Pin/Bolt Safety Check
You can determine if a bolt or a pin in an assembly can safely carry the applied loads, or if it will fail.
The software calculates the combined load ratio a connector withstands and compares it with the user-defined factor of safety.
The pass/no-pass check for connectors is available for linear and nonlinear static studies. For nonlinear studies, the software displays the pass/no pass status of all pin and bolt connectors for each solution step.
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Axial load ratio
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Ra = F/(At*S)
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F = axial load calculated by the software
At = tensile area
S = strength value of connector's material or grade (could be yield, ultimate, proof or shear strength based on application)
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Bending load ratio
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Rb = D*M/(2*S*I)
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M = Bending moment calculated by the software,
D = nominal shank diameter
S = strength value of connector's material or grade (could be yield, ultimate, proof or shear strength based on application)
I =0.25*p*r^4
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Shear load ratio
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Rs = V/(At*S)
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V = Shear load calculated by the software
At = tensile area
S = strength value of connector's material or grade (could be yield, ultimate, proof or shear strength based on application)
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Combined load ratio
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(Ra + Rb)^2 + Rs ^3
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Pass/ No Pass Safety Check
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Connector pass criterion
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1 / ((Ra + Rb)^2 + Rs ^3) > SF
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SF = user-defined factor of safety
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Connector no pass criterion
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1 / ((Ra + Rb)^2 + Rs ^3) < SF
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Related Topics
Pin/Bolt Check
Connector - Bolt
Connector - Pin