Concerns of corrosive effects with respect to lightning protection systems

Ghavamian, Aidin; Maghami, Mohammad Reza; Dehghan, Shayan; Gomes, Chandima

doi:10.1016/j.engfailanal.2015.08.019

Cited by 30 publications

(11 citation statements)

References 29 publications

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“…Conventional lightning strike mitigation (LSM) systems consist of a layer of copper or aluminum mesh to improve the surface conductivity of the composites and prevent excessive lightning damage. [9][10][11] The use of metals is often undesirable because of their weight and machinability constraints. Recently several approaches being taken to replace metal with modified CFRP.…”

Section: Introductionmentioning

confidence: 99%

Polyaniline doped graphene thin film to enhance the electrical conductivity in carbon fiber-reinforced composites for lightning strike mitigation

Lamichhane

Dhakal

Chaudhari

et al. 2021

Journal of Composite Materials

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Multifunctional carbon fiber-reinforced polymer (CFRP) composites are promising structural materials for lightweight applications. However, the low conductivity in the through-thickness direction of the composites limits its applications in the fields that require the high stability of composite against lightning strikes. This work presents the study on the synergetic effect of conducting polymer, polyaniline (PANI), and graphene nanoplatelets (GNP) for increasing the electrical conductivity of CFRP composites. PANI doped GNP flexible film is fabricated with the aid of compatible polymer polyvinylpyrrolidone (PVP), and its effect on the electrical conductivity of CFRP composites has been studied. About 250% in through-thickness conductivity has improved with 11 wt% GNP as a function of the composite. The incorporation of conductive film not only increases the conductivity of the CFRP laminates but also enhances the resistance against lightning strikes. Scanning Electron Microscopy (SEM), Thermogravimetric Analysis (TGA), three-point bending tests were used to analyze the morphology, thermal stability, and mechanical strengths of the composites. Finally, the observation of post-strike damage confirms the importance of through-thickness conductivity for mitigating the lightning strike damage.

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Section: Introductionmentioning

confidence: 99%

Polyaniline doped graphene thin film to enhance the electrical conductivity in carbon fiber-reinforced composites for lightning strike mitigation

Lamichhane

Dhakal

Chaudhari

et al. 2021

Journal of Composite Materials

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“…Em torres de linhas de transmissão estaiadas a corrosão, devido ao contato do sistema de ancoragem com o solo corrosivo, pode levar à perda de sustentação e, até mesmo, a sua queda, podendo resultar no colapso do fornecimento de energia elétrica ocasionando custos diretos e indiretos às empresas do setor elétrico e à sociedade [3] [4] . Além disso, um recente estudo evidenciou aspectos relacionados a corrosão do sistema de aterramento no setor elétrico e a suscetibilidade a corrosão dos materiais frequentemente utilizados [5]. Zhang e colaboradores desenvolveram um método para avaliar a corrosão do sistema de aterramento em solo, baseado na sua resistência e na resistividade do solo [6].…”

Section: Introduçaounclassified

Resistividade Do Solo De Linhas De Transmissão Por Espectrospia De Impedância Eletroquímica (Eis) / Soil Resistivity of Transmission Lines by Electrochemical Impedance Spectrospy (Eis)

Matos

Portella

Henke

et al. 2020

BJD

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“…[10] Galvanic corrosion of these metallic LSPs is another primary concern. [11] Therefore, in recent years, more efforts have been dedicated to seeking an alternative LSP material. Researchers have reported various conductive filler systems as candidates for highly conductive LSP coating.…”

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confidence: 99%

MXene Reinforced Thermosetting Composite for Lightning Strike Protection of Carbon Fiber Reinforced Polymer

Kumar

Yeole

Majed

et al. 2021

Adv Materials Inter

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and high specific strength are required attributes. [1] CFRP composites have gained popularity, and they are already dominating the aerospace and wind energy industries. [2,3] CFRP incorporation in future transport vehicles, such as urban air mobility (UAM), is also growing. [4] CFRPs can replace their metal counterparts in applications where specific strength is desired but not in applications where other properties such as high electrical conductivity are required. Lightning strikes on aircraft and wind turbine structures are serious concerns, specifically, if the structures are made of CFRP composites. [5,6] During a lightning strike, a massive surge of electric current passes through the structures. If the structure does not possess enough electrical conductivity to dissipate the incident current, these structures can be destroyed due to the extreme amount of heat produced by the resistive heating or Joule's heating. [7] CFRP composites' low electrical conductivity (in through-thickness direction ≈ 0.01 S cm −1 ) makes them highly vulnerable to lightning strikes. [8] A common remedy is to protect the less-conductive CFRP using highly conductive coatings.Current commercial lightning strike protection (LSP) technologies in the aerospace industry are mainly composed of Ti 3 C 2 -a member of the MXenes (2D transition metal carbides and nitrides) family, is investigated as an effective filler to improve the electrical, mechanical, and thermal properties of divinylbenzene (DVB) thermosetting resin. Consequently, its performance as a lightning strike protection (LSP) coating for carbon fiber reinforced polymer (CFRP) is evaluated. Polyaniline (PANI)dodecylbenzene sulfonic acid (DBSA) complex is used to cure the DVB resin. The synergic effect of MXenes (with surface that is negatively charged) with polyaniline (positive charge) shows electrostatic bonding and improved electrical conductivity in the composite. The addition of MXenes at 2 wt% into the PANI-DVB composite shows ≈139%, 10%, and 9% improvement in electrical conductivity, flexural strength, and flexural modulus, respectively, compared to the neat PANI-DVB composite. The composites are investigated using various material characterization techniques including Fourier transforms infrared spectroscopy, thermogravimetric analysis, differential scanning calorimetry, and scanning electron microscopy. Furthermore, MXenes-DVB is utilized to create a conductive thermosetting coating on top of a CFRP substrate and tested against a lightning strike of 100 kA. CFRP with MXenes-DVB coating reduced the surface damage from 40.61 cm 2 (reference CFRP panel) to 13.29 cm 2 (CFRP coated with MXenes-DVB).

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Concerns of corrosive effects with respect to lightning protection systems

Cited by 30 publications

References 29 publications

Polyaniline doped graphene thin film to enhance the electrical conductivity in carbon fiber-reinforced composites for lightning strike mitigation

Polyaniline doped graphene thin film to enhance the electrical conductivity in carbon fiber-reinforced composites for lightning strike mitigation

Resistividade Do Solo De Linhas De Transmissão Por Espectrospia De Impedância Eletroquímica (Eis) / Soil Resistivity of Transmission Lines by Electrochemical Impedance Spectrospy (Eis)

MXene Reinforced Thermosetting Composite for Lightning Strike Protection of Carbon Fiber Reinforced Polymer

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