Experimental evaluation of geometric factors affecting damage mechanisms in carbon/epoxy plates

Zhou, Gang; Lloyd, J.C.; McGuirk, James J.

doi:10.1016/s1359-835x(00)00119-6

Cited by 29 publications

(22 citation statements)

References 12 publications

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“…Full Article of projectile nose shape during the ballistic impact of fibre reinforced plastic plates [5][6][7][8][9][10][11][12][13][14][15][16][17].…”

Section: Studies Have Addressed the Effect And Optimizationmentioning

confidence: 99%

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Influence of Projectile Nose Shape on Ballistic Limit and Damage to Glass/Vinyl Ester Composite Plates

Sasikumar

Sundareswaran

2011

Advanced Composites Letters

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In the recent past, the substantial structural strength, light weight and stiffness properties of polymer based composite materials find its application in aircraft and automotive structures at prodigious rate. Fibre glass Reinforced Plastic (FRP) composites are partially elastic and brittle. The present study evaluates the ballistic limit, energy absorbed and the damage area caused by different projectile nose shapes on the composite plates made of glass fibre and vinyl ester resin with the orientation of (0/90)s. The number of plies in the plates is varied to 4, 6 and 8 and thus lead to different thicknesses. The projectile nose geometry is varied (hemispherical, conical, truncated conical, ogival and truncated ogival) to have realistic effect on the impact. The influence of projectile nose shape over ballistic limit is found experimentally and compared with the analytical predictions by H. M. Wen [5,6]. The ballistic limit, perforation mechanism, energy absorption at ballistic limit and the damage area at ballistic limit velocity has been studied. The influence of thickness of the composite plate over the ballistic limit have also been discussed. It is found that the truncated conical nose shaped projectile resulted in highest ballistic limit and largest damage area dominated by delamination. Experimental results showed that the analytical method [5,6] could satisfactorily predict the ballistic limit.

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“…Full Article of projectile nose shape during the ballistic impact of fibre reinforced plastic plates [5][6][7][8][9][10][11][12][13][14][15][16][17].…”

Section: Studies Have Addressed the Effect And Optimizationmentioning

confidence: 99%

“…Zhou et al [14] found that the change in indenter nose shape resulted in change in failure mode. It was found for most hemispherical indenters, the matrix crack was followed by the fracture of fibre.…”

Section: Studies Have Addressed the Effect And Optimizationmentioning

confidence: 99%

Influence of Projectile Nose Shape on Ballistic Limit and Damage to Glass/Vinyl Ester Composite Plates

Sasikumar

Sundareswaran

2011

Advanced Composites Letters

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“…In the follow ing years many other works appeared with different approaches [24 29]; those works focused its attention in obtaining good corre lations with the delaminated area measured in experimental tests. In addition of these articles, is worth to mention two more works [30,31] which studied experimentally different geometry parame ters, impactor and laminate size, impactor shape and laminate boundary conditions to analyse its influence in the laminate behaviour.…”

Section: Introductionmentioning

confidence: 99%

Experimental study of the impactor mass effect on the low velocity impact of carbon/epoxy woven laminates

Artero-Guerrero

Pernas-Sánchez

López-Puente

et al. 2015

Composite Structures

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In this work, the analysis of the impactor mass effect on the behaviour of carbon/epoxy woven laminates under low velocity impact is carried out. To this end experimental test were performed by means of a drop weigh tower in a range of energies varying from 10 to 110 J, and using three different impactor masses. Two different laminate thicknesses were considered in order to take into account its possible influence. An analysis of the impact tests is performed using the Composite Structure Impact Performance Assessment Program, in order to observe the influence of impactor mass. Once impacted, the laminates were inspected by means of a C Scan (to quantify the delamination extension) and a phased array ultrasonic system (to analyse the failure through the thickness); this non destructive anal ysis will determine the influence of the impactor mass on the laminate failure.

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“…Kim and Goo [13] modelled the e ect of altering the ratio between impactor nose lengths to impactor radius and found that as the ratio decreased (became more blunt), the peak load increased and the impact duration decreased. Zhou et al [14,15] applied a quasi-static load to carbon/epoxy laminates with a nominal thickness through hemispherical and at impactors of two sizes and found that the change in pro le of the impactor nose resulted in a change in failure mode. Mines et al [16] found that hemispherical impactor produced larger delamination areas compared to a conical impactor in laminates of varying thickness.…”

Section: Introductionmentioning

confidence: 99%

Flat nose low velocity drop-weight impact response of carbon fibre composites using non-destructive damage detection techniques

Farooq

Myler

2015

Open Engineering

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This work is mainly concerned with the nondestructive post-impact damage evaluation of carbonbre reinforced laminated composite panels subject to low velocity drop-weight impact by at and round nose impactors. Quasi-isotropic laminates consisting of eight-, sixteen-, and twenty-four plies were impacted by at and round nose impactors at di erent velocity levels. Load-time history data were recorded and plotted to correlate loaddrop as damage level to the impactor nose pro les. Test produced data, non-destructive damage detection techniques: visual, ultrasonic, and eddy-current, and computer simulations were utilised to identify and quantify status of the impact induced damage. To evaluate damage in relatively thick laminates (consisting of 24-Ply), the damage ratios and de ection quantities were correlated to the corresponding impactor nose pro les. Damage induced by the at nose impactor to thick laminates was compared against the data produced by the round nose impactor. Results show that relatively thin laminates were largely a ected by the impactor nose. Reasonable di erence was observed in damage caused by at and round impactor nose pro les to thick laminates impacted at relatively higher velocity impacts. Results were compared and validated against simulation produced data.

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Experimental evaluation of geometric factors affecting damage mechanisms in carbon/epoxy plates

Cited by 29 publications

References 12 publications

Influence of Projectile Nose Shape on Ballistic Limit and Damage to Glass/Vinyl Ester Composite Plates

Influence of Projectile Nose Shape on Ballistic Limit and Damage to Glass/Vinyl Ester Composite Plates

Experimental study of the impactor mass effect on the low velocity impact of carbon/epoxy woven laminates

Flat nose low velocity drop-weight impact response of carbon fibre composites using non-destructive damage detection techniques

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