FEA02
Transcript of FEA02
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FE Modeling Strategy
Decide on details from design
Find smallest dimension of interest
Pick element types
1D Beams
2D Plate or Shell
3D Tetrahedron or Brick
Estimate numer of elements! nodes "#dofs$
Decide if run time %ill e reasonale
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FE Modeling Strategy&continued'
(nput )eometry
*+D ,le
(nside FE code
)enerate Mesh Pick parameters- elements.length! element
si/e! 0
Select regions to mesh
)enerate and check
+spect ratio
Degenerate elements
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FE Modeling Strategy&continued'
+pply displacement oundaryconditions
check for rigid ody motion
+pply surface loads
+pply ody forces
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FE Solution Strategy
Pick solution strategy
inear or nonlinear
Eigenalue &natural freuencies oruckling'
Transient or static
Parametric! optimi/ation or proailistic
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