金属橡胶压缩性能影响因素及细观模型研究

分析了几种主要制备参数及温度对金属橡胶静态压缩特性的影响,利用悬臂曲梁单元建立了金属橡胶的细观力学模型。经过大量试验,结合最小二乘法,对细观模型的参数进行拟合求解,得到了包含制备参数及温度的模型表达式。通过将模型验证结果与实验曲线对比后发现,理论模型有较高的精度,可以比较全面地反映金属橡胶的刚度特性,为金属橡胶的实际应用提供了理论参考。

Study on Influencing Factors of Compression Properties and Mesoscopic Model of Metal Rubber

The effects of several major preparation parameters and temperature on the static compression properties of metal rubber are analyzed, and the mesomechanical model of metal rubber is derived by using cantilever beam element. After a large number of experiments, combining with the least squares method, the parameters of the mesoscopic model are fitted, and the expression of the model including preparation parameters and working temperatures is obtained. Comparing model results with test results, it is found that the accuracy of the theoretical model is high and the model can comprehensively describe the stiffness of metal rubbers. It provides a theoretical reference for the practical application of metal rubbers.