期刊
JOURNAL OF SANDWICH STRUCTURES & MATERIALS
卷 24, 期 7, 页码 2047-2064出版社
SAGE PUBLICATIONS LTD
DOI: 10.1177/10996362221122047
关键词
3D woven honeycomb composite; cell structure; compressional energy; three-point bending test; FEM
类别
资金
- Ministry of Textiles, Government of India
This study investigates the flatwise compression behavior of several 3D woven honeycomb composites using numerical simulation and experimental validation. The results show that the hexagonal honeycomb structure performs the best in terms of flatwise compression.
Numerical simulation along with experimental validation are used to investigate the flatwise compression behavior in the out-of-plane direction of several 3D woven honeycomb composites with varied cell geometry such as hexagonal (HX), triangular, and rectangular structures. For all the structures, the perimeter of the unit cell was kept constant. Edgewise compression and three-point bending behavior were compared experimentally for all three configurations. The flatwise compression behavior of honeycomb structures has been predicted using FEM on the LS-DYNA platform, and the results have been validated using experimental data. The predicted values are found to be in good agreement with the experimental results. Hexagonal honeycomb shows better results as compared to other cell structures as revealed by both experimental and numerical analysis.
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