ELASTO-PLASTIC ANALYSIS OF ORTHOGONALLY STIFFENED PLATES WITH INITIAL IMPERFECTIONS UNDER UNIAXIAL COMPRESSION

In general, the stiffened plates consisting of steel plate elements are unavoidably accompanied by initial imperfections such as residual stress and initial deflections, which have considerable effects on their ultimate strength. Therefore, it is needed for designing them to develop more rational method taking the ultimate strength influenced by initial imperfections into account rather than the conventional design method being on the basis of the linear elastic buckling theory. From this point of view, this study aims to evaluate rigorously the ultimate strength of orthogonally stiffened plate with initial imperfections under uniaxial in-plane compression. The elasto-plastic finite element method is applied to attain this purpose. By a happy combination of modal analytical technique and conventional finite element method, much reduction of the degree of freedom can be expected to be realized herewith. Some numerical calculations are performed by means of this rigorous method to examine the exactness of the analysis. Moreover, the numerical results are compared with the experimental ones.(a) (TRRL)

• Availability:
  • Find a library where document is available. Order URL: http://worldcat.org/oclc/1793974
• Corporate Authors:

  Pergamon Press, Incorporated

  Maxwell House, Fairview Park
  Elmsford, NY  United States  10523
• Authors:
  • Komatsu, S
  • Nara, S
  • Kitada, T
• Publication Date: 1980-5

Media Info

• Features: Figures; References; Tables;
• Pagination: p. 429-437
• Serial:
  • Computers & Operations Research
  • Volume: 11
  • Issue Number: 5
  • Publisher: Elsevier
  • ISSN: 0305-0548
  • Serial URL: https://www.sciencedirect.com/journal/computers-and-operations-research

Subject/Index Terms

• TRT Terms: Box girders; Bridges; Compression; Deflection; Dislocation (Geology); Elasticity (Mechanics); Elastoplasticity; Finite element method; Mathematical analysis; Mathematical models; Orthogonality; Plasticity; Plates (Engineering); Residual stress; Steel; Steel plates; Stiffeners (Plates); Stiffness; Strength of materials; Ultimate strength
• Uncontrolled Terms: Elastic plastic analysis; Plate; Uniaxial compression
• ITRD Terms: 6471: Analysis (math); 3474: Box girder; 5912: Elasticity; 6473: Mathematical model; 5483: Movement; 5922: Plasticity; 3491: Slab; 4542: Steel; 3435: Stiffener (bridge); 5931: Stiffness; 5544: Strength (mater)
• Subject Areas: Bridges and other structures; Design; Highways; I24: Design of Bridges and Retaining Walls;

Filing Info

• Accession Number: 00324655
• Record Type: Publication
• Source Agency: Transport Research Laboratory
• Files: ITRD, TRIS
• Created Date: Aug 15 1981 12:00AM