Publication: Modeling high-speed impact on CFRP's with an energy balance equation
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2010
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DYMAT
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Abstract
In this work an analytical model has been developed in order to predict the residual velocity of a spherical or cylindrical 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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Proceeding of: 19th DYMAT Technical Meeting: Dynamic Mechanical Behaviour of Polymers and Composites, Strasbourg, France, 1-3 December 2010
Keywords
CFRP, High speed impact, Energy balance equation
Bibliographic citation
Lopez Puente, J., et al. Modeling high-speed impact on CFRP's with an energy balance equation. DYMAT 2010 proceedings: dynamic mechanical behaviour of polymers and composites: 19th technical meeting, 2010, Strasbourg, France. DYMAT, 2010, 8 p.