Mechanical Behavior of Hybrid Composites
Noha Ramadan Abdel Hamid;
Abstract
Natural Fibers (NF) are widely used as reinforcement in polymer based composites. Their main advantages lie in their availability from renewable resources at low prices, in addition to the relatively low density and high specific properties in contrast to synthetic fibers. Natural fiber composites have been found to exhibit suitable mechanical properties for nonstructural applications. However, when it comes to high strength (structural) applications, the specific properties of natural fibers are typically not sufficient. One potential method for solving some of the drawbacks related to natural fibers is to hybridize them with synthetic reinforcements with the goal of improving overall composite mechanical properties.
In this respect, this research aims to investigate the potential improvement in mechanical and erosion characteristics of jute fiber reinforced epoxy composites through the hybridization with SiC particles using the VARI technique.
In order to achieve this aim, physical and mechanical properties of jute fabric were characterized. As a preparation for the reinforcement of epoxy matrix, fibers were treated with sodium hydroxide. A number of conditions were examined to find the optimum alkali treatment conditions that result in best mechanical behavior of the jute-epoxy composites. In a second stage, this optimum fiber treatment was further adopted for the preparation of the hybrid jute-SiC epoxy composites. Different volume fractions of 2, 4, 6 and 8 % SiC were incorporated into the composite to investigate the effect on mechanical and physical properties. Further, the erosion wear of the prepared hybrid composites was investigated.
The homogeneity of SiC particle distribution was also investigated. It is anticipated that the homogeneous distribution of the particles within the textile reinforcement is a function of woven fabric mesh and particle size as well as the infiltration length in the VARI process. This is validated through the alteration of fabric type and particle size, and was examined through a number of characterization methods.
In this respect, this research aims to investigate the potential improvement in mechanical and erosion characteristics of jute fiber reinforced epoxy composites through the hybridization with SiC particles using the VARI technique.
In order to achieve this aim, physical and mechanical properties of jute fabric were characterized. As a preparation for the reinforcement of epoxy matrix, fibers were treated with sodium hydroxide. A number of conditions were examined to find the optimum alkali treatment conditions that result in best mechanical behavior of the jute-epoxy composites. In a second stage, this optimum fiber treatment was further adopted for the preparation of the hybrid jute-SiC epoxy composites. Different volume fractions of 2, 4, 6 and 8 % SiC were incorporated into the composite to investigate the effect on mechanical and physical properties. Further, the erosion wear of the prepared hybrid composites was investigated.
The homogeneity of SiC particle distribution was also investigated. It is anticipated that the homogeneous distribution of the particles within the textile reinforcement is a function of woven fabric mesh and particle size as well as the infiltration length in the VARI process. This is validated through the alteration of fabric type and particle size, and was examined through a number of characterization methods.
Other data
| Title | Mechanical Behavior of Hybrid Composites | Other Titles | السلوك الميكانيكي للمؤلفات المهجنه | Authors | Noha Ramadan Abdel Hamid | Issue Date | 2015 |
Attached Files
| File | Size | Format | |
|---|---|---|---|
| G11865.pdf | 499.92 kB | Adobe PDF | View/Open |
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