17.  “D3410-16 Standard Test Method for Compressive Properties of Polymer Matrix Composite Materials with Unsupported Gage Section by Shear Loading.” ASTM International, West Conshohocken, PA, 2016, doi: https://doi.org/10.1520/D3410_D3410M-16.  “D6641-16 Standard Test Method for Compressive Properties of Polymer Matrix Composite Materials Using a Combined Loading Compression (CLC) Test Fixture.” ASTM International, West Conshohocken, PA, 2016, doi: https://doi.org/10.1520/D6641_D6641M-16E01.  “D7264-15 Standard Test Method for Flexural Properties of Polymer Matrix Composite Materials.” 2015, doi: https://doi.org/10.1520/D7264_D7264M-15.  D. Adams, “A comparison of shear test methods,” CompositesWorld, 2009. [Online]. Available: https://www.compositesworld.com/articles/a-comparison-of-shear-test-methods. [Accessed: 14-Jan-2020].  “D5379-12 Standard Test Method for Shear Properties of Composite Materials by the V-Notched Beam Method.” ASTM International, West Conshohocken, PA, 2012, doi: https://doi.org/10.1520/D5379_D5379M-19.  “D7078-19 Standard Test Method for Shear Properties of Composite Materials by V-Notched Rail Shear Method.” ASTM International, West Conshohocken, PA, 2019, doi: https://doi.org/10.1520/D7078_D7078M-19.  D. Adams, “Shear test methods: Iosipescu vs. V-Notched Rail,” CompositesWorld, 2009. [Online]. Available: https://www.compositesworld.com/articles/shear-test-methods-iosipescu-vs-v-notched-rail. [Accessed: 14-Jan-2020].  Z. P. Bazant and J. Planas, Fracture and Size Effect in Concrete and Other Quasibrittle Materials. Boca Raton: CRC Press LLC, 1998.  “D5045-14 Standard Test Methods for Plane-Strain Fracture Toughness and Strain Energy Release Rate of Plastic Materials.” ASTM International, West Conshohocken, PA, 2014, doi: https://doi.org/10.1520/D5045-14.  I. Kongshavn and A. Poursartip, “Experimental investigation of a strain-softening approach to predicting failure in notched fibre-reinforced composite laminates,” Compos. Sci. Technol., vol. 59, no. 1, pp. 29–40, Jan. 1999, doi: 10.1016/S0266-3538(98)00034-7.  N. Zobeiry, R. Vaziri, and A. Poursartip, “Characterization of strain-softening behavior and failure mechanisms of composites under tension and compression,” Compos. Part A Appl. Sci. Manuf., vol. 68, pp. 29–41, Jan. 2015, doi: 10.1016/J.COMPOSITESA.2014.09.009.  Y. Yuan, K. Niu, and Z. Zhang, “Compressive damage mode manipulation of fiber-reinforced polymer composites,” Eng. Fract. Mech., vol. 223, p. 106799, Jan. 2020, doi: 10.1016/J.ENGFRACMECH.2019.106799.  J. Reiner and R. Vaziri, “Local and Nonlocal Continuum Damage Simulation of Impact and Compression After Impact Tests on CFRP Laminates,” in 22nd International Conference on Composite Materials (ICCM22), 2019.  R. Olsson, “Mass criterion for wave controlled impact response of composite plates,” Compos. Part A Appl. Sci. Manuf., vol. 31, no. 8, pp. 879–887, Aug. 2000, doi: 10.1016/S1359-835X(00)00020-8.  W. J. Cantwell and J. Morton, “Comparison of the low and high velocity impact response of CFRP,” Composites, vol. 20, no. 6, pp. 545–551, Nov. 1989, doi: 10.1016/0010-4361(89)90913-0.  H. Morita, T. Adachi, Y. Tateishi, and H. Matsumot, “Characterization of Impact Damage Resistance of CF/PEEK and CF/Toughened Epoxy Laminates under Low and High Velocity Impact Tests,” J. Reinf. Plast. Compos., vol. 16, no. 2, pp. 131–143, Jan. 1997, doi: 10.1177/073168449701600203.  “D7291-15 Standard Test Method for Through-Thickness ‘Flatwise’ Tensile Strength and Elastic Modulus of a Fiber-Reinforced Polymer Matrix Composite Material.” ASTM, West Conshohocken, PA, 2015, doi: https://doi.org/10.1520/D7291_D7291M-15.  “D2344-16 Standard Test Method for Short-Beam Strength of Polymer Matrix Composite Materials and Their Laminates.” ASTM International, West Conshohocken, PA, 2016, doi: https://doi.org/10.1520/D2344_D2344M-16.  “D5528-13 Standard Test Method for Mode I Interlaminar Fracture Toughness of Unidirectional Fiber-Reinforced Polymer Matrix Composites BT - Standard Test Method for Mode I Interlaminar Fracture Toughness of Unidirectional Fiber-Reinforced Polymer Matrix.” ASTM International, West Conshohocken, PA, 2013, doi: https://doi.org/10.1520/D5528-13.  J. Reiner, J. P. Torres, and M. Veidt, “A novel Top Surface Analysis method for Mode I interface characterisation using Digital Image Correlation,” Eng. Fract. Mech., vol. 173, pp. 107–117, Mar. 2017, doi: 10.1016/J.ENGFRACMECH.2016.12.022.  D. Liu, “Impact-Induced Delamination—A View of Bending Stiffness Mismatching,” J. Compos. Mater., vol. 22, no. 7, pp. 674–692, Jul. 1988, doi: 10.1177/002199838802200706.  “D7905-14 Standard Test Method for Determination of the Mode II Interlaminar Fracture Toughness of Unidirectional Fiber-Reinforced Polymer Matrix Composites BT - Standard Test Method for Determination of the Mode II Interlaminar Fracture Toughness of Uni.” ASTM International, West Conshohocken, PA, 2014, doi: https://doi.org/10.1520/D7905_D7905M-19E01.  J. Reiner and R. Vaziri, “Structural Analysis of Composites With Finite Element Codes: An Overview of Commonly Used Computational Methods,” in Comprehensive Composite Materials II, vol. 8, P. W. R. Beaumont and C. H. Zweben, Eds. Elsevier Ltd., 2018, pp. 61–84.  A. Forghani, M. Shahbazi, N. Zobeiry, A. Poursartip, and R. Vaziri, “An overview of continuum damage models used to simulate intralaminar failure mechanisms in advanced composite materials,” in Numerical Modelling of Failure in Advanced Composite Materials, P. P. Camanho and S. R. Hallett, Eds. Woodhead Publishing, 2015, pp. 151–173.  A. S. Kaddour, M. J. Hinton, P. A. Smith, and S. Li, “The background to the third world-wide failure exercise,” J. Compos. Mater., vol. 47, no. 20–21, pp. 2417–2426, Sep. 2013, doi: 10.1177/0021998313499475.  A. Forghani, N. Zobeiry, A. Poursartip, and R. Vaziri, “A structural modelling framework for prediction of damage development and failure of composite laminates,” J. Compos. Mater., vol. 47, no. 20–21, pp. 2553–2573, Sep. 2013, doi: 10.1177/0021998312474044.
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