THE RESISTANCE OF A REINFORCED CONCRETE CYLINDRICAL SHELL TO PENETRATION BY A KNIFE EDGE LOAD

A study of the potentialities of a reinforced concrete ship for the carriage of LNG would be incomplete without a study of its resistance to collision or grounding damage. A fairly substantial amount of research work has been done on the ultimate strength of simple rinforced concrete beams and a thorough search revealed at least two papers dealing with the mechanism of failure in a semi-cylindrical reinforced concrete shell under a uniform hydrostatic loading. These confirmed that some of the postulates commonly used in the plastic anaysis of steel construction also obtained for reinforced concrete and that it was possible, therefore, to employ the same methodology, although with modification. The sides of the double-tank subject vessel were assumed to be cylindrical and prismatic throughout at least one tank length. (This involves, of course, almost no departure at all from the actual configuration). Midway between the two end bulkheads a knife edge loading was applied at right angles to the axis of the cylinder, as if applied by the bow of a ramming ship. Whether the stem be raked or absolutely plumb does not affect the solution.

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  • Corporate Authors:

    International Periodical Press

    193 Heemraadssingel
    Rotterdam,   Netherlands 
  • Authors:
    • EVANS, J H
  • Publication Date: 1977-3

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Filing Info

  • Accession Number: 00165680
  • Record Type: Publication
  • Source Agency: International Shipbuilding Progress
  • Files: TRIS
  • Created Date: Nov 23 1977 12:00AM