artificial lightning testing on graphite epoxy composite

Lightning Strike Protection For Composite Structures

A molded carbon fiber/epoxy engine cowling for Adam Aircraft's A500 twin-engine prop plane features an outer layer of layer of copper mesh (inset) for lightning strike protection. Lightning strike test results for a Kevlar composite panel protected with expanded

The Effect of Lightning Strikes on Bismaleimide

The composite samples used in this work are based on carbon fiber/bismaleimide system. The analysis of the dynamic mechanical data demonstrate the glass transition temperature of the composites increased as a function of increasing lightning current, simultaneity with the presence ofpotential damage, whichare result in higher network cross-link density and the incipent degradation of the

[PDF] Artificial neural network approach for the prediction

Artificial neural networks have emerged as a good candidate to mathematical wear models, due to their capabilities of handling nonlinear behavior, learning from experimental data and generalization. In the present work the potential of using neural networks for the prediction of abrasive wear properties of unfilled and graphite filled carbon fabric reinforced epoxy composite under various

Figure 4 from Lightning direct effect experimental

Lightning protection design of the main rotor blade - Lightning direct effect experimental research on rotor blade of a helicopter Artificial lightning testing on graphite/epoxy composite laminate Y. Hirano, Shingo Katsumata, Y. Iwahori, A. Todoroki 2010 189

Advanced Graphite Composites in the 757/767

Composite materials, mainly fiberglass in an epoxy matrix, have been used in Boeing military and commercial aircraft in ever increasing amounts for the past twenty (plus) years. Recently, the state-of-the-art of Advanced Composites (graphite and graphite/Kevlar hybrids in an epoxy matrix) progressed to the level that it could be committed to full-scale production.

NASA Technical Reports Server (NTRS)

2013/9/6Current carrying capability of graphite epoxy is adequate for dissipation static charges, but fault currents through graphite epoxy may cause fire at the shorting contact and at joints. The effect of lightning on selected graphite epoxy material and mating surfaces is

Damage of Carbon/Epoxy Composite Plates Subjected

Damage resistance of CSA-doped PANI/epoxy CFRP composite during passing the artificial lightning through the aircraft rivet Engineering Failure Analysis, Vol. 82 Lightning Strike Ablation Damage Influence Factors Analysis of Carbon Fiber/Epoxy Composite Based on

AN ASSESSMENT TAILORING OF LIGHTNING PROTEcIlON DESIGN FOR A COMPOSITE

graphite/epoxy structures are connected to the inner wing by metal rivets. They are present in the wet wing area (fuel is contained behind these panels) as well as other areas which do not contain fuel. The composite panels do not conduct electricity as they

Lightning Protection of Carbon Fibre Reinforced Plastics An Overview

Experimental work on assessing the behaviour of graphite epoxy composites to lightning attachment has been already carried out in the late 70ties [17]. The results of all lightning tests conducting showed that there is "no measureable difference in".

Lightning direct effect experimental research on rotor

The lightning protection performance of the carbon fiber composite (CFC) main rotor blade of a helicopter is studied by using high-voltage large-current generators. According to the lightning zoning of this helicopter, the blade tip of the main rotor blade was considered belonging to lightning Zone 1A, the blade airfoil part and the blade root of main rotor blade were considered belonging to

NASA Technical Reports Server (NTRS)

The vertical fin cap was chosen for the study of lightning strike attachments on composite structures of four different types: (1) glass/epoxy with flame-sprayed aluminum; (2) Kevlar/epoxy with aluminized glass cloth; (3) graphite-epoxy without lightning protection

Ablation damage characteristic and residual strength

Abstract Ablation damage characteristic of carbon fiber/epoxy composite laminate suffered from lightning strike was studied by the coupled thermal–electrical–structural analysis and element deletion. Residual strength of composite laminate after lightning strike ablation was globally predicted by Hashin criterion. Results show that lightning ablation effects decrease with the increasing

Fracture Behavior of CFRP Laminate under Artificial

This paper examines the fundamental fracture behavior of CFRP laminate due to lightning strikes. In order to clarify the influence of lightning parameters and specimen size variations, the comparative results of performing artificial lightning strike testing on a series of laminated composite

Advanced Graphite Composites in the 757/767

Composite materials, mainly fiberglass in an epoxy matrix, have been used in Boeing military and commercial aircraft in ever increasing amounts for the past twenty (plus) years. Recently, the state-of-the-art of Advanced Composites (graphite and graphite/Kevlar hybrids in an epoxy matrix) progressed to the level that it could be committed to full-scale production.

