Qh. Qin, HYBRID-TREFFTZ FINITE-ELEMENT METHOD FOR REISSNER PLATES ON AN ELASTIC-FOUNDATION, Computer methods in applied mechanics and engineering, 122(3-4), 1995, pp. 379-392
A modified variational principle for analysis of Reissner plates on an
elastic foundation is presented. The foundation may be of Winkler typ
e or Pasternak type. A hybrid Trefftz (HT) finite element (FE) model h
as been developed based on the principle and a new set of T-complete f
unctions. Several numerical examples are considered to assess the effe
ctiveness of the proposed method.