Activity: Talk or presentation types › Conference presentation
We propose variational formulations of isotropic plates based on only one unknown. Herein, the in-plane displacements are the same as that of Kirchhoff-Love model while the transverse one can be expressed in term of bending deflection and its Laplace operator. It enables the present model to be free of shear-locking and also reduce two unknowns as compared to traditional ReissnerMindlin model. However, it produces a fourth-order partial differential equation in strong form, resulting in the symmetrical third-order differential weak form. Based on these, we develop Isogeometric Galerkin formulations with B-Spline basic functions of order p ≥ 3 to naturally fulfill the stringent C2-continuity. Convergence study and shear-locking test are presented to show the reliability and effective of the proposed formulations.