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| Modeling and analyzing of rubber layers for laminated rubber bearings：cracking mechanism and experiment |
| Received:March 18, 2012 Revised:July 27, 2012 |
| View Full Text View/Add Comment Download reader |
| DOI：10.7511/jslx201304012 |
| KeyWord:Laminated rubber bearing tension property cracking energy failure mechanism |
| Author | Institution |
| 陈适才 |
北京工业大学 工程抗震与结构诊治北京市重点实验室,北京 ;北京工业大学 城市与工程安全减灾教育部重点实验室,北京 |
| 闫维明 |
北京工业大学 工程抗震与结构诊治北京市重点实验室,北京 ;北京工业大学 城市与工程安全减灾教育部重点实验室,北京 |
| 张志谦 |
北京工业大学 工程抗震与结构诊治北京市重点实验室,北京 |
| 陈彦江 |
北京工业大学 工程抗震与结构诊治北京市重点实验室,北京 ;北京工业大学 城市与工程安全减灾教育部重点实验室,北京 |
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| Abstract: |
| In order to investigate the tension performance and failure mechanism of laminated rubber bearings under tensile loading,The developed tension model and the stress and deform expressions developed for the tensile rubber layer are used to analyze the tension performance,the influence of the shape factor on the stress distributions and deform rules is discussed especially for the deformed shapers of the free edges of the rubber layer.Based on the theory results of the model,the theory of cracking energy is applied to analyze the distributions of cracking energy density and gradient direction.The crack initiation,crack propagation direction and failure mechanism of the rubber layers are investigated.Finally,the test on the laminated rubber bearings under tensile loading is carried out and the results show that the crack energy method is feasible and reasonable for analyzing failure mechanism of the tensile rubber layer. |
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