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Thursday, March 26, 2015

In the design of elastomeric bearings, why are steel plates inserted inside the bearings?

In the design of elastomeric bearings, why are steel plates inserted inside the bearings?




For elastomeric bearing to function as a soft spring, the bearing should be allowed for bulging laterally and the compression stiffness can be increased by limiting the amount of lateral bulging. To increase the compression stiffness of elastomeric bearings, metal plates are inserted. After the addition of steel plates, the freedom to bulge is restricted and the deflection is reduced when compared with bearings without any steel plates under the same load. Tensile stresses are induced in these steel plates during their action in limiting the bulging of the elastomer. This in turn would limit the thickness of the steel plates.


However, the presence of metal plates does not affect the shear stiffness of the elastomeric bearings.

1 comment:

Search2 said...

Hi,
Your explanations is really good, thanks for sharing.

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