Sandwich composite materials are widely used within the marine industry, particularly as hull panels. Water impact loads, known as slamming, can be very significant for these structures, particularly for high-speed craft. The transient nature of slamming loads means that the loads are applied very quickly, which can cause stress and strain rates that are high enough to affect the resulting strength of the core material, particularly for polymeric foams. The aim of this paper is to characterise the shear strength of cores at slamming relevant loading rates. Two testing approaches are used: a custom servo-hydraulic beam testing system and a drop-weight impact testing machine. Core materials studied included aramid honeycomb, cross-linked and linear polyvinyl chloride, polyethylene terephthalate and styrene acrylonitrile foams, representing a range of different levels of ductility and maximum elongation. For the moderate and high elongation core materials, there were significant increases in shear strength for dynamic loads; however, the strength of most of the materials does not appear to be sensitive to the exact loading rate.


    Zugriff

    Zugriff über TIB

    Verfügbarkeit in meiner Bibliothek prüfen

    Bestellung bei Subito €


    Exportieren, teilen und zitieren



    Titel :

    Shear strength of sandwich core materials subjected to loading rates relevant to water slamming


    Beteiligte:

    Erschienen in:

    Erscheinungsdatum :

    2014


    Format / Umfang :

    8 Seiten




    Medientyp :

    Aufsatz (Zeitschrift)


    Format :

    Print


    Sprache :

    Englisch




    Strength of Composite Foam Core Sandwich Structures Subjected to Thermomechanical Loading

    Foerster, Chad E. / Goyal, Vinay K. / Rome, Jacob et al. | AIAA | 2013


    Strength of Composite Foam Core Sandwich Structures Subjected to Thermomechanical Loading

    Foerster, C.E. / Goyal, V.K. / Rome, J. et al. | British Library Conference Proceedings | 2013


    Analysis of ship structures subjected to slamming loads

    Borg, S.F. | Engineering Index Backfile | 1960


    Slamming

    Faltinsen, O. / Technical University of Wroclaw | British Library Conference Proceedings | 1997


    Slamming Strength Requirements for Ship Bow Structures

    Boltsov, G.V. | Online Contents | 2001