Numerical simulation of a ballistic impact on the aeronautical structure in composite material (original) (raw)

Abstract

Composite materials in the form of laminates or sandwich are widely used as ballistic protection thanks to their excellent performance in terms of stiffness, strength and low weight. These structures are prone to various forms of damage in the event of any action outside the plan or as a result of collisions. The present work examines the phenomenon of impact from numerical point of view, using the solver LS-DYNA. The work starts from a literature research that allows to realize three numerical–experimental correlations regarding metals, composites and ceramics materials. This is fundamental to validate the cards used in the software and go to the next simulation phase with the bullet of interest. Since the first material requires excessive thickness and weight to resist to the projectile in question, composite and ceramic materials have to be used; they allow to reduce the weight and have a better impact behaviour. The present work also allows to define a numerical approach for the...

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