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Verification & Validation
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Verification
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Verification of Maximum Bending Stress and Maximum Total Deformation
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Steps
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<iframe width="560" height="315" src="https://www.youtube.com/embed/3RMqaGN74Cg" frameborder="0" allowfullscreen></iframe> |
Check Equilibrium
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<iframe width="560" height="315" src="https://www.youtube.com/embed/FlM9BMQARSM" frameborder="0" allowfullscreen></iframe> |
Check Mesh Dependence
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<iframe width="560" height="315" src="https://www.youtube.com/embed/GNpoYKqrCTI" frameborder="0" allowfullscreen></iframe> |
Number of Elements | Total Deformation (m) | Maximum Bending Stress Pa |
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2 | 0.0051352 | 4.6352x10^6 |
10 | 0.0051352 | 4.6352x10^6 |
As one can see from the table above the results do not change as the mesh is refined. The reason that the results do not change is that they have already converged to the answer. The exact solution for the deformation is cubic and for this setup ANSYS uses element BEAM 188 which in turn uses cubic interpolation. Thus, for the simple cantilever beam setup the numerical method converges very quickly.
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