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In FEA Hourglass and shear locking are two major issue bcz they may mislead the results drastically. However, very few Example and video tutorial available on such. Therefore I tried to explain those-
major concentration points are -
1. Excessive deformation by hourglass
2. Why hourglass appears?
3. Formulation of hourglass energy in element.
4. How to diagnosed hourglass ?
5. How to address Hourglass ?
6. Cantilever Beam example with Analytical Proof.
7. How to use Full integration element in Radioss and Abaqus to overcome the hourglass.

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Software

Abaqus
LS-Dyna
Ansys

Categories

CAE
FEM

Keywords

Hourglass

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