Saint-Venant's Principe of the Problem of the Cylinder

The problem of the
infinite axisymmetrical circular cylinder loaded by an equilibrium system of
forces on its near end is discussed and its formulation of Special
Saint-Venant's Principle is established. It is essential to develop
mathematical theories of Special Saint-Venant's Principle one by one if
Elasticity has to be constructed to be rational, logical，rigorous and secure mechanics.