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Torsional Constants for Beams

SolidWorks Simulation computes the torsional constant and shear factor entries for beam sections. The shear center line of all beams is shown, along with the neutral axis.

For torsional shear stress calculation, the program calculates the torsional constant, and distance from the center of the section to the point of maximum torsional shear for all beam cross-sections. For shear stress calculation, the program calculates the two shear factors that account for the nonuniform shear stress distribution across the beam's cross-section.

To view the section properties of a beam, right-click the beam definition and select Edit Definition. The torsional constant, distance for maximum shear stress, and shear factors are listed under Section Properties in the Apply/Edit Beam PropertyManager.
You can override the beam section properties calculated by the program with user-defined values.

To view the shear center line of a beam, right-click Joint group and select Edit. Under Results, select Display shear center. A red line shows the shear center of beams in the graphics area.

torsional_constant_properties.gif Shear Center Beam

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