Hierarchical assumed strain-vorticity shell element with drilling degrees of freedom

摘要

The formulation of stabilized assumed strain-vorticity degenerated shell element with six degrees-of- freedom per mode is developed. The penalty formulation is employed to alleviate rank deficiency caused by drilling degrees-of freedom. The assumed strain-vorticity formulation for p-type shell elements is utilized to circumvent membrane and shear locking at lower polynomials as well as locking associated with the penalty Science B.V. All rights reserved.