Effects of fatigue and aging on the dynamic behavior of elastomeric bearings

Hsoung Wei Chou, Jong-Shin Huang

Research output: Contribution to journalConference article

Abstract

Elastomeric bearings such as rubber bearings frequently used as isolators for bridges deteriorate gradually when they are exposed to radiation or at elevated temperatures. Meanwhile, elastomeric bearings could be damaged by the failure mechanisms of creep and fatigue when they are subjected to external loads. The dynamic resistance of elastomeric bearings is thus reduced due to the changes of their molecular structure caused by environmental or mechanical attacks. As a result, the damping efficiency of isolators made from elastomeric bearings might be dramatically decreased when they are under a cyclic loading of earthquake. This paper mainly aims at investigating the deterioration of dynamic behavior of rubber bearings under variously environmental attacks such as cyclic loads and elevated temperatures. Effects of fatigue and thermal aging on the dynamic behavior of rubber bearings are discussed and presented.

Original languageEnglish
Pages (from-to)440-444
Number of pages5
JournalProceedings of the International Offshore and Polar Engineering Conference
Publication statusPublished - 2004 Dec 1
EventThe Fourteenth International Offshore and Polar Engineering Conference - ISOPE 2004 - Toulon, France
Duration: 2004 May 232004 May 28

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Bearings (structural)
Aging of materials
Fatigue of materials
Rubber
Thermal aging
Cyclic loads
Molecular structure
Deterioration
Earthquakes
Creep
Damping
Radiation
Temperature

All Science Journal Classification (ASJC) codes

  • Energy Engineering and Power Technology
  • Ocean Engineering
  • Mechanical Engineering

Cite this

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abstract = "Elastomeric bearings such as rubber bearings frequently used as isolators for bridges deteriorate gradually when they are exposed to radiation or at elevated temperatures. Meanwhile, elastomeric bearings could be damaged by the failure mechanisms of creep and fatigue when they are subjected to external loads. The dynamic resistance of elastomeric bearings is thus reduced due to the changes of their molecular structure caused by environmental or mechanical attacks. As a result, the damping efficiency of isolators made from elastomeric bearings might be dramatically decreased when they are under a cyclic loading of earthquake. This paper mainly aims at investigating the deterioration of dynamic behavior of rubber bearings under variously environmental attacks such as cyclic loads and elevated temperatures. Effects of fatigue and thermal aging on the dynamic behavior of rubber bearings are discussed and presented.",
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Effects of fatigue and aging on the dynamic behavior of elastomeric bearings. / Chou, Hsoung Wei; Huang, Jong-Shin.

In: Proceedings of the International Offshore and Polar Engineering Conference, 01.12.2004, p. 440-444.

Research output: Contribution to journalConference article

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T1 - Effects of fatigue and aging on the dynamic behavior of elastomeric bearings

AU - Chou, Hsoung Wei

AU - Huang, Jong-Shin

PY - 2004/12/1

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N2 - Elastomeric bearings such as rubber bearings frequently used as isolators for bridges deteriorate gradually when they are exposed to radiation or at elevated temperatures. Meanwhile, elastomeric bearings could be damaged by the failure mechanisms of creep and fatigue when they are subjected to external loads. The dynamic resistance of elastomeric bearings is thus reduced due to the changes of their molecular structure caused by environmental or mechanical attacks. As a result, the damping efficiency of isolators made from elastomeric bearings might be dramatically decreased when they are under a cyclic loading of earthquake. This paper mainly aims at investigating the deterioration of dynamic behavior of rubber bearings under variously environmental attacks such as cyclic loads and elevated temperatures. Effects of fatigue and thermal aging on the dynamic behavior of rubber bearings are discussed and presented.

AB - Elastomeric bearings such as rubber bearings frequently used as isolators for bridges deteriorate gradually when they are exposed to radiation or at elevated temperatures. Meanwhile, elastomeric bearings could be damaged by the failure mechanisms of creep and fatigue when they are subjected to external loads. The dynamic resistance of elastomeric bearings is thus reduced due to the changes of their molecular structure caused by environmental or mechanical attacks. As a result, the damping efficiency of isolators made from elastomeric bearings might be dramatically decreased when they are under a cyclic loading of earthquake. This paper mainly aims at investigating the deterioration of dynamic behavior of rubber bearings under variously environmental attacks such as cyclic loads and elevated temperatures. Effects of fatigue and thermal aging on the dynamic behavior of rubber bearings are discussed and presented.

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