A simple four-noded corotational shell element for arbitrarily large rotations

Abstract A simple four-noded geometrically nonlinear shell element, which handles arbitrarily large displacements and rotations, is presented in this paper. Based on the assumption of small incremental strain in each load step, a corotational procedure is employed to extract the pure deformational displacements and rotations and update element stresses and internal force vectors through a piece-wise linearized strain-displacement relation. To derive the tangent stiffness matrix, a three-dimensional degenerate, isoparametric shell model is employed. The ‘locking’ problem is alleviated by using mixed interpolation of tensorial transverse shear strain components. The approach described in this paper is ideally suited for implementation in existing linear finite element programs. A number of numerical examples are also presented.

[1]  E. Ramm,et al.  Shell theory versus degeneration—a comparison in large rotation finite element analysis , 1992 .

[2]  J. Argyris An excursion into large rotations , 1982 .

[3]  R. Leicester Finite Deformations of Shallow Shells , 1968 .

[4]  E. Hinton,et al.  A family of quadrilateral Mindlin plate elements with substitute shear strain fields , 1986 .

[5]  K. Bathe,et al.  A continuum mechanics based four‐node shell element for general non‐linear analysis , 1984 .

[6]  H. Saunders,et al.  Finite element procedures in engineering analysis , 1982 .

[7]  Peter Wriggers,et al.  A general procedure for the direct computation of turning and bifurcation points , 1990 .

[8]  C. Rankin,et al.  An element independent corotational procedure for the treatment of large rotations , 1986 .

[9]  Thomas J. R. Hughes,et al.  An improved treatment of transverse shear in the mindlin-type four-node quadrilateral element , 1983 .

[10]  Hsiao Kuo-Mo,et al.  Nonlinear analysis of general shell structures by flat triangular shell element , 1987 .

[11]  Carlo Sansour,et al.  An exact finite rotation shell theory, its mixed variational formulation and its finite element implementation , 1992 .

[12]  Ted Belytschko,et al.  Advances in one-point quadrature shell elements , 1992 .

[13]  J. Z. Zhu,et al.  The finite element method , 1977 .

[14]  M. Crisfield A FAST INCREMENTAL/ITERATIVE SOLUTION PROCEDURE THAT HANDLES "SNAP-THROUGH" , 1981 .

[15]  M. Crisfield A four-noded thin-plate bending element using shear constraints—a modified version of lyons' element , 1983 .

[16]  Eduardo N. Dvorkin,et al.  A formulation of general shell elements—the use of mixed interpolation of tensorial components† , 1986 .

[17]  John Argyris,et al.  Nonlinear finite element analysis of elastic systems under nonconservative loading—natural formulation part II. Dynamic problems , 1981 .

[18]  Gouri Dhatt,et al.  Incremental displacement algorithms for nonlinear problems , 1979 .

[19]  P. G. Bergan,et al.  Nonlinear analysis of free-form shells by flat finite elements , 1978 .

[20]  X. Peng,et al.  A consistent co‐rotational formulation for shells using the constant stress/constant moment triangle , 1992 .