粘结橡胶环的载荷-压缩关系

粘结橡胶环在很多工程领域被广泛应用于缓冲冲击。这些应用一般都要求掌握橡胶垫准确的载荷压缩关系。但以往的研究仅讨论了橡胶柱体而忽略了橡胶环，而且仅少数研究是基于连续介质力学理论的。文章推导了刚性板间不可压缩橡胶环在三种边界条件下的载荷—压缩关系，考虑了Mooney-Rivlin材料，并基于连续介质力学理论进行了推导。文中将推导公式的计算结果与有限元计算结果进行了比较，证明了这些公式有足够的精度，适用于各种形状系数和材料参数，在有限应变下仍然适用。最后，文中还给出了典型橡胶环的载荷—压缩曲线，并对不同边界条件下的压缩刚度特性进行了讨论。

Load-Compression Relationships of Bonded Rubber Ring

Bonded rubber rings are widely used in many engineering domains to buffer the impact. In general, accurate load-deformation relationships are required in these applications. However, previ-ous researches merely discussed the cylindrical rubber pad rather than the rubber ring. Besides, few of them are based on continuum mechanics theory. In this paper, the load-compression relationships of the bonded incompressible rubber ring are derived for three boundary conditions. The Mooney-Rivlin material is considered and the derivation is based on continuum mechanics theory. The results calculated by the derived formulae are compared with the FEM solutions and proved to have ade-quate accuracy for various shape factors and materials, even in the finite strain. The typical load-com-pression curves of the rubber rings are also presented and the characteristic of the compression stiff-ness in different boundaries are discussed.