Material Science

Material Science - the maximum stress, m, occurs at the...

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the maximum stress , σ m , occurs at the crack tip and may be approximated by where σ 0 is the magnitude of the nominal applied tensile stress, ρ t is the radius of curvature of the crack tip sometimes the ratio σ m 0 is denoted as the stress concentration factor K t : Critical stress for crack propagation in a brittle material E = modulus of elasticity γ s = specific surface energy a = one half the length of an internal crack Fracture toughness—dependence on critical stress for crack propagation and crack length Plane strain fracture toughness for mode I crack surface displacement Computation of design stress Computation of maximum allowable flaw length Mean stress for cyclic loading—
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This note was uploaded on 11/03/2009 for the course PHYS 351 taught by Professor Staff during the Spring '08 term at UNC.

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Material Science - the maximum stress, m, occurs at the...

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