Nonlinear numerical modelling of lightning strike effect on composite panels with temperature dependent material properties

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Abstract

This paper presents a physics based modelling procedure to predict the thermal damage of composite material when struck by lightning. The procedure uses the Finite Element Method with non-linear material models to represent the extreme thermal material behaviour of the composite material (carbon/epoxy) and an embedded copper mesh protection system. Simulation predictions are compared against published experimental data, illustrating the potential accuracy and computational cost of virtual lightning strike tests and the requirement for temperature dependent material modelling. The modelling procedure is then used to examine and explain a number of practical solutions to minimize thermal material damage.
Original languageEnglish
Pages (from-to)268-278
Number of pages11
JournalComposite Structures
Volume109
DOIs
Publication statusPublished - 01 Mar 2014

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