NON CONTACT UNDERWATER EXPLOSION EFFECTS ON SHIP HULLS

The implementation of a methodology to predict, at a design stage, the structural dynamic response of the ship structures to a nearby underwater explosion, is discussed. As regards the local analysis of bottom plating response to the shock wave load, a dynamic non-linear three-dimensional calculation is performed both on a stiffened and on an unstiffened plate. As far as the whipping response of the hull subjected to bubble pulsations is concerned, the structural model of the ship is a monodimensional finite element beam which response is analyzed in the linear field. To validate the calculations, numerical results are compared with the data available from the undex trials performed by the Italian Navy on a decommissioned ship.

  • Supplemental Notes:
    • Intl Seminar on Hydroelasticity for Ship Structural Design; 15 Feb 1996; Genova, Italy. Sponsored by CETENA, Italy. Pprs. [13 p, 9 ref, 1 tab, 13 fig]
  • Authors:
    • Cobolli, G
    • Damonte, R
  • Publication Date: 1996

Language

  • English

Subject/Index Terms

Filing Info

  • Accession Number: 00728049
  • Record Type: Publication
  • Source Agency: British Maritime Technology
  • Files: TRIS
  • Created Date: Nov 4 1996 12:00AM