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M. Schwab, H. E. Pettermann:
"Prediction of the Energy Absorption Behaviour of Large Composite Components Subjected to Impact Loads - Assessment of Individual Mechanisms at Ply Scale";
Vortrag: ECCM17 - 17th European Conference on Composite Materials, München; 26.06.2016 - 30.06.2016; in: "ECCM17 - 17th European Conference on Composite Materials", K. Drechsler (Hrg.); European Society for Composite Materials, (2016), ISBN: 978-3-00-053387-7; Paper-Nr. TUE-2_BIA_3.11-22, 7 S.

An effcient modelling strategy for simulating impact on structural components built from laminated composites is presented. The utilisation of a multiscale embedding approach in combination with shell element based modelling allows to keep the computational effort within reasonable bounds. Thereby, a highly resolved subsection is placed at the region where impact and associated material nonlinearities are expected to occur. Regions remote from the impact zone are modelled by a common laminate approach. The approach is demonstrated by modelling a composite fan containment casing of a jet engine subjected to fan blade out. The simulations are conducted using an explicit Finite Element Method solver. Detailed insight into the components behaviour during the fan blade out event is gained. Eventually, conclusions drawn from such predictions contribute to improvements in the design of impact loaded composite components.