Optimum design of composite membranes with curved fiber courses

Ceyhan, Ümit


Optimum design of composite structures with curved fiber courses
Parnas, L; Oral, Süha; Ceyhan, U (2003-05-01)
In this study, a new methodology for the optimum design of laminated composites with curved fiber courses is presented. The objective of the optimization problem is to minimize the weight of the composite laminate under stress constraints. The Tsai-Hill criterion is employed on the first ply failure basis. Layer thicknesses and fiber angles are represented by bicubic Bezier surfaces and cubic Bezier curves, respectively. Design variables are coordinates of control points of the corresponding Bezier splines....
Optimum design of slurry pipelines
Yıldız, Burhan; Altan Sakarya, Ayşe Burcu; Department of Civil Engineering (2009)
There exist various applications of transportation of slurries through pipelines all over the world. In the present study, the problem is formulated as a "transportation problem" to determine the pipe diameters and amounts of slurry to be transported from the demand (production) points to the processing (factory) points. The minimization of the cost consisting of the pipe and energy cost terms is considered as the objective function to determine the stated decision variables. Pipe cost is given as the funct...
Optimum design of water jet pumps with application to solid transportation through pipeline systems
Inci, Guner; Göğüş, Mustafa; Department of Civil Engineering (1987)
Optimum design of low-rise steel frames made of cold-formed thin-walled steel sections
Çarbaş, Serdar; Tokdemir, Turgut; Saka, Mehmet Polat; Department of Engineering Sciences (2013)
Thin-walled section is the one which is made of thin plates. The thickness of thin plates is quite small compared to other cross-sectional dimensions as well as overall length of the member or substructure. Elements made of thin-walled sections are used extensively in steel and concrete bridges, ships, aircraft, mining head frames, and gantry cranes. One common feature of these members made of thin-walled sections is that they are very light compared with alternative sections and, therefore, they are used e...
Optimum design of composite laminates with curved fiber courses under strength and stability constraints
Kasap, İsmail; Oral, Süha; Department of Mechanical Engineering (1996)
Citation Formats
Ü. Ceyhan, “Optimum design of composite membranes with curved fiber courses,” Middle East Technical University, 2001.