Exact(3)
For small solid toughness and small tip underpressure, the fracture is practically devoid of fluid, which is localized into a narrow region near the fracture inlet.
For large solid toughness, the fluid lag is vanishingly small at any underpressure and the solution is adequately approximated by the zero-lag self-similar large toughness solution at any stage of fracture evolution.
The scaling analysis allows to reduce problem parametric space to two lumped dimensionless parameters with the meaning of the solid toughness and of the tip underpressure (difference between the specified pressure in the tip cavity and the far field confining stress).
Similar(57)
The effect of strong toughness heterogeneities on the macroscopic failure properties of brittle solids is investigated in the context of planar crack propagation.
With his solid defense, toughness, ability to run the offense and knack for hitting big 3-pointers, he usually plays during the fourth quarter instead of the starter Howard Eisley.
B.Y.U. is hanging in there with toughness, solid offense, taking charges, etc., but at some point you have to think that evolution wins out.
This colourless solid has exceptional fracture toughness and chemical resistance, especially in its cubic form.
When using a good lamination adhesive, an LVL balsa core material has enhanced toughness compared to solid balsa and the LVL balsa also has enhanced fiber bridging effects.
Such surprising behavior is in stark contrast to widely reported behavior for the fracture toughness of porous solids, which decreases markedly with porosity.
In this paper, a micromechanics-based constitutive law is used to study the velocity-dependent fracture toughness of porous solids under extensive creep conditions.
Based on the finite element results a semi-empirical formula is also derived to predict the Mode I and Mode II fracture toughness of cellular solids as a function of relative density.
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