Validating Discharge and Ground Electrode Effect on the Lightning Strike Damage of Materials and its Implication to Composite Structures by Modeling Lightning Discharge

Kamran Yousefpour, Youssef Aider, Yeqing Wang, Mojtaba Rostaghi-Chalaki, Chanyeop Park

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

The importance of lightning strike damage tolerance is growing as metal components are increasingly being replaced with composite materials that provide light weight and high structural strength. However, the lightning strike damage evaluation methods used in laboratories are prone to misinterpretation due to the lack of specific assessment guidelines in the standards. Previously, we have shown that lightning strike damage could appear to be more or less severe depending on the size of discharge electrode and the configuration of ground electrode. In this study, we numerically show the effect of testbed configuration on the temperature of lightning arc channel and test samples assuming continuous discharge current. We use COMSOL Multiphysics, a Finite Element Analysis (FEA) tool, for the modeling of lightning arc discharge. The results of the simulation are compared with the experimental results to fundamentally understand the impact of lightning channel diameter and ground electrode configuration on the lightning strike damage evaluation of the composite samples. The results of this study aid in the development of standards for lightning strike damage evaluation.

Original languageEnglish (US)
Title of host publication2021 Electrical Insulation Conference, EIC 2021
PublisherInstitute of Electrical and Electronics Engineers Inc.
Pages226-229
Number of pages4
ISBN (Electronic)9781665415644
DOIs
StatePublished - 2021
Event2021 Electrical Insulation Conference, EIC 2021 - Virtual, Online, United States
Duration: Jun 7 2021Jun 28 2021

Publication series

Name2021 Electrical Insulation Conference, EIC 2021

Conference

Conference2021 Electrical Insulation Conference, EIC 2021
Country/TerritoryUnited States
CityVirtual, Online
Period6/7/216/28/21

Keywords

  • Carbon Fiber Reinforced Polymer (CFRP) Matrix Composite
  • Electric Arc Discharge
  • Finite Element Analysis (FEA)
  • Lightning Strike

ASJC Scopus subject areas

  • Electrical and Electronic Engineering
  • Safety, Risk, Reliability and Quality
  • Electronic, Optical and Magnetic Materials
  • Mechanical Engineering

Fingerprint

Dive into the research topics of 'Validating Discharge and Ground Electrode Effect on the Lightning Strike Damage of Materials and its Implication to Composite Structures by Modeling Lightning Discharge'. Together they form a unique fingerprint.

Cite this