Expert Like System for Cylindrical Shell Support

  • P. Vokroj
Conference paper
Part of the International Union of Theoretical and Applied Mechanics book series (IUTAM)


The submitted contribution describes expert-like SAUDES program system based on data base of 288 cases of contact problem solutions. The data base consists of extreme values of longitudinal and circumferential stresses at the saddle horn. These values are functions of 3 parameters that are shell geometry, dimensions of loaded area and non-dimensional distance of saddle from stiffening element (plate, rib or drumhead). The solution is based on semibending shell theory for semi-infinite length of cylindrical shell, for line load contact forces. Both ends influence is done as superposition of two single side influence. The basis of task is 3-dimensional linear interpolation of 3-parameters function. The stresses obtained are evaluated by help of ASME stress categorisation. The procedure suggested is compared with six examples of theoretical and experimental solutions, known from technical literature.


Unable to display preview. Download preview PDF.

Unable to display preview. Download preview PDF.


  1. 1.
    R.Beeckman-D.Van Leuwen. Programmes de calcul per ordinateur, CRIF report MT 113, Sept. 1976, Bruxelles.Google Scholar
  2. 2.
    P.V.Forbes-A.S.Tooth. An Analysis for Twin Saddle Supported Unstiffened Cylindrical Vessels, In.Recent Advances in Stress Analysis, Royal Aeronautical Society, March 1968, London.Google Scholar
  3. 3.
    G.Duthie-A.S.Tooth. The Analysis of Horizontal Cylindrical Vessel Supported by Saddles Welded to the Vessel, In. 3-rd Irit. Conf. on Pressure Vessel Technology, Tokyo April 1977.Google Scholar
  4. 4.
    A.A.Lakis-R.Doré. General Method for Analysing Contact Stress on Cylindrical Vessels, Int.J. Solid Structures Vol. 14, pp. 499–516 (1978).Google Scholar
  5. 5.
    V.Kfupka. The Contact Between a Rigid or Flexible Saddle Support and Thin Elastic Shell, Arch. Budowy Maszyn X XIV (1977).Google Scholar
  6. 6.
    P.Vokroj. Local Load on Cylindrical Shell Analysis, Thesis, VÍTKOVICE-Institute of Applied Mechanics, Brno 1987 (in Czech).Google Scholar

Copyright information

© Springer-Verlag Berlin Heidelberg 1992

Authors and Affiliations

  • P. Vokroj
    • 1
  1. 1.VÍTKOVICE — Institute of Applied MechanicsBrno 11Czechoslovakia

Personalised recommendations