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논문 기본 정보
- 자료유형
- 학위논문
- 저자정보
- 지도교수
- 권오헌
- 발행연도
- 2017
- 저작권
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Particle reinforced composites are materials that have enhanced physical properties by adding particle reinforcements to polymer materials and have been applied to a wide range of fields such as the aerospace, bio-technology and automative industry.
In this study, particle reinforced composites were prepared by mixing SiC/Al2O3 to the vinyl ester as the thermoset resin. The purpose of this study is to evaluate mechanical properties and fracture behavior by tensile test and single edge notch specimen according to the addition ratio of reinforcement. Addition of 1 and 2 wt.% of the particle reinforcement to the vinyl-ester resin was effective for strength improvement. However, when it was more than 3 wt.%, its strength was decreased. Also the highest elastic modulus obtained as 3.19 GPa was found at the 2 wt.% addition of reinforcement. Futhermore the fracture toughness was evaluated by the energy release rate and the maximum critical energy release rate was obtained when 1 wt.% reinforcement. The results show that the limit of adding of SiC/Al2O3 for improvement of the mechanical and fracture performance is 2 wt.% reinforcement particles.
In this study, particle reinforced composites were prepared by mixing SiC/Al2O3 to the vinyl ester as the thermoset resin. The purpose of this study is to evaluate mechanical properties and fracture behavior by tensile test and single edge notch specimen according to the addition ratio of reinforcement. Addition of 1 and 2 wt.% of the particle reinforcement to the vinyl-ester resin was effective for strength improvement. However, when it was more than 3 wt.%, its strength was decreased. Also the highest elastic modulus obtained as 3.19 GPa was found at the 2 wt.% addition of reinforcement. Futhermore the fracture toughness was evaluated by the energy release rate and the maximum critical energy release rate was obtained when 1 wt.% reinforcement. The results show that the limit of adding of SiC/Al2O3 for improvement of the mechanical and fracture performance is 2 wt.% reinforcement particles.
목차
1. 서 론 11.1 연구배경 11.2 연구목적 32. 기본 내용 및 이론 42.1 복합재료 성형방법 42.2 강화재 종류 82.2.1 탄화규소(SiC) 82.2.2 알루미나(Al2O3) 82.3 파괴거동 평가법 103. 시험편 및 실험방법 173.1 실험재료 및 성형법 173.2 시험편 제작 213.2.1 인장시험편 213.2.2 파괴시험편 213.3 인장시험 및 파괴시험 방법 253.3.1 인장시험 253.3.2 파괴시험 254. 결과 및 고찰 274.1 인장시험 274.2 파괴시험 374.3 DIC 평가 414.4 복합재료의 혼합법칙 평가 494.5 미세조직 관찰 555. 결 론 60참 고 문 헌 62
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