THE HYBRID NATURAL ELEMENT METHOD FOR ELASTICITY

Because for the inaccurate stress solution and poor ability to solve the stress of node, the traditional natural element method (NEM) are rarely used to solve the complex questions. In this paper, the hybrid finite element method was introduced into NEM to be the hybrid natural element method (HNEM). On the basis of HNEM and Hellinger-Reissner principle, the HNEM for elasticity is present. Compare with NEM, the HNEM has more precision solution of stress and can solve the stress of node directly.