- 유한요소법에 의한 등방성과 이방성 재료의 저속 충격 해석
- Low-Velocity Impact Analyses of Isotropic and Anisotropic Materials by the Finite Element Method
- ㆍ 저자명
- 안국찬,박형렬
- ㆍ 간행물명
- 한국산업안전학회지
- ㆍ 권/호정보
- 2001년|16권 1호|pp.9-17 (9 pages)
- ㆍ 발행정보
- 한국안전학회
- ㆍ 파일정보
- 정기간행물| PDF텍스트
- ㆍ 주제분야
- 기타
The purpose of this research is to analyze the impact resposes(impulsive stress and strain etc.) of anisotropic materials subjected to the low-velocity impact. For this purpose, a beam finite element program based on modified higher-order beam theory for anisotropic materials are developed and used to simulate the dynamic behaviors [contact force, displacement of ball and target, strain(stress) response histories] according to the changes of material property, stacking sequence, velocity and dimension etc.. Test materials for simulation are composed of $[0^{circ}/45^{circ}/0^{circ}/-45^{circ}/0^{circ}]_{2s} and [90^{circ}/45^{circ}/90^{circ}/-45^{circ}/90^{circ}]_{2s}$ stacking sequences. Finally, the results of this simulation are compared with those of wave propagation theory and then the impact responses and wave propagation phenomena are investigated.