Showing papers by "Mehmet Polat Saka published in 1991"
TL;DR: In this article, a structural optimization algorithm is developed for geometrically nonlinear three-dimensional trusses subject to displacement, stress and cross-sectional area constraints, which is obtained by coupling the nonlinear analysis technique with the optimality criteria approach.
75 citations
TL;DR: In this paper, the authors presented an algorithm for the optimum design of street frames that implements the displacement and combined stress limitations according to AISC, and the recursive relationship for design variables in the case of dominant displacement constraints is obtained by the optimality criteria approach.
46 citations
TL;DR: In this article, a structural optimization algorithm for geometrically nonlinear elastic-plastic frames is presented by coupling the optimality criteria approach with a large deformation analysis method.
37 citations
TL;DR: In this paper, an effective optimum design method for fixed geometry has been employed to determine the most suitable shape of a root truss among the commonly used ones, which obtains the final design in few iterations which makes the trial type of procedure feasible.
13 citations
01 Jan 1991
TL;DR: In this article, the elastic analysis of a structure is used to obtain the elastic, nonlinear-elastic and elastic-plastic analysis of number of related structures, which can then be used to predict the forces and displacements throughout a structure.
Abstract: The theorems of structural variation predict the forces and displacements throughout a structure without need of fresh analysis when the physical properties of one or more of its elements are altered. It is possible to show by means of these theorems that the simple elastic analysis of a structure is sufficient to obtain the elastic, nonlinear-elastic and elastic-plastic analysis of number of related structures. In this paper, these theorems are extended to cover the triangular and rectangular finite element structures. The unit loading cases required to study the modification of a single element are given. They are later used to obtain the variation factors. Number of examples are presented to demonstrate the application of the theorems. It is verified that the theorems yield to the exact response of modified structure. In the case where the original structure is subjected to minor and sequential alterations, they are proven to be effective and cheaper to be used. They provide an efficient alternative for the engineering problems which requires reanalysis.
6 citations