Difference between revisions of "Explicit FEA Cracks"
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(Created page with "FEA calculations can model explicit cracks. == Explicit Cracks == Cracks in FEA calculations are set up by configuring the mesh to include a crack. A crack can be internal t...") |
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== Explicit Cracks == | == Explicit Cracks == | ||
[[File"FEACrack.jpg|right]] | |||
Cracks in FEA calculations are set up by configuring the mesh to include a crack. A crack can be internal to the mesh or, for symmetric loading, can be on an edge of the mesh and defined with the help of boundary conditions. These two crack geometries are illustrated on the right. | Cracks in FEA calculations are set up by configuring the mesh to include a crack. A crack can be internal to the mesh or, for symmetric loading, can be on an edge of the mesh and defined with the help of boundary conditions. These two crack geometries are illustrated on the right. | ||
The crack plane edges must be collinear and of equal length (Δa). When a calculation with cracks is done, the Crack Closure... command can be used to calculate crack tip energy release rate. | The crack plane edges must be collinear and of equal length (Δa). When a calculation with cracks is done, the Crack Closure... command can be used to calculate crack tip energy release rate. | ||
Revision as of 09:52, 12 September 2013
FEA calculations can model explicit cracks.
Explicit Cracks
right Cracks in FEA calculations are set up by configuring the mesh to include a crack. A crack can be internal to the mesh or, for symmetric loading, can be on an edge of the mesh and defined with the help of boundary conditions. These two crack geometries are illustrated on the right.
The crack plane edges must be collinear and of equal length (Δa). When a calculation with cracks is done, the Crack Closure... command can be used to calculate crack tip energy release rate.