反复压力作用下橡胶的承载力—变形特性的试验研究

英文篇名：The experimental study on load-deformation behavior of rubbers under cyclic compressive loading
中文刊名：四川建筑科学研究
英文刊名：Sichuan Building Science
作者：张大长 ; 陈怀亮 ; 韩丽婷 ; 韩晓健
英文作者：ZHANG Dachang1 ; CHEN Huailiang2 ; HAN Liting1 ; HAN Xiaojian1(1.College of Civil Engineering ; Nanjing University of Technology ; Nanjing 210009 ; China ; 2.Nantong Vocational Technique College ; Nantong 226007 ; China)
中文关键词：反复压缩荷载 ; 橡胶 ; 荷载—变形特性 ; 刚度
英文关键词：cyclic compressive loading ; rubber ; load-deformation behavior ; stiffness
出版日期：2009-10-25
机构：南京工业大学土木工程学院;南通职业技术学院;
年：2009
期：05
出版单位：四川建筑科学研究

摘要

对3种不同刚度的橡胶试件进行了反复抗压加载试验,考察了在竖向反复压力作用下橡胶的承载力—变形特性。试验结果表明,当竖向荷载较小时,橡胶试件的荷载—变形呈线性变化;随着竖向荷载不断增大,荷载—变形出现非线性特性。当经历多次反复加载—卸载试验后,橡胶的荷载—变形曲线趋于稳定。当荷载卸至零时,橡胶的竖向压缩变形及横向膨胀变形不能完全恢复至零,存在一定的残余变形;而且,刚度越大,残余变形越大。多次反复压缩加载的压力较大时,橡胶试件的非线性刚度比初次加载时略有增大,但是,对整体力学性能影响较小,即橡胶具有较好的反复压缩力学性能。
The tests of rubbers with different stiffness subjected to cyclic compressive loading are carried out,and these load-deformation behaviors are studied.The tests results shown that there is linear load-deformation behaviors for the small compressive load,and the nonlinear behavior is appeared with the increase of the load.When the rubber specimens is cyclic compressed several times,the load-deformation relations for under cyclic compressive loading become more uniform.When specimens are unloaded to zero,the vertical compressive deformation and lateral deformation can not completely resume,and remaining deformation is existed.Besides,the higher stiffness of rubber has larger remaining deformation.However,the remaining deformation has smaller effect on the rubber mechanical behavior,namely,the rubber has better cyclic compressive loading behavior.

引文

[1]詹特.橡胶工程—如何设计橡胶配件[J].北京:化学工业出版社,2003.
    [2]梁威,杨青芳,薛丹,等.减震用橡胶材料及其应用[J].合成橡胶工业,2006,29(4):313-316.
    [3]林生义.橡胶减震器的现状及发展趋势[J].中国橡胶,1999,16(1):4-10.
    [4]李忠献,陈海泉,刘建涛.应用SMA—复合橡胶支座的桥梁隔震[J].地震工程与工程振动,2002,4(22):143-148.
    [5]周福霖.工程结构减震控制[M].北京:地震出版社,1997.
    [6]庄鹏,薛素铎,等.新型—橡胶支座的研制及在网壳结构中的隔震分析[J].北京工业大学学报,2004,30(2):176-179.
    [7]李晓芳.橡胶钢双材料非线性有限元分析及破坏机理研究[D].福州:福州大学,2006.