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

DOI: 10.33599/nasampe/s.20.0158

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 [1]–[3] 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 [4], [5] in order to demonstrate the effectiveness of the model and provide insight into where further improvements can be made in modelling technology.

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Conference: SAMPE 2020 | Virtual Series

Publication Date: 2020/06/01

SKU: TP20-0000000158

Pages: 15

Price: FREE