Vierendeel Type Steel Truss/Composite Skin Hybrid Ship Hulls

Abstract

The project dealt with mechanical issues related to hybrid ship hulls made with composite panels attached to a steel truss. The steel truss was designed to carry the bending loads of the hull girder, whereas the composite skins were designed to carry shear and water pressure loads. Experimental and numerical evaluations of the concept were performed. A six meter (20 ft) model, which had been built and initially tested in 2004 under a separate grant, was turned upside-down and tested to verify performance under hogging loads. After these hogging tests, the model was turned back and tested to failure after simulated internal blast by removal of select panels. Material tests and elastic-plastic analyses were performed. Four journal papers describing the work on the present hybrid ship hull concept have been submitted for publication (three have been published and the last one has been accepted).

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Document Details

Document Type
Technical Report
Publication Date
Oct 01, 2007
Accession Number
ADA475927

Entities

People

  • Joachim L. Grenestedt

Organizations

  • Lehigh University

Tags

Communities of Interest

  • Ground and Sea Platforms

DTIC Thesaurus Topics

  • Composite Materials
  • Contracts
  • Department Of Defense
  • Engineering
  • Fatigue Tests (Mechanics)
  • Finite Element Analysis
  • Hydraulic Jacks
  • Information Operations
  • Manufacturing
  • Materials
  • Mechanical Engineering
  • Mechanics
  • Numerical Analysis
  • Oceanography
  • Sandwich Panels
  • Ship Hulls
  • Test And Evaluation

Readers

  • Marine Hydrodynamics
  • Software Engineering
  • Technical Research and Report Writing.