NASA Technical Reports Server (NTRS)

The vertical fin cap was chosen for the study of lightning strike attachments on composite structures of four different types: (1) glass/epoxy with flame-sprayed aluminum; (2) Kevlar/epoxy with aluminized glass cloth; (3) graphite-epoxy without lightning protection

NASA Technical Reports Server (NTRS)

The vertical fin cap was chosen for the study of lightning strike attachments on composite structures of four different types: (1) glass/epoxy with flame-sprayed aluminum; (2) Kevlar/epoxy with aluminized glass cloth; (3) graphite-epoxy without lightning protection

Artificial lightning strike tests on PRSEUS panels

2018/12/1Artificial lightning testing on graphite/epoxy composite laminate Compos Appl Sci Manuf, 41 (10) (2010), pp. 1461-1470 Article Download PDF View Record in Scopus Google Scholar P. Feraboli, H. Kawakami Damage of carbon/epoxy composite plates J Aircraft

AERO

A composite structure also results in less nonroutine maintenance. The 777 floor structure is all composite and highlights the advantages of this material when applied in a harsh environment. Airline operators are aware of the fatigue cracking and corrosion difficulties experienced with traditional aluminum floor beams.

Artificial lightning testing on graphite/epoxy composite

This study examines the evolution of damage in graphite/epoxy composite laminates due to lightning strikes. To clarify the influence of lightning parameters and specimen size, artificial lightning testing was performed on a series of laminated composite specimens.

Effects of Graphene Nanoplatelets on the Lightning Strike Damage Response of Carbon Fiber Epoxy Composite

Effects of Graphene Nanoplatelets on the Lightning Strike Damage Response of Carbon Fiber Epoxy Composite Laminates WENHUA LIN, BODIUZZAMAN JONY, KAMRAN YOUSEFPOUR, YEQING WANG, CHANYEOP PARK and

Experimental and Numerical Simulation Analysis of Typical

To clarify the evolution of damage for typical carbon woven fabric/epoxy laminates exposed to lightning strike, artificial lightning testing on carbon woven fabric/epoxy laminates were conducted, damage was assessed using visual inspection and damage peeling approaches. Relationships between damage size and action integral were also elucidated. Results showed that damage appearance of carbon

Effects of heavy lightning strikes on pristine and repaired

Hirano, Y, Katsumata, S, Iwahori, Y Artificial lightning testing on graphite/epoxy composite laminate. Compos Part A 2010; 41: Feraboli, P, Miller, M. Damage resistance and tolerance of carbon/epoxy composite coupons subjected to simulated lightning strike

Lightning Effects Relating to Aircraft. Part 1. Lightning

An investigation employing both destructive and nondestructive testing techniques affirms that lightning-produced currents adversely affect boron-and graphite- reinforced epoxy composites for aircraft. A majority of the coatings tested to determine their ability to protect composites in a lighting environment actually aggravated composite deterioration. To mitigate lightning damage, composite

SANDWICH COMPOSITE, SYNTACTIC FOAM CORE BASED,

AGP370-8H/3501-6 (AS4/3501-6) graphite/epoxy encapsulate a core of 3M SC350G syntactic foam. An aluminum mesh covers the outer skin for lightning protection. A significant amount of mechanical and thermal property testing was performed on the

AN ASSESSMENT TAILORING OF LIGHTNING PROTEcIlON DESIGN FOR A COMPOSITE

graphite/epoxy structures are connected to the inner wing by metal rivets. They are present in the wet wing area (fuel is contained behind these panels) as well as other areas which do not contain fuel. The composite panels do not conduct electricity as they

Nondestructive Testing (NDT) Portal Open Access Archive

graphite/epoxy samples with embedded Teflon inserts. Q (x, y, τ) x z hR F - surface R-surface hF y b d Fig. 3. 3D modeling of defects in graphite/epoxy composite Table 2. Modeling thermal NDT of a 5 mm-thick graphite/epoxy composite l, mm d, mm h, mm

Development of an experimental setup to study

To experimentally simulate the lightning discharge, an impulse current generator was designed and tuned to produce the artificial lightning discharges at 50, 125, and 200 kA nominal peak currents for lightning effects testing on composite structures.

AERO

A composite structure also results in less nonroutine maintenance. The 777 floor structure is all composite and highlights the advantages of this material when applied in a harsh environment. Airline operators are aware of the fatigue cracking and corrosion difficulties experienced with traditional aluminum floor beams.

Modeling Lightning Impact Thermo

2014/1/30Moreover, this traditional sizing method is based on vast experimental campaigns carried out by subjecting composite panels to simulated lightning strike events. While this method has proven its validity, and is necessary for certification of the structure, it may be optimized with the aid provided by physically based numerical models.

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