The Evaluation of Different Parameters on Fatigue Life of Carbon / Epoxy and Carbon / Phenolic Polymer Composite Rods under Tensile-pressure Loads

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Rastegar, Sajad | 2021

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Type of Document: M.Sc. Thesis
Language: Farsi
Document No: 55139 (45)
University: Sharif University of Technology
Department: Aerospace Engineering
Advisor(s): Hosseini Kordkheili, Ali
Abstract:
The aim of this dissertation is to analyze the tensile-stress fatigue of composite rods made of a combination of carbon-epoxy resin as well as carbon chopped-phenolic resin and to investigate the effect of different parameters on their fatigue life. The curing process is completely different in carbon / epoxy and carbon / phenolic composites, Carbon / Epoxy is a thermo-plastic composite, but carbon / phenolic is a thermo- set composite. Therefore, differences in the curing process, raw materials, changes in the volume percentage of resin and fibers, the effects of different loading during the production and curing process of the composite, cooling and heating rates during production can affect the fatigue life of the rods.To make the samples, a suitable standard template was designed and made for use in academic and research environments. Then the required samples were made and the required tests were performed using a tensile-pressure test machine and a rotary fatigue test machine under different loads and the effect of different parameters on this behavior was investigated
Keywords:
Polymer Composites ; Tensile Test ; Fatigue Test ; Carbon/Phenolic ; Failure Test ; Composite Mold Design

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