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Publications
Sutherland, L.S. and Guedes Soares, C. (2005), “Impact on Single-Skin Marine Composites”, Maritime Transportation and Exploitation of Ocean and Coastal Resources, 2005, Guedes Soares, C., Garbatov, Y. and Fonseca, N. (Eds.), Taylor & Francis Group, London, U.K., Vol. 1, pp. 535-542
Studies into the impact on single-skin marine laminates carried out at IST have been outlined. Impact damage was seen to occur even at extremely low incident energies. Damage modes were multiple, complex and interacting. The impact response was dependant in a complex manner on a large number of material and impact event variables. Indentation followed Hertzian contact law at low forces, but then contact delamination lead to a linear stiffness relationship. Ongoing work includes studies into scaling, inertial interaction between plate and impacter masses, and quasi-static tests as a cheaper alternative to impact testing.
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