Earticle

초록

영어

The demand for materials with porosity is steadily increasing and the need for porous materials is increasing in fields such as chemical engineering and energy storage. In order to minimize trial and error, verifying design validity through finite element method at the design stage has the advantage to verify design validity with low cost. However there are limitations in finite element analysis using porous materials. In this study calculating the equivalent mechanical properties reflecting the porosity was carried out, and the first step was the isotropic elasticity in plane stress condition. The equivalent elastic modulus and the equivalent Poisson's ratio were derived through simulation. Assuming that the voids exist in a two-dimensional symmetrical shape and a constant distribution, the unit cell was defined and the equivalent mechanical properties were calculated. The specimen with same condition were measured through a universal test machine (UTM), the elastic modulus and Poisson's ratio were measured. The similarity between the value obtained through the simulation and the value measured through the experiment was under 5%, so the validity of this simulation was verified. With this result, FEM with porous materials will be used for design.

목차

ABSTRACT
1. 서론
2. 기존 연구 및 배경 이론
2.1 복합재의 등가 물성 도출 연구
2.2 대표 체적요소 방법(RVE Method)
2.3 평면 응력 및 등방성 재질
3. 시뮬레이션을 이용한 등가 물성 도출
3.1 해석 및 계산 방법
3.2 등가 물성 도출 프로세스
3.3 단위 셀 모델의 선정 및 형상
3.4 시뮬레이션 결과
4. 실험을 통한 검증 및 결과
4.1 실험 장비 및 방법
4.2 실험 시편
4.3 측정결과
4.4 비교 및 검증
5. 분석 및 논의
6. 결론
후기
References

키워드

저자

• 표창민 [ Chang-Min Pyo | Korea Institute of Industrial Technology, Researcher ] Corresponding Author

참고문헌

발행기관

간행물

표지보기 관심저널 등록

• 간행물명

  한국기계항공기술학회지(구 한국기계기술학회지) [Journal of the Korean Society of Mechanical and Aviation Technology ]

• 간기

  격월간

• pISSN

  1229-604X

• eISSN

  2508-3805

• 수록기간

  1999~2026

• 등재여부

  KCI 등재

• 십진분류

  KDC 550 DDC 620