Publication:
Analysis of high velocity impacts of steel cylinders on thin carbon/epoxy woven laminates

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2013-01
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Elsevier
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Abstract
In this work a numerical model was developed to predict the behavior of thin woven laminates under high velocity impacts. The material model, implemented in a user subroutine to be used with a commercial FE code, takes into account different failure mechanisms. The inter-lamina failure prediction is achieved by means of the use of cohesive elements. Finally, in order to validate the model, experimental tests were accomplished in a wide range of velocities from 100 to 400 m/s. Residual velocity of the projectile and damaged area of the laminates are compared with the numerical results. Once the model is validated, a further investigation has been made in order to analyze the influence of projectile slenderness on the laminate response.
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Carbon fiber, Composite, Ballistic, Numerical model, Cohesive elements
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Composite Structures, v. 95, January 2013, pp. 623-629