Kompozit malzemeden imal edilmiş bir takviye elemanının eğilme ve burulma yükü altında deneysel ve sayısal olarak incelenmesi


Thesis Type: Postgraduate

Institution Of The Thesis: Istanbul Technical University, Fen Bilimleri Enstitüsü, Turkey

Approval Date: 2008

Thesis Language: Turkish

Student: AYGÜL IŞIK

Supervisor: Halit Süleyman Türkmen

Abstract:

The first part of this study talks about the general properties of composite materials and their application areas. Then, it explains manufacturing methods of composite materials, compares these methods, and discusses which method is more efficient for a specific application.

The steps, the advantages and the disadvantages of the main composite fabrication methods including hand-lay-up process, spray-up, filament winding, compression molding, resin transfer molding, injection molding process, autoclave process, pultruzyon, pulforming, sheet molding compound and bulk molding compound are explained. The properties of the fibers that were used, resin types, molds, and equipment are discussed along with the produced samples.

In the experimental section, a support element that has been fabricated using the autoclave/vacuum bagging method, was tested for stress-strain behavior under different load amounts by fixing one end of the sample. The experiments included bending and torsion tests.

Finally, the data were modeled in ANSYS by defining the boundary conditions and the applied loads. The strain and the torsion behavior were analyzed using the modeled data. The experiments were repeated after modifying the model and the results were compared.