Harrell, Timothy, Michael, Thomsen, Ole and Barton, Janice (2017) Hybrid multiscale modelling to predict lightning damage on CFRP materials. ISEM 2017 - 2nd International Symposium on Multiscale Experimental Mechanics: Multiscale Fatigue, Copenhagen, Denmark. 08 - 09 Nov 2018. 1 pp .
Abstract
Carbon Fiber Reinforced Polymers (CFRPs) materials are increasingly being used in the wind turbine industry to reduce weight in turbine blades. However, CFRPs have a particular issue when dealing with lightning strikes because of their anisotropic material properties; in particular, their electrical and thermal conductivities. These issues cause significant damage when exposed to large electric currents. This paper presents a time dependent coupled thermal-electric joule heating model to predict the thermal damage of a CFRP panel when subjected to a lightning strike. The approach of this model uses volume fractions to determine the resulting fiber and resin damage separately. The damage prediction is calculated by a set of pyrolysis equations. The pyrolysis damage alters the materials properties of the elements. The electric current applied to the panel is the 10/350 standard waveform which corresponds to the waveform used to test wind turbines according to the IEC61400 section 24 Ed 1.0.
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- Faculties (pre 2018 reorg) > Faculty of Engineering and the Environment (pre 2018 reorg) > Southampton Marine & Maritime Institute (pre 2018 reorg)
- Current Faculties > Faculty of Engineering and Physical Sciences > School of Engineering > Civil, Maritime and Environmental Engineering > Infrastructure Group
Civil, Maritime and Environmental Engineering > Infrastructure Group - Current Faculties > Faculty of Engineering and Physical Sciences
- Current Faculties > Faculty of Engineering and Physical Sciences > School of Engineering > Mechanical Engineering > Engineering Materials and Surface Engineering Group
Mechanical Engineering > Engineering Materials and Surface Engineering Group
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