TY  - EJOU
AU  - Nguyen-Van, H. 
AU  - Duy, N. Mai 
AU  - Tran-Cong, T. 

TI  - A simple and accurate four-node quadrilateral element using stabilized nodal integration for laminated plates
T2  - Computers, Materials \& Continua

PY  - 2007
VL  - 6
IS  - 3
SN  - 1546-2226

AB  - This paper reports the development of a simple but efficient and accurate four-node quadrilateral element for models of laminated, anisotropic plate behaviour within the framework of the first-order shear deformation theory. The approach incorporates the strain smoothing method for mesh-free conforming nodal integration into the conventional finite element techniques. The membrane-bending part of the element stiffness matrix is calculated by the line integral on the boundaries of the smoothing elements while the shear part is performed using an independent interpolation field in the natural co-ordinate system. Numerical results show that the element offered here is locking-free for extremely thin laminates, reliable and accurate, and easy to implement. Its convergence properties are insensitive to mesh distortion, thickness-span ratios, lay-up sequence and degree of anisotropy.
KW  - laminated composite plates
KW  -  strain smoothing method
KW  -  shear-locking free
KW  -  first-order shear deformation theory

DO  - 10.3970/cmc.2007.006.159