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Hydroelastic behaviour of slam loaded composite hull panels
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2008 (English)In: High Perform. Yacht Des. Conf., HPYD, 2008, 37-46 p.Conference paper (Refereed)
Abstract [en]

The effects of stiffness on hydroelastic responses of composite marine hull panels subjected to water slamming loads have been experimentally characterised. Panels included a very flexible single skin laminate, a medium stiffness sandwich panel and a very stiff sandwich panel. Panels were tested at a deadrise angle of 10° for a range of water impact velocities from 0.5 to 7m/s in a Servo-hydraulic Slam Testing System. Results demonstrate that the panel stiffness has a significant effect on the responses of slam loaded composite panels. Flexible panels had reductions in the local velocity at the centre of the panel relative to the water, reducing peak pressures at the panel centre. Pressures increased near to the chine edge of the panel, possibly due to reductions in the local deadrise angle due to panel deformation. Such effects were particularly noticeable when the loading rate was of similar order to the first natural frequency of the panel. The implications of the effects of panel stiffness on effective pressure and panel structural response on composite structural design are discussed.

Place, publisher, year, edition, pages
2008. 37-46 p.
, 3rd High Performance Yacht Design Conference 2008, HPYD 2008
Keyword [en]
Composite hull, Composite panels, Effective pressure, Flexible panels, Hydroelastic response, Slamming loads, Structural response, Testing systems, Honeycomb structures, Hydroelasticity, Sandwich structures, Stiffness, Structural design, Yachts, Loading
National Category
Materials Engineering
URN: urn:nbn:se:kth:diva-153315ScopusID: 2-s2.0-84876446571ISBN: 9781622769124OAI: diva2:755836
3rd High Performance Yacht Design Conference 2008, HPYD 2008, 2-4 December 2008, Auckland, New Zealand

QC 20141015

Available from: 2014-10-15 Created: 2014-10-03 Last updated: 2014-10-15Bibliographically approved

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