On the Completeness for a 3-D Linear Theory of Composite Laminate

In ref [1], a model of 3-D composite laminate theory was described. In the present paper,based on the basic equations about 3-D linear elasticity and classical rariational principles,by the block matrix operation and the Lagrange's method of multipliers, a series of basic equations and variational principles are obtained which are more complere and more systematic than that in ref [1].