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ST71.57.40.1 Calculation of von Mises Stress in Circular Beam Elements
This Webnote demonstrates the calculation of von Mises stress in beam elements with circular crosssection. Currently Strand7 results for general beam elements do not include von Mises stress due to approximation to torsional shear stress. For a noncircular crosssection, torsional shear stress is approximated using parametric equations. For circular crosssections, torsional shear stress is an exact solution and hence von Mises stress can be calculated accurately.

