Suggestion About the Torsional Stiffness Matrix of a Thin-walled Beam Element
This paper points out possible problems in calculation of the torsional stiffness matrix of a thin - walled beam element expressed by the hyperbolic function. A nother two expressions of the torsional stiffness matrix, taking into account the effect of the secondary shear stress, have been introduced. After numerical comparison, the author suggests that B. Z. Chen's expression, applicable to thin - walled beam elements with cross- section of any shape, should be extended.
【CateGory Index】： TU323