THIN-WALLED BEAM THEORIES AND THEIR APPLICATIONS IN THE TORSIONAL STRENGTH ANALYSIS OF SHIP HULLS

Authors
  1. Vernon, T.A.
  2. Nadeau, Y.
Corporate Authors
Defence Research Establishment Atlantic, Dartmouth NS (CAN)
Abstract
Unified developments of the St-Venant and warping-based thin-walled beam theories and their application in the torsional analysis of ship structures are presented. Open cell, closed cell and multi-cell configurations are treated. The warping-based torsional theory, which accounts for out-of-plane displacements and displacement restraints, provides axial stress distributions resulting from bimoments and in general offers improved predictions of shear stress distribution in thin-walled beams over the St-Venant theory; however, the use of that theory necessitates a more detailed cross-sectional property evaluation. The generalization of the warping function to a displacement field independent of the twist is discussed, as are several iterative methods of including warping shear deformations. TRUNCATED
Report Number
DREA-TM-87-202 — Technical Memorandum
Date of publication
15 Jan 1987
Number of Pages
73
DSTKIM No
87-01291
CANDIS No
50129
Format(s):
Hardcopy;Originator's fiche received by DSIS

Permanent link

Document 1 of 1

Date modified: