论文部分内容阅读
通过单轴拉伸与平面拉伸试验,得到了柔性接头弹性件橡胶材料“三阶五项式”超弹本构模型参数,通过有限元计算证明了该模型的优越性。为了获得柔性接头弹性件材料剪切模量随容压的变化规律,设计了双轴加载试验装置和表征柔性接头弹性件的三重片试件,进行了压缩剪切联合加载试验及有限元数值模拟。试验结果发现,橡胶材料的剪切模量并没有随压力的升高而减小,该现象与计算结果吻合较好。
Through the uniaxial tensile test and plane tensile test, the parameters of the rubber material of the flexible joint elastic member “third-order pentagon ” superlastic model were obtained. The superiority of this model was proved by the finite element analysis. In order to obtain the change rule of the shear modulus of the flexible connector with the change of the pressure, the biaxial loading test device and the triple-sheet specimen that characterize the flexible connector were designed. The compression-shear combined loading test and finite element numerical simulation . The experimental results show that the shear modulus of the rubber material does not decrease with the increase of pressure, which agrees well with the calculated results.