橡胶球头, Hertz接触理论, 热弹性效应, 应力分布, 温度分布

A measuring method for contact area stress distributions measurement between rubber indenter and rigid surface was proposed. The temperature of contact area was changed by vibration contact, and temperature distribution was obtained with the aid of infrared temperature-measurement. Based on Hertz contact theory and thermoelastic effect, the relationship among the material properties, contact stress distribution and the temperature change was established, and it was validated by taking the contact area between rotator rubber indenter and rigid flat surface as an example. The results show that the temperature and the stress lines change as the “M” in the contact area. The temperature has a positive correlation with the stress. Meanwhile, it is correlated with the raw material properties, such as the thermal diffusion coefficient, thermal diffusivity and coefficient of thermal conductivity.

 

rubber indenter, Hertz contact theory, thermoelastic effect, stress distribution, temperature distribution