Factor of Safety
The Factor of Safety PropertyManager allows you to assess the safety of solid and shell models (sheet metals and surfaces) based on a failure criterion.
Factor of Safety - Step 1 of 3
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Component
. For assemblies and multibody parts, select All, or select a component or body from the menu.
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Criterion
. Failure criteria:
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Composite Options
Failure criteria for composites. (Available for models with composite shells only)
Property
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Include title text. Lets you type a custom title for the plot.
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Associate plot with name view orientation. Associates a predefined view orientation with the active plot.
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Next
. Goes to the next step.
Factor of Safety - Step 2 of 3
If you selected Mohr-Coulomb stress criterion from the previous step, you must set the tensile and compressive stress limits.
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Multiplication factor. Allows you to enter a multiplication factor for calculating the selected stress limit. For example, if you apply a factor of 0.5 to a yield strength stress limit of 2000 psi, Factor of Safety uses 0.5 x 2000 = 1000 psi for the stress limit.
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Beam Results
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Shell Results
. Available for shells only. Select the shell face for which you want to perform the Factor of Safety:
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Top
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Bottom
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Minimum
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Maximum
You should run two checks: one for the top face, and the other for the bottom face.
Composite Options
Available for models with composite shells only.
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Worst-case across all plies. Envelope plot for minimum FOS across all plies (including top and bottom faces of every ply).
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Ply number. Allows you to select the ply number for the factor of safety output. This option is not available when Worst-case across all plies is selected. You can select the top or bottom face for the selected ply number.
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Prev
. Returns to the previous step.
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Next
. Goes to the next step.
Factor of Safety - Step 3 of 3
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Factor of safety distribution. Plots the distribution of the factor of safety.
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Areas below factor of safety. Plots the regions below the specified factor of safety (displayed in red color). Regions above the specified factor of safety are displayed in blue color.
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Safety result. Lists the minimum factor of safety based on the selected criterion.
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Prev
. Returns to the previous step.
Related Topics
To use Factor of Safety