How does ANSYS calculate the shear correction factor for BEAM188/9 elements?
Formulas for shear correction factor are found in the following references: ` Schramm, U., Kitis, L., Kang, W., and Pilkey, W.D., "On the Shear Deformation Coefficient in Beam Theory", Finite Elem in Analysis and Design, Vol. 16, 1994 ` Walter Pilkey, Formulas for Stress, Strain and structural matrices, John Wiley, 1994 ANSYS determines the shear flow, and then equates the energy calculated in terms of forcessection strains to shearstresses and shear strains. BEAM188/BEAM189 do not use higher order theories to account for variation in distribution of shear stresses. Use ANSYS solid elements if such effects must be considered. If users want a different calculation, they can use SECCONTROLS to overwrite program calculated values. 

