Hu Washizu principle
Encyclopedia
In continuum mechanics
, and in particular in finite element analysis, the Hu-Washizu principle is a variational principle
which says that the action
is stationary, where
is the elastic stiffness tensor. The Hu-Washizu principle is used to develop mixed finite element methods
. The principle is named after Hu Haichang
and K. Washizu.
Continuum mechanics
Continuum mechanics is a branch of mechanics that deals with the analysis of the kinematics and the mechanical behavior of materials modelled as a continuous mass rather than as discrete particles...
, and in particular in finite element analysis, the Hu-Washizu principle is a variational principle
Variational principle
A variational principle is a scientific principle used within the calculus of variations, which develops general methods for finding functions which minimize or maximize the value of quantities that depend upon those functions...
which says that the action
is stationary, where
is the elastic stiffness tensor. The Hu-Washizu principle is used to develop mixed finite element methodsFinite element method
The finite element method is a numerical technique for finding approximate solutions of partial differential equations as well as integral equations...
. The principle is named after Hu Haichang
Hu Haichang
Hu Haichang , , is a notable Chinese mechanical and astronautic engineer. He was in charge of the early phase development for Dong Fang Hong I, which is the first artificial satellite of China...
and K. Washizu.