optimum design of sandwich constructions

the concepts of structural optimization was introduced about sixty years ago. smiths from the university of los angeles (california) for the first time has offered the combination of finite element method and optimization techniques to design optimum structures (1960). at present time, this techniques are generally understood and many softwares for this perpose have been developed. in this paper. optimum design of sandwich constructions is considered by the combination of finite element method and nonlinear optimization programming. the nonlinear problem is solved by sequential linear programming. in this basis ,a software is designed which can be executed on a pc/xt/at/ and it can solve complicated problems suitably. solved examples shows stability and convergence of the method as well as reliability of the developed software.