STABILITY OF VISCOELASTIC STRUCTURAL MEMBERS

A METHOD OF ANALYSING THE BUCKLING BEHAVIOUR OF A VISCO- ELASTIC STRUCTURAL MEMBER IS PRESENTED. THE METHOD USES THE VISCO-ELASTIC CORRESPONDENCE PRINCIPLE TO CONVERT THE VISCO- ELASTIC BUCKLING PROBLEM TO AN EQUIVALENT ELASTIC PROBLEM, THE SOLUTION OF WHICH MAY BE WELL KNOWN OR MAY BE READILY OBTAINED BY STANDARD TECHNIQUES. A NUMBER OF SPECIFIC PROBLEMS ARE SOLVED FOR THE PARTICULAR CASE OF A MATERIAL WHOSE VISCO-ELASTIC BEHAVIOUR MAY BE REPRESENTED BY A THREE- PARAMETER MODEL WHICH HAS BOTH AN INITIAL AND A FINAL ELASTIC RESPONSE. THE PROBLEMS TREATED ARE A SIMPLY SUPPORTED COLUMN WITH SINUSOIDAL INITIAL DISPLACEMENT, AN ECCENTRICALLY LOADED COLUMN, A COLUMN BUILT-IN AT ONE END AND SIMPLY SUPPORTED AT THE OTHER, AN I-BEAM WITH A CENTRAL CONCENTRATED LOAD APPLIED AT OR ABOVE THE SHEAR CENTRE. IT IS SHOWN THAT THE BEHAVIOUR OF THESE DIFFERENT PROBLEMS IS QUITE SIMILAR, AND THAT THEIR CREEP BUCKLING BEHAVIOUR IS GOVERNED BY THE RELATIVE MAGNITUDES OF THE APPLIED LOAD AND THE IMMEDIATE AND LONG TERM ELASTIC BUCKLING LOADS. /AUTHOR/

  • Availability:
  • Corporate Authors:

    Institution of Engineers

    Science House, Gloucester and Essex Streets
    Sydney,   Australia 
  • Authors:
    • BOOKER, J R
    • Frankham, B S
    • Trahair, N S
  • Publication Date: 1974

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Filing Info

  • Accession Number: 00083851
  • Record Type: Publication
  • Source Agency: Transport and Road Research Laboratory (TRRL)
  • Files: ITRD, TRIS
  • Created Date: May 1 1975 12:00AM