Abstract

The phenomenology of the tensile test is re-examined with special attention to the influence of strain rate sensitivity of the flow stress. Explicit formulae are deduced for the measured variables of the test in terms of the phenomenological parameters of the material. The stability of the deformation is examined, and the growth of an inhomogeneity is described in the unstable deformation regime. The effect of elasticity of the specimen and the testing machine is investigated with special attention to relaxation tests.

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