Open AccessInvestigation of composite material destruction under lightning stroke effect
Author(s) -
Vitaliy N. Boronin,
Tatiana G. Minevich,
Елена Кочеткова,
Alexander Smorgonskiy,
Ivan S. Kolodkin
Publication year - 2019
Publication title -
iop conference series. materials science and engineering
Language(s) - English
Resource type - Journals
eISSN - 1757-899X
pISSN - 1757-8981
DOI - 10.1088/1757-899x/643/1/012123
Subject(s) - delamination (geology) , composite number , lightning (connector) , materials science , composite material , damages , stroke (engine) , lightning strike , lightning arrester , geology , engineering , physics , mechanical engineering , electrical engineering , power (physics) , quantum mechanics , paleontology , political science , law , subduction , tectonics
Destruction processes of composite materials under lightning stroke effect have been studied. The results of characteristic damages of samples have been presented upon a series of tests conducted with standard lightning currents and those ones whose shape is close to actual lightning stroke. There have been exhibited distinctions between the levels of sample damages: in the second case significant damages of composite matrix external layers have been shown, among which multiple destructions of bundles of carbon fibers at a depth of several layers, layer delamination and cavities formed inside sample. There have been described the results of generalized analysis of damages obtained by applying nondestructive inspection methods: stereoscopic microscope investigation and X-ray microtomography. The mechanism of damages has been presented on the basis of obtained data. The results of testing electrical, mechanical, thermal properties of composite samples have been given upon a set of experiments for lightning current resistance.