The principle of stationary mutual potential energy, which was introduced by Shield and Prager, can be considered as an extension of the principle of minimum potential energy from one-loading system to two-loadlng sys...The principle of stationary mutual potential energy, which was introduced by Shield and Prager, can be considered as an extension of the principle of minimum potential energy from one-loading system to two-loadlng system. By this stationary principle, we can obtain the necessary and sufficient condition of optimality for structural design.展开更多
文摘The principle of stationary mutual potential energy, which was introduced by Shield and Prager, can be considered as an extension of the principle of minimum potential energy from one-loading system to two-loadlng system. By this stationary principle, we can obtain the necessary and sufficient condition of optimality for structural design.