A method to replace lightning strike tests by ball impacts in the design process of lightweight composite aircraft panels - Archive ouverte HAL Access content directly
Journal Articles International Journal of Impact Engineering Year : 2018

A method to replace lightning strike tests by ball impacts in the design process of lightweight composite aircraft panels

Abstract

Composite material aircrafts are protected against lightning on the basis of complex and expansive lightning strike experimental plans aiming at designing optimal protections. The paper aims at reducing the number of lightning strike tests on protected and painted composite panels. An analytical calculation is presented that gives the characteristics of an equivalent mechanical impact configuration based on an assessment of the typical time scale of energy deposit and kinematic behaviour during a lightning strike test. The paper presents our analytical hypotheses and calculations, as well as experimental lighting strikes and mechanical impact settings and results. The method is shown to give an acceptable approximation of both the kinematics and the delamination surface.
Fichier principal
Vignette du fichier
Soulas_23957.pdf (1.61 Mo) Télécharger le fichier
Origin : Files produced by the author(s)
Loading...

Dates and versions

hal-01940478 , version 1 (07-06-2019)

Identifiers

Cite

F. Soulas, Christine Espinosa, Frederic Lachaud, S. Guinard, Bruno Lepetit, et al.. A method to replace lightning strike tests by ball impacts in the design process of lightweight composite aircraft panels. International Journal of Impact Engineering, 2018, 111, pp.165-176. ⟨10.1016/j.ijimpeng.2017.09.007⟩. ⟨hal-01940478⟩
142 View
103 Download

Altmetric

Share

Gmail Facebook X LinkedIn More