不同蜂窝结构三维编织蜂窝复合材料平面吸能行为的数值模拟

IF 3.5 3区材料科学 Q1 ENGINEERING, MECHANICAL

Journal of Sandwich Structures & Materials Pub Date : 2022-08-20 DOI:10.1177/10996362221122047

Lekhani Tripathi, S. Behera, B. Behera

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引用次数: 6

摘要

数值模拟和实验验证用于研究几种具有不同单元几何形状（如六边形（HX）、三角形和矩形结构）的三维编织蜂窝复合材料在平面外方向上的扁平压缩行为。对于所有结构，晶胞的周长保持不变。对所有三种配置的边向压缩和三点弯曲行为进行了实验比较。在LS-DYNA平台上用有限元法对蜂窝结构的平面压缩行为进行了预测，并用实验数据对结果进行了验证。预测值与实验结果吻合较好。实验和数值分析表明，与其他蜂窝结构相比，六边形蜂窝显示出更好的结果。

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Numerical modeling of flatwise energy absorption behavior of 3D woven honeycomb composites with different cell structures

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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来源期刊

Journal of Sandwich Structures & Materials 工程技术-材料科学：表征与测试

CiteScore

9.60

自引率

2.60%

发文量

审稿时长

7 months

期刊介绍： The Journal of Sandwich Structures and Materials is an international peer reviewed journal that provides a means of communication to fellow engineers and scientists by providing an archival record of developments in the science, technology, and professional practices of sandwich construction throughout the world. This journal is a member of the Committee on Publication Ethics (COPE).