The impact properties and damage tolerance and of bi-directionally reinforced fiber metal laminates

Wu, Guocai; Yang, Jenn‐Ming; Hahn, H. Thomas

doi:10.1007/s10853-006-0014-y

Cited by 91 publications

(78 citation statements)

References 13 publications

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“…* E-mail: F.D. Moriniere@tudelft.nl Several studies have evaluated the impact performance of FMLs upon minimum cracking energy and perforation energy at low-velocity impact [3][4][5]. However, damage size cannot be characterised only by the level of absorbed energy [6][7][8].…”

Section: Introductionmentioning

confidence: 99%

Damage evolution in GLARE fibre-metal laminate under repeated low-velocity impact tests

et al. 2012

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An experimental study was performed on the repeated low-velocity impact behaviour of GLARE. Damage evolution in the material constituents was characterised with successive number of impacts. Records were correlated with visual inspection, ultrasound C-scan and chemical etching. The stiffness of the plate varied when cumulating the number of impacts. Damage accumulation was limited thanks to the synthesis of unidirectional composite and metal. The glass/epoxy plies with high elastic tensile strength could withstand several impacts before perforation despite delamination growth in the vicinity of the impacted area. The damage tolerant aluminium layers prevented the penetration of the projectile and avoided the expansion of delamination. This efficient mechanism preserved the structural integrity of GLARE until first aluminium cracking at the non-impacted side. Among the different failure modes, plate deformation absorbed most of the impact energy. The findings will support the development of a generic quasi-static analytical model and numerical methods.

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Section: Introductionmentioning

confidence: 99%

Damage evolution in GLARE fibre-metal laminate under repeated low-velocity impact tests

et al. 2012

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“…Low density, higher longitudinal to transverse young's modulus, less ductile and stronger than glass fibres; aramid-epoxy prepeg constituent FML (ARALL) experienced severe damage than GLARE during impact. A comparison to low velocity impact response between GLARE 3,4,5 (2/1) was reported by Laliberte [40] and between GLARE 4,5 (2/1) by Wu [41]. As it was expectable, GLARE 5 with more glass epoxy prepeg layers shows good damage resistance.…”

Section: Effect Of Stacking Sequencementioning

confidence: 61%

“…[57] 2007 -Perforation energy of Glare fibre/aluminum based FML was calculated at different impact energies. [41,58] 2007/ 2008 -Characterizing the Glare specimens based on the damage stages ranges from plastic dent, BVID, CVID to complete perforation at different impact energies. Residual strength of these different characteristic candidates was experimental through post impact fatigue test.…”

Section: Simulation Of Low Velocity Impact On Fmlsmentioning

confidence: 99%

Low velocity impact response of fibre-metal laminates – A review

Chai

Manikandan

2014

Composite Structures

274

126

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“…The cross-sectional images after impact have indicated that debond damage forms under the impact point at the interface of the back wall metal and remaining laminate [6][7][8][9][10][11]. This particular debonding damage has been shown to form during the impactor withdrawal phase of the impact event [12,13].…”

mentioning

confidence: 99%

“…The most evident separation is typically found in the surroundings of the impact point rather than under the impact point [6,7,14]. Depending on the fibre alignments in the laminate and on the location of the debonded interface, the shapes of the debond damage are something between oval, rectangular and circular [6,9,15].…”

mentioning

confidence: 99%

The Effects of Debonding on the Low-Velocity Impact Response of Steel-CFRP Fibre Metal Laminates

et al. 2016

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The effect of metal-composite debonding on low-velocity impact response, i.e. on contact force-central deflection response, deformation profiles and strains on the free surfaces was studied. We focused on type 2/1 fibre metal laminate specimens made of stainless steel and carbon fibre epoxy layers, and tested them with drop-weight impact and quasi-static indentation loadings. Local strains were measured with strain gauges and full-field strains with a 3-D digital image correlation method. In addition, finite element simulations were performed and the effects of debonding were studied by exploiting cohesive elements. Our results showed that debonding, either the initial debonding or that formed during the loading, lowers the slope of the contact force-central deflection curve during the force increase. The debonding formation during the rebound phase was shown to amplify the rebound of the impact side, i.e. to lower the ultimate post-impact deflection. The free surface strains were studied on the laminate's lower surface at the area outside the debond damage. In terms of in-plane strains, debonding formation during impact and indentation, as well as the initial debonding, lowered the peripheral strain and resulted in a positive change in the radial strain.

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The impact properties and damage tolerance and of bi-directionally reinforced fiber metal laminates

Cited by 91 publications

References 13 publications

Damage evolution in GLARE fibre-metal laminate under repeated low-velocity impact tests

Damage evolution in GLARE fibre-metal laminate under repeated low-velocity impact tests

Low velocity impact response of fibre-metal laminates – A review

The Effects of Debonding on the Low-Velocity Impact Response of Steel-CFRP Fibre Metal Laminates

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