Physical Review Letters · 2006 · 185 citations · 20 references
EngineeringGlass-forming LiquidTwo-dimensional Scaling PropertiesMechanical EngineeringGlass MaterialGlass-ceramicSelf-affine PropertiesMechanicsCrack VelocityMaterials ScienceSolid MechanicsMicrostructureApplied PhysicsCrack FormationDynamic Crack PropagationMechanics Of MaterialsFracture MechanicsGrowth ExponentsMultiscale Modeling
The self-affine properties of postmortem fracture surfaces in silica glass and aluminum alloy were investigated through the 2D height-height correlation function. They are observed to exhibit anisotropy. The roughness, dynamic, and growth exponents are determined and shown to be the same for the two materials, irrespective of the crack velocity. These exponents are conjectured to be universal.
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