Fluid structure interaction of submerged metallic and composite plates subjected to low velocity impact loading

Hampson, PR; Moatamedi, M

Abstract

An instrumented low velocity impact rig has been used to acquire experimental data for impacts in air and underwater for both metallic and composite plates when subjected to a low velocity drop-weight impact with a 2kg steel impactor. Initial impact studies were conducted in air and then repeated for submersed conditions underwater. Experimental results are compared for all tests with numerical solutions and are found to be in good agreement.

For underwater impact, the numerical model incorporates the use of a Eulerian formulation for the water with a coupled fluid-structure interaction algorithm. The effect of the water surrounding the target plates was found to reduce the peak accelerations and also reduce the overall impact duration when compared to the same impacts in air. X-Ray imagery of the composite plates also showed visibly reduced damage for the submersed test specimens.

This research provides data on the impact response of metallic and composite materials, and validates numerical methodologies for use in future work on fluid-structure interactions which show strong potential for relevant industrial applications.

Citation

Hampson, P., & Moatamedi, M. (2010). Fluid structure interaction of submerged metallic and composite plates subjected to low velocity impact loading. International Journal of Crashworthiness, 15(1), 49-58. https://doi.org/10.1080/13588260902986036

• Journal Article Type: Article
• Acceptance Date: Apr 20, 2009
• Online Publication Date: Apr 13, 2010
• Publication Date: Apr 13, 2010
• Deposit Date: Oct 2, 2020
• Publicly Available Date: Oct 2, 2020
• Journal: International Journal of Crashworthiness
• Print ISSN: 1358-8265
• Electronic ISSN: 1754-2111
• Publisher: Taylor and Francis
• Volume: 15
• Issue: 1
• Pages: 49-58
• DOI: https://doi.org/10.1080/13588260902986036
• Publisher URL: https://doi.org/10.1080/13588260902986036
• Related Public URLs: http://www.tandfonline.com/toc/tcrs20/current
• Additional Information: Access Information : This is an Accepted Manuscript of an article published by Taylor & Francis in International Journal of Crashworthiness on 13th April 2010, available online: http://www.tandfonline.com/10.1080/13588260902986036.