We　applied　the　fracture　mechanics　approach　and　the　nonlinear　finite　element　method　to　the　analysis　of　interfacial　failure　in　cylinder　rubber　bush　bonded　on　their　outer　and　inner　curves　surfaces　to　rigid　metal　cylinders.　The　fracture　parameter,　tearing　energy　for　rubber　bushes　was　calculated　using　global　energy　change.　The　contact　of　interfacial　crack　during　deformation　was　considered.　The　analyses　for　initially　small　cracks　and　relatively　large　cracks　growing　downwards　disagree　with　the　previous　linear　solutions.　The　variation　tearing　energy　for　cracks　growing　upwards　is　consistent　with　the　existed　results　except　a　small　range　of　crack　length　at　the　bottom　end,　where　negative　tearing　energies　exist　which　indicates　a　small　crack　is　unexpected　to　initiate.