Z. Xu et al., LINKED INTERPOLATION FOR REISSNER-MINDLIN PLATE ELEMENTS .3. AN ALTERNATIVE QUADRILATERAL, International journal for numerical methods in engineering, 37(9), 1994, pp. 1437-1443
An alternative quadrilateral element for Reissner-Mindlin plates, whic
h extends the mixed formulation described in Part I using linked inter
polations, is presented. Differently from element Q4BL presented in Pa
rt I, this element (Q4BLa) employs four internal rotation nodes and a
linear approximation for transverse shear forces. It is shown that the
element passes various patch tests, it does not possess any zero-ener
gy mode and its performance is good for both thick and thin plates.