چكيده به لاتين
In the present study, lightning protection methods for polymer composites have been investigated. First, the fundamental physics of the problem was studied, and then the theory of percolation and percolation threshold, as well as their contributing variables, were described and evaluated in detail. To reduce polymer composite damage, lightning strike protection (LSP) was designed, and its properties were calculated using micromechanics models in the current study. Numerous research findings indicate that, when lightning strikes the composite surface, an electric current as well as an extensive amount of heat are generated. The composite’s electrical and thermal conductivity should be enhanced in order to minimize lightning-related damage. To accomplish this, the polymer matrix, reinforcing fibers, and nanostructures in the composite were evaluated, and several models of polymer composites with the ability to protect against lightning strikes were presented, each with its own strengths and limitations. To investigate these concepts in greater depth, the theory of electric percolation, a precise theory by which an optimal composite can be designed as a LSP, was investigated. In addition, the mechanical behavior of a multi-layer composite with LSP under the lightning strike was investigated, and the amount of damage caused was examined. The progressive damage model (PDM) was then used to determine the ultimate load of the samples. The phenomenon of air blast overpressure (ABO) due to lightning was also investigated.
