ME 2151 Chapter 7
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separation of a piece of material into two or
more pieces when subject to stress
Fracture involves the initiation and propagation (i.e.
growth) of a crack, and may occur in several ways, such as:
! slow application of external loads (e.g. tensile test)
! rapid application of external loads (impact)
! cyclic or repeated loading (fatigue)
! time-dependent deformation (creep)
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