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Results - Principal System

This tab displays the geometric properties of a solid section and the properties weighted in relation to the principal coordinate system. The rotation axis between the y axis of the principal coordinate system and the y axis is given in the alpha field.

Note: It is not possible to rotate principal axes because of the section properties calculation assumption that ly is greater than lz.

View the parameters on this tab:

  • Moments of inertia
  • Radiuses of gyration (iyc, izc)
  • Elastic section moduli - Wely, Welz equal the ratio of the moment of inertia to the distance to the outermost section fibers
  • Maximum distances
    • Vy, Ypy - the distance of the outermost section fibers from the z axis
    • Vz, Ypz - the distance of the outermost section fibers from the y axis

If you selected any Additional Calculations on the General tab, the corresponding values display here:

  • Moment of inertia for torsion Ix
  • Shear rigidity factors Ay, Az
  • Shear areas (Wy, Wz)
  • Plastic section moduli (Wply, Wplz)

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