High-velocity impact of graphite/epoxy composite laminates

Chen, J.K.; Allahdadi, Firooz A.; Carney, Theodore C.

doi:10.1016/s0266-3538(97)00067-5

Cited by 60 publications

(29 citation statements)

References 17 publications

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“…The improvement in the development of analytical [8,12,11,25] or numerical [26,27] models requires experimental results. Qualitative observation reveals the keys of the structural response of the composite laminate, leading to the hypothesis of the model; quantitative measurements enables the validation of the models developed, to ensure reliable results.…”

Section: Introductionmentioning

confidence: 99%

Experimental and numerical analysis of normal and oblique ballistic impacts on thin carbon/epoxy woven laminates

López-Puente

Zaera

Navarro

2008

Composites Part A: Applied Science and Manufacturing

165

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A finite element numerical model for carbon/epoxy woven laminates has been used to predict residual velocity and damaged area when subjected to high impact velocities. Experiments using a gas gun were conducted to investigate the impact process and to validate the model, measuring the two variables previously indicated. A morphology analysis was also made to investigate the different breakage mechanisms that appear during the penetration process. The influence of the impact velocity and obliquity has been studied using the numerical tool, in a wide range of impact velocities and considering two impact angles, 0°and 45°.

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Section: Introductionmentioning

confidence: 99%

Experimental and numerical analysis of normal and oblique ballistic impacts on thin carbon/epoxy woven laminates

López-Puente

Zaera

Navarro

2008

Composites Part A: Applied Science and Manufacturing

165

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“…Some works on numerical simulation of ballistic impacts in CFRPs appear in [29,30]. Although less expensive than experimental testing, they also en tail a high cost because of the price of the codes and the long computational time.…”

Section: Introductionmentioning

confidence: 99%

Analytical modelling of high velocity impacts of cylindrical projectiles on carbon/epoxy laminates

López-Puente

Varas

Loya

et al. 2009

Composites Part A: Applied Science and Manufacturing

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a b s t r a c tIn this work an analytical model has been developed in order to predict the residual velocity of a cylin drical steel projectile, after impacting into a woven carbon/epoxy thin laminate. The model is based in an energy balance, in which the kinetic projectile energy is absorbed by the laminate through three different mechanisms: linear momentum transfer, fiber failure and laminate crushing. This last mechanism needs the quantification of the through thickness compressive strength, which has been evaluated by means of quasi static punch tests. Finally, high velocity impact tests have been accomplished in a wide range of velocities, to validate the model.

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“…In order to maintain continuity with earlier experimental work, the materials used in these multilayer composites were ceramic, EPDM rubber or teflon foam ( * Polarchip TM ) 1 and S2-Glass/SC15 composite. Further details of the mechanical properties of the materials and the material models used in the finite element models can be found in [25].…”

Section: Modelingmentioning

confidence: 99%

“…Several studies have modeled penetration into composite materials during high velocity impact [1][2][3][4][5][6] while other studies have addressed aspects of damage generation [1,[7][8][9]. Work has also been performed to determine loading rate effects: for example, Wu and Chang noted that peak force and energy absorption increased with loading rate as well as noting that fiber breakage caused an increasing amount of energy absorption as the loading rate increased [10].…”

Section: Introductionmentioning

confidence: 99%

Development of novel multilayer materials for impact applications: A combined numerical and experimental approach

Taşdemirci

Hall

2009

Materials & Design

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a b s t r a c tA well-verified and validated numerical model was used to investigate stress wave propagation in a multilayer material subjected to impact loading. The baseline material consisted of a ceramic faceplate and composite backing plate separated by a rubber or teflon foam interlayer: several variants were investigated in which the number, type, and total thicknesses of the interlayers were altered. Comparison of the variants showed that the use of multiple teflon foam interlayers could drastically reduce the average stress in the multilayer material. Based on the numerical results, further experimental work was undertaken upon one of the variants. Very large and unexpected tensile stress oscillations were observed in the ceramic layers, leading to a refinement of the numerical model which successfully reproduced the oscillations and also demonstrated that separation of the sample layers led to trapping of the stress wave within the layers. Use of the validated numerical model allowed detailed analysis of the processes of wave transmission and demonstrates the important synergy that can exist between experimental and modeling studies. The current study provides a valuable starting point for designing future multilayer materials with specific, controlled properties.

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High-velocity impact of graphite/epoxy composite laminates

Cited by 60 publications

References 17 publications

Experimental and numerical analysis of normal and oblique ballistic impacts on thin carbon/epoxy woven laminates

Experimental and numerical analysis of normal and oblique ballistic impacts on thin carbon/epoxy woven laminates

Analytical modelling of high velocity impacts of cylindrical projectiles on carbon/epoxy laminates

Development of novel multilayer materials for impact applications: A combined numerical and experimental approach

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