At high stress levels the creep strain rate for many materials varies as the exponential of stress while at low stresses it varies as stress to some power. An analysis is presented for a sharp notch under antiplane shear loading in a material that deforms by hyperbolic-sine-law creep, ε˙c = ε˙0[sinh(σ/σ0)]n. The asymptotic notch-tip stress intensification is weaker and the strain-rate intensification is stronger than for a power-law creeping material.
Issue Section:Research Papers
Topics:Stress, Creep, Shear (Mechanics)
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