Finite-Element Analysis of Laminated Rubber Bearing Used in Base-Isolation System
Keyword(s):
Abstract A realistic mechanical model was proposed for the laminated rubber bearing, one of the most important structural members in the base-isolation system. The model was analyzed by means of the finite-element method (FEM), up to the range of large deformation under high compressive load. The physical characteristics of the rubber material was modeled using a strain-energy-density function based on the biaxial elongation tests. The load-deformation relationship calculated by FEM using such strain-energy-density function agreed well with experimental results. Based on the simulated stress and strain distributions in the laminated rubber bearing, a mechanism of supporting the vertical load during horizontal deformation was proposed.
1987 ◽
Vol 60
(5)
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pp. 856-869
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Keyword(s):
1987 ◽
Vol 20
(1)
◽
pp. 7-17
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2019 ◽
Vol 18
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pp. 183-188
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