Fatigue life analysis of rubber vibration damper based on continuum damage model

被引：0
|
作者：
机构：
[1] School of Mechanical Engineering, Hunan University of Technology
[2] Zhuzhou Time New Material Technology Co., Ltd.
来源：
Ding, Z. (dzp0733@sohu.com) | 1600年 / Chinese Mechanical Engineering Society卷 / 50期
关键词：
Damage model; Fatigue life; Rubber; Strain energy; Vibration damper;
D O I：
10.3901/JME.2014.10.080
中图分类号：
学科分类号：
摘要：
Based on the continuum damage mechanics theory, rubber-like material fatigue life prediction method is researched. Using the first order Ogden strain energy function, a fatigue damage evolution equation of rubber material is derived and a fatigue life prediction model for rubber with equivalent strain range as damage parameter is built. Fitting tensile stress-strain data of unnotched specimen, Ogden hyperelastic constitutive model parameters of rubber materials are obtained. The principal stress distribution of an arm rubber bushing under fatigue loading is calculated by finite element structural analysis. Using equivalent stress method of rubber hyperelastic materials and the tensile stress-strain data of unnotched specimen, the equivalent strain range calculation method of rubber vibration damper under multiaxial stress state is put forward and the equivalent strain range of the arm rubber bushing is calculated. The model is used to predict the fatigue life of rubber bushing and verified by fatigue bench test result. The result shows that the predicted fatigue life is the fatigue test life of 1.96 times. So, the prediction accuracy is good. © 2014 Journal of Mechanical Engineering.
引用
收藏
页码：80 / 86
页数：6
相关论文
共 16 条
  • [1] Wang J., Peng L., Hou H., Et al., The structure and character of bushing used for railways, Journal of World Rubber Industry, 8, pp. 23-26, (2006)
  • [2] Ding Z., Chen J., Song C., Et al., Analysis of fatigue crack growth life for rubber vibration damper, Journal of Mechanical Engineering, 46, 22, pp. 58-64, (2010)
  • [3] Gdoutos E.E., Daniel I.M., Schubel P., Fracture mechanics of rubber, Automatic Control and Robotics, 3, 13, pp. 497-510, (2003)
  • [4] Mars W.V., Fatemi A., Fatigue crack nucleation and growth in filled natural rubber, Fatigue Fract. Engng. Mater. Struct., 26, pp. 779-789, (2003)
  • [5] Li X., Yang X., Rubber pure shear specimen deformation and fracture finite element analysis, Chinese Journal of Mechanical Engineering, 43, 6, pp. 232-238, (2007)
  • [6] Wang B., Lu H., Kim G.H., A damage model for the fatigue life of elastomeric materials, Mechanics of Materials, 34, pp. 475-483, (2002)
  • [7] Ayoub G., Nait-Abdelaziz M., Zairi F., Et al., Multiaxial fatigue life prediction of rubber-like materials using the continuum damage mechanics approach, Procedia Engineering, 2, pp. 985-993, (2010)
  • [8] Wang W., Shangguan W., Duan X., Et al., Study on prediction of fatigue life of rubber mount based on linear cumulative fatigue damage theory, Journal of Mechanical Engineering, 48, 10, pp. 56-65, (2012)
  • [9] Tomita Y., Lu W., Computational characterization of micro-to macroscopic mechanical behavior and damage of polymers containing second-phase particles, International Journal of Damage Mechanics, 11, 2, pp. 129-149, (2002)
  • [10] Peng L., Lin D., Wang J., Et al., Deflection performances of rubber bushing for rolling stock, Journal of Rolling Stock, 49, 9, pp. 9-11, (2011)
12