Electronic Resource
Oxford, UK
:
Blackwell Publishing Ltd
Fatigue & fracture of engineering materials & structures
18 (1995), S. 0
ISSN:
1460-2695
Source:
Blackwell Publishing Journal Backfiles 1879-2005
Topics:
Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics
Notes:
Abstract Crack growth mechanisms have been investigated in 6061 aluminum alloy reinforced with alumina particles (Al2O3/6061 Al composites). This has led to the identification of six crack phases: unstable growth; long crack growth; near-threshold long crack growth; short crack growth; pre-cease short crack growth, and non-growth phases. A crack phase diagram for particulate-reinforced composites is presented here which displays the range of applied stress and crack length for each phase. Each phase boundary corresponds or relates to an overall material property. The inability of particles to resist long crack growth has been rationalized by the variation of crack tip-cyclic plasticity and fracture energy due to the presence of particles.
Type of Medium:
Electronic Resource
URL:
http://dx.doi.org/10.1111/j.1460-2695.1995.tb00856.x
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