Original Article
- The Influence of Transverse Shear Stress on Damping of 0-degree Unidirectional Laminated Composites
- Jong Hee Yim ,B. Z. Jang, J. C. Suhling, J. W. Gillespie Jr
- 0-degree 단일 방향 적층된 복합재료의 댐핑에 대한 횡전단 응력의 영향
- 임종휘(광주-전남 중소기업청, 시험검사과), B. Z. Jang(미 Auburn Universty 재료공학과), J. C. Suhling(미 Auburn Universty 재료공학과), J. W. Gillespie Jr.(미 Auburn University 기계공학과)
Abstract
A model for predicting damping in composites has been developed based on the concept of strain energy-weighted dissipation. In this model, the effect of transverse shear stress on damping has been included in addition to the effects of inplane extension/compression and inplane shear. Validation of the model was attempted by conducting damping measurements on 00 unidirectional composite beams with varying length and thickness. The results of theoretical predictions of damping in laminated composites were found to compare favorably with experimental data. The transverse shear appears to have a significant effect on the damping mechanisms in 0° unidirectional polymer composites.
A model for predicting damping in composites has been developed based on the concept of strain energy-weighted dissipation. In this model, the effect of transverse shear stress on damping has been included in addition to the effects of inplane extension/compression and inplane shear. Validation of the model was attempted by conducting damping measurements on 00 unidirectional composite beams with varying length and thickness. The results of theoretical predictions of damping in laminated composites were found to compare favorably with experimental data. The transverse shear appears to have a significant effect on the damping mechanisms in 0° unidirectional polymer composites.
A model for predicting damping in composites has been developed based on the concept of strain energy-weighted dissipation. In this model, the effect of transverse shear stress on damping has been included in addition to the effects of inplane extension/compression and inplane shear. Validation of the model was attempted by conducting damping measurements on 00 unidirectional composite beams with varying length and thickness. The results of theoretical predictions of damping in laminated composites were found to compare favorably with experimental data. The transverse shear appears to have a significant effect on the damping mechanisms in 0° unidirectional polymer composites.
Keywords:
This Article
Copyright ⓒ The Korean Society for Composite Materials. All rights reserved.Gangnam Mirae Tower, Suite 601, 174 Saimdang-ro, Seocho-gu, Seoul 06627, South Korea
Tel: +82-2-598-1550 Fax: +82-2-598-1557 E-mail: composites@kscm.re.kr