ANALYSIS OF ELASTIC-PLASTIC BUCKLING OF PLATES WITH STIFFENERS BY FINITE ELEMENT METHOD

Elastic-plastic buckling problems have been solved most effectively for engineering purposes by Rayleigh's and Galerkin's method, the variational method. In recent years, however, the development of high speed digital computers has made a numerical approach, termed "the finite element method", more attractive in solving practical problems. B. J. Kapur and K. K. Hartz dealt with elastic buckling of plates by the finite element method, employing rectangular finite elements and a nonconforming shape function. In this paper, using a conforming shape function and triangular finite elements, the finite element method has been expanded for solving problems of elastic-plastic buckling of plates. For plasticity either the incremental theory or the total strain theory of plasticity is used. The authors furthermore developed the finite element method to buckling of stiffened plates. Particular attention is paid to stiffeners furnished on one side of plate, as seen in most ship structures. In this case, the neutral plane of the stiffened plate moves away from the middle plane of the plate and additional stresses on the plate are induced at the instant of buckling. By the method, the effect of one side stiffening can be taken into account as well as torsional and axial rigidities of the stiffeners. Based on these theoretical developments a computer program was completed and several examples demonstrate the usefulness of the development.

• Corporate Authors:

  Society of Naval Architects of Japan

  23 Shiba-kotohiracho, Minato-ku
  Tokyo 135,   Japan 
• Authors:
  • Terazawa, K
  • Yagi, J
  • Ueda, Y
  • Nishimaki, K
  • Matsuishi, M
• Publication Date: 1972

Media Info

• Pagination: p. 41-60
• Serial:
  • Selected Papers, J of Soc of Naval Arch of Japan
  • Volume: 10
  • Publisher: Society of Naval Architects of Japan

Subject/Index Terms

• TRT Terms: Buckling; Finite element method; Plastic deformation
• Uncontrolled Terms: Elastic stress
• Subject Areas: Marine Transportation; Materials;

Filing Info

• Accession Number: 00035170
• Record Type: Publication
• Source Agency: Society of Naval Architects of Japan
• Files: TRIS
• Created Date: Oct 27 1972 12:00AM