한국복합재료학회:학술대회논문집 (Proceedings of the Korean Society For Composite Materials Conference)
- 한국복합재료학회 2005년도 춘계학술발표대회 논문집
- /
- Pages.249-252
- /
- 2005
저속충격을 받는 적층복합재료 평판의 미시구조를 고려한 interlaminar stress 거동 연구
Interlaminar stress behavior of laminated composite plates under Low velocity Impact
- 발행 : 2005.04.29
초록
Prediction of damage caused by low-velocity impact in laminated composite plate is an important problem faced by designers using composites. Not only the inplane stresses but also the interlaminar normal and shear stresses playa role in estimating the damage caused. The work reported here is an effort in getting better predictions of damage in composite plate using DNS approach. In the DNS model, we discretize the composite plates through separate modeling of fiber and matrix for the local microscopic analysis. Through comparison with the homogenized model. In the view of microscopic mechanics with DNS model, interlaminar stress behaviors in the inside of composite materials is investigated and compared with the results of the homogenized model which has been used in the conventional approach of impact analysis.