Abstract
Abstract The “pure shear” test piece consists of a thin, rectangular strip of rubber held by or bonded to rigid grips along its long edges. When the grips are pulled apart, the rubber in the center of the test piece is in a deformed state close to pure shear. This test piece is commonly used for studies of fracture in rubber (rubber tear) because it is amenable to simple fracture mechanics analyses. The “pure shear” test piece may also be used for study of failure at the rubber-to-metal bond. Its geometry and manner of loading make it especially useful for study of long-term durability of bonds in corrosive environments such as in a salt fog chamber. This paper discusses non-linear finite element analysis results for failure at the bond of the “pure shear” test piece. Results are compared with well-known results for analogous cases in rubber tear. Short and long cracks located in the center and at the free edges are considered.
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