High-velocity impact deformation and perforation of fibre metal laminates

Kaboglu, Cihan; Mohagheghian, Iman; Zhou, Jin; Guan, Zhongwei; Cantwell, Wesley; John, Sabu; Blackman, B.R.K.; Kinloch, A. J.; Dear, John P.

doi:10.1007/s10853-017-1871-2

Cited by 48 publications

(21 citation statements)

References 34 publications

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“…Second, the amount of energy dissipated by the thin interface region is negligibly small compared to the overall absorbed energy of the TFML panel. Thus, the resultant characteristic curves and damage locus shows rather significant variation for the samples, irrespective of the degree of interface adhesion [34].…”

Section: Initial and Boundary Conditionsmentioning

confidence: 91%

A Numerical Study on High Velocity Impact Behavior of Titanium Based Fiber Metal Laminates

Chai

Manikandan

2018

J. Compos. Sci.

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The present paper gives details of the structural response of titanium-based fiber metal laminates (TFML) subjected to high velocity impact. Dynamic perforation behavior of two different sample configurations, TFML-2/1 and 3/2 are presented. The behavior of the metal and composite layer is defined using two independent appropriate constitutive material models. Both experimental and numerically predicted residual velocity follows the Recht-Ipson model variation with impact velocity. Being larger in thickness, residual velocity, peak contact force and total energy absorbed were found to be larger for TFML-3/2 than 2/1. However, the contact duration was rather insignificantly affected. Having similar metal volume fraction (MVF), energy dissipated by means of plastic deformation of metal layers was found to be constant for both TFML configurations that were considered. The axisymmetric loading, boundary conditions and having balanced material property distribution along the principle axes resulted in doubly symmetric damage surfaces, both layer-wise and overall. The developed finite element (FE) model adequately simulated the contact behavior and all of the experimentally realized damage modes in the metal and composite layers and confirmed its reliability. Having limited experimental information, the obtained numerical information allows one to briefly understand the dynamic perforation behavior of TFML laminates.

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Section: Initial and Boundary Conditionsmentioning

confidence: 91%

A Numerical Study on High Velocity Impact Behavior of Titanium Based Fiber Metal Laminates

Chai

Manikandan

2018

J. Compos. Sci.

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“…1c to give the fullfield deformation. The set-up is similar to that described in detail by Kaboglu et al [28]. The distance between the two high-speed cameras was 410 mm and the distance from the centre of the target to the camera was 925 mm.…”

Section: Methodsmentioning

confidence: 99%

Effects of the core density on the quasi-static flexural and ballistic performance of fibre-composite skin/foam-core sandwich structures

Kaboglu

Mohagheghian

et al. 2018

J Mater Sci

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Polymeric foams are extensively used as the core materials in sandwich structures and the core material is typically bonded between relatively thin fibrecomposite skins. Such sandwich structures are widely used in the aerospace, marine and wind-energy industries. In the present work, various sandwich structures have been manufactured using glass-fibre-reinforced polymer (GFRP) skins with three layers of poly(vinyl chloride) foam to form the core, with the densities of the foam layers ranging from 60 to 100 kg/m 3. This study has investigated the effects on the quasi-static flexural and high-velocity impact properties of the sandwich structures of: (a) the density of the polymeric-foam core used and (b) grading the density of the foam core through its thickness. The digital image correlation technique has been employed to quantitatively measure the values of the deformation, strain and onset of damage. Under quasistatic three-point and four-point bend flexural loading, the use of a low-density layer in a graded-density configuration reduced the likelihood of failure of the sandwich structure by a sudden force drop, when compared with the core configuration using a uniform (i.e. homogenous) density layer. The high-velocity impact tests were performed on the sandwich structures using a gas-gun facility with a compliant, high-density polyethylene projectile. From these impact experiments, the graded-density foam core with the relatively lowdensity layer located immediately behind the front (i.e. impacted) GFRP skin was found to absorb more impact energy and possess an increased penetration resistance than a homogeneous core structure.

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“…A transparent safety chamber, mainly made of thick polycarbonate panels, was used to confine the end of the barrel as well as the target area. A second series of lower energy impact tests were conducted according to the set-up reported by Kaboglu et al [31]. The ARAMIS 3D Digital Image Correlation system was used to obtain the fullfield deformation map and major in-plane strains of GFRP composite plates with various matrices for velocities below the ballistic limit [32].…”

Section: Ballistic Test Set-upmentioning

confidence: 99%

Ballistic impact behaviour of glass fibre reinforced polymer composite with 1D/2D nanomodified epoxy matrices

Domun

Kaboglu

Paton

et al. 2019

Composites Part B: Engineering

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In this paper, experimental studies on the ballistic impact behaviour of nanomodified glass fibrereinforced polymer (GFRP) are reported. The epoxy matrix of the GFRP was modified by the addition of graphene platelets (GNPs), carbon nanotubes (CNTs), combined hybrid hexagonal boron nitride nanosheets (BNNS)/CNT, and combined boron nitride nanotubes (BNNTs)/GNPs nanoparticles. Ballistic impact tests were carried out on GFRP laminates at two projectile velocities of 761 m s −1 for full-field deformation measurements and 134.31.7 m s −1 for perforation tests. The behaviour of the plates during impact was recorded using digital image correlation (DIC), in order to monitor strain and out-of-plane deformation in panels with nanoreinforced matrices. Following penetrative impact tests, pulse thermography was used to characterise the delamination of impacted plates. The results of full-field deformation, exit velocity and energy absorption measurements from the ballistic tests show significant improvements in impact resistance for the panels made from nanomodified epoxies relative to laminates with the unmodified epoxy matrix. The highest absolute absorbed energy was observed for the GFRP panels fabricated using the epoxy matrix loaded with BNNT/GNP at 255.7 J, 16.8% higher than the unmodified epoxy matrix.

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High-velocity impact deformation and perforation of fibre metal laminates

Cited by 48 publications

References 34 publications

A Numerical Study on High Velocity Impact Behavior of Titanium Based Fiber Metal Laminates

A Numerical Study on High Velocity Impact Behavior of Titanium Based Fiber Metal Laminates

Effects of the core density on the quasi-static flexural and ballistic performance of fibre-composite skin/foam-core sandwich structures

Ballistic impact behaviour of glass fibre reinforced polymer composite with 1D/2D nanomodified epoxy matrices

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