Three-Dimensional Nonlinear Modeling of Rubber Bushing Subjected to Complex Loading Available to Purchase

A finite element procedure was used to analyze rubber components on track links of military vehicles for improving their life. The procedure includes consideration of material nonlinearity with the use of a hyper-elastic material model, geometric nonlinearities utilizing surface-to-surface contact interface, large deformation and large strain nonlinear solutions. The procedure was validated with available experimental data. Very good correlation was obtained. The procedure was then applied to analyze a two-lobe rubber bushing using a 3-D model and applying a complex loading sequence including installation of the bushing onto the track links, operative loading of a combined steady-state vertical and torsional load. Results provided detailed insight to the deformation and locations of highly stressed areas at which failure initiation and limiting life might occur.