Reliability analysis for o-ring seals with shear failure

Firstly the finite element model of the O-ring seals is built by commercial software ABAQUS.Applying the theory of nonlinear finite element analysis,the shear strength of the elastomeric O-ring seals is analyzed.The factors influencing Shear strength are considered,such as gap,initial compressibility,notch radius,friction coefficient and fluent pressure.Finally the reliability index of the O-ring seal is computed basing on shear failure model of the elastometric material.