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http://dx.doi.org/10.7234/kscm.2009.22.1.001

Low-Velocity Impact Response and Damage Analysis of Composite Laminates Under Initial In-plane Loading  

Choi, Ik-Hyeon (한국항공우주연구원)
Publication Information
Composites Research / v.22, no.1, 2009 , pp. 1-8 More about this Journal
Abstract
In this paper low-velocity impact response and damage of composite laminates is analytically investigated. A modified displacement field of plate considering initially loaded in-plane strain is proposed. From the displacement field a finite element equation on structural behavior of composite laminate is newly induced and a computational program is coded. Numerical results using the FEM code is compared with the numerical ones from reference. Additional numerical analysis is performed on another impact condition and effect of initial in-plane load is reviewed. Potential delamination damage area in the first inter-ply surface from bottom of laminate is approximated and effect of initial in-plane load and impact condition is also reviewed.
Keywords
in-plane load; low-velocity impact response; low-velocity impact damage; delamination area;
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