Wave slamming was simulated by repeatedly slamming rectangular sandwich composite specimens mounted on a rigid wedge with constant deadrise angle onto the body of calm water at various energy levels. Under single slamming, peak pressures and strains on the specimens were consistently found near the keel, whereas the maximum damage was localized near the chine. Significant reduction in strength was observed resulting from a single slam even at a moderate slamming energy level that left no apparent/visible damage to the test panel. Similarly, a substantial reduction in strength was observed under repeated slamming at various energy levels. The results were corroborated with acoustic emission observations that indicated a substantial reduction in AE activity in slammed specimens. A methodology was developed for the quantitative assessment of remaining strength and damage accumulation in slammed specimens using AE technique. Face yielding and core crushing were found to be the dominant modes of failure.
Rosén, A. and Garme, K. (2004). Model Experiment Addressing the Impact Pressure Distribution on Planning Craft in Waves, International Journal of Small Craft Technology, 50(3): 11-20.
2.
Garme, K. and Rosén, A. ( 2003). Time-domain Simulation and Full Scale Trials on Planning Craft in Waves, International Shipbuilding Progress, 50(3): 177-208.
3.
Rosén, A. (2005). Impact Pressure Distribution Reconstruction from Discreet Point Measurements, International Shipbuilding Progress, 52(1): 91-107.
4.
Rosen, A. ( 2004). Loads and Responses for Planning Craft in Waves, KTH Division of Naval Systems, ISBN 91-7283-936-8.
5.
Engle, A. and Lewis, R. ( 2003). A Comparison of Hydrodynamic Impacts Prediction Methods with Two Dimensional Drop Test Data, Marine Structures, 16: 175-182.
6.
Downs, R., Edinger, S. and Battley, M. ( 2006). Slam Testing of Sandwich Panels, SAMPE Journal, 42(4): 47-55.
7.
Hayman, B., Haug, T. and Valsgard, S. ( 1992). Slamming Drop Tests on a GRP Sandwich Beams Subjected to Slamming Loads, EMAS, Sandwich Constructions2, 583-604.
8.
Faltinsen, O. ( 2005). Hydrodynamics of High-speed Marine Vehicles, Cambridge University Press, New York.
9.
Wagner, H. ( 1932). Uber Stoss und Gleitvergange an der Oberflache von Flossigkeiten , Zeitscrift fur Angewandte Mathematic unt Mechanic, 12: 192-253.
10.
Karman, V. ( 1929). The Impact on the Seaplane Floats During Landing, Technical Notes, TN321: 1-8.
11.
Breder, J. ( 2005). Experimental Testing of Slamming Pressure on a Rigid Marine Panel, KTH (Sweden) Center for Naval Architecture , Master’s Thesis.
12.
Kvalsvold, J. and Faltinsen, O. (1995). Hydroelastic Modeling of Wet Deck Slamming on Multihull Vessels, Journal of Ship Research, 39: 225-229.
13.
Wraith, R. ( 1998). Pressure Loads On Ship Hull Plating Caused By Slamming, Department of Mechanical and Manufacturing Engineering, Thesis, TheUniversity of Melbourne, Australia.
14.
Thomas, G., Davis, M., Holloway, D., Watson, N. and Roberts, T. ( 2003). Slamming Response of a Large High-speed Wave-piercer Catamaran, Marine Technology, 40(2): 126-140.
15.
Stenius, I. ( 2006). Finite Element Modeling of Hydroelasticity in Hull-water Impacts, KTH (Sweden) Center for Naval Architecture , ISBN: 978-91-7178-548-0.
16.
Battley, M., Stenius, I., Breder, J. and Edinger, S. ( 2005). Dynamic Characterization of Marine Sandwich Structures, Sandwich Structures 7: Advancing with Sandwich Structures and Materials, pp 537-546, Springer, Aalborg, Denmark.
17.
Buene, L., Echtermeyer, A., Sund, O., Nydgard, M. and Hayman, B. ( 1991). Assessment of Long Term Effects of Slamming Loads on FRP Sandwich Panels, International Conference on Fast Sea Transportation, 1: 365-380.
18.
Chuang, S. ( 1967). Experiments on Slamming of Wedge-shaped Bodies, Journal of Ship Research, 11(3): 190-198.
19.
Zhao, R. and Faltinsen, O. ( 1993). Water Entry of Two-dimensional Bodies, Journal of Fluid Mechanics, 246: 593-612.
20.
Campana, E. , Carcaterra, A., Ciappi, E. and Iafrati, A. (2000). Some Insights into Slamming Forces: Compressible and Incompressible Phases, Proceedings of Institution of Mechanical Engineers (IMechE), 214(Part C): 881-888.
21.
Yettou, E., Desrochers, A. and Champoux, Y. ( 2007). A New Analytical Model for Pressure Estimation of Symmetrical Water Impact of a Rigid Wedge at Variable Velocities, Journal of Fluids and Structures, 23(3): 501-522.
22.
Sharma, S., Gibson, R. and Ayorinde, E. ( 2006). Fatigue of Foam and Honeycomb Core Composite Sandwich Structures: A Tutorial, Journal of Sandwich Structures and Materials, 8: 263-319.
23.
Sutherland, L. and Soares, G. (2006). Impact Behavior of Typical Marine Composite Laminates, Composites: Part B, 37(2-3): 89-100.
24.
Yettou, E., Desrochers, A. and Champoux, Y. ( 2006). Experimental Study on the Water Impact of a Symmetrical Wedge, Fluid Dynamics Research, 38(1): 47-66.
25.
Hayman, B., Haug, T. and Valsgard, S. ( 1991). Response of Fast Craft Hull Structures to Slamming Loads , International Conference on Fast Sea Transportation, 1: 381-388.
26.
Buchner, B., Hodgson, T. and Voogt, A. (eds.), ( 2004). Summary Report on Design Guidance and Assessment Methodology for Wave Slam and Green Water Loading, SAFEFLOW, Report # 15874-1-OE, under EU contract # G3RD-CT-2000-00271.
