This paper describes the extent of investigations carried out between 1971 and 1975, and the main results. The purpose was to get a phenomenologically correct picture of the structural behaviour of open ships under torsion and to examine applicability and limitations of calculation methods commonly used. A theory for the structural behaviour of engine-rooms near midships was investigated and further developed. Studies were carried out with a plastic model test and finite element analyses. Comparisons were made with full-scale measurements reported by J. Lundgren and H. Stahlstierna, ref. (13). For detailed information compare the original reports, ref. (1-2).

  • Supplemental Notes:
    • References: 1) Ulfvarson, A; (Analysis of the stress and deformation condition in a model of an open hull beam with a large torsion box amidships, (in Swedish).) 2) Ulfvarson, A (Phenomenological studies and practical calculations of open ships under torsion, (in Swedish).) 13) Lundgren, J; Stahlstierna, H; (Ships with large hatch openings. Full scale static torsional test on MS Antonia Johnson. The Swedish Ship Research Foundation, 1973.)
  • Corporate Authors:

    KTH Royal Institute of Technology, Sweden

    Stockholm,   Sweden  SE-100 44
  • Authors:
    • Ulfvarson, A
  • Publication Date: 1975-7

Media Info

  • Features: References;
  • Pagination: 32 p.

Subject/Index Terms

Filing Info

  • Accession Number: 00167724
  • Record Type: Publication
  • Source Agency: KTH Royal Institute of Technology, Sweden
  • Report/Paper Numbers: Report No. E-46
  • Files: TRIS
  • Created Date: Jan 13 1978 12:00AM