FINITE ELEMENT ANALYSIS OF ELASTOMERIC BEARINGS

This thesis was presented in partial fulfilment for the Master of Engineering Science, Department of Civil Engineering, Monash University. Laminated elastomeric bearings are widely used in bridge and building structures. The behaviour of these bearings is currently predicted by empirical relationships based upon experimental tests and approximate analytical analyses. Rubber is a nearly incompressible material. In addition it is highly elastic and hence large deformations may occur under the application of loads. Finite deformation strain theory needs to be used to determine the non-linear load displacement relationships. Existing analytical solutions for describing the behaviour of a single elastomer layer have been reviewed. These solutions assume an incompressible linear elastic material and are based upon infinitesimal deformation strain theory. Strain energy density expressions and variational principles applicable to the analysis of rubber have been reviewed. Conventional finite element formulations cannot be used to analyse incompressible and nearly incompressible materials. The Lagrange multiplier technique has been used in this project to enforce incompressibility. A finite element program was developed to analyse incompressible linear elastic materials assuming infinitesimal deformation strain theory as well as incompressible neo-Hookean materials assuming finite deformation strain theory. These two formulations have been included for comparison purposes.

  • Corporate Authors:

    Monash University

    Department of Civil Engineering
    Clayton, Victoria  Australia  3800
  • Authors:
    • Boully, G K
  • Publication Date: 1978-9

Media Info

  • Features: Figures; Photos; References; Tables;
  • Pagination: n.p.

Subject/Index Terms

Filing Info

  • Accession Number: 00303762
  • Record Type: Publication
  • Source Agency: ARRB Group Ltd.
  • Report/Paper Numbers: Thesis
  • Files: ITRD, TRIS
  • Created Date: Apr 22 1980 12:00AM