格栅增强夹芯板弯曲刚度影响因素及规律研究

玻璃钢/复合材料 ›› 2018, Vol. 0 ›› Issue (2): 47-51.

格栅增强夹芯板弯曲刚度影响因素及规律研究

王亚楠, 梅志远, 李华东^*, 陈国涛

海军工程大学,武汉430033

收稿日期:2017-08-21 出版日期:2018-02-28 发布日期:2018-02-28
通讯作者: 李华东(1984-),男,讲师,主要从事船用复合材料及其应用方面的研究,lhd0727@163.com。
作者简介:王亚楠(1992-),男,硕士,主要从事复合材料结构强度与振动方面的研究。
基金资助:
国家自然科学基金资助项目(51479205);国家自然科学基金资助项目(51609252);大学自主立项课题(20161596)

RESEARCH ON THE INFLUENCING FACTORS AND LAWS ABOUT BENDING STIFFNESS OF GRILLE REINFORCED SANDWICH PANEL

WANG Ya-nan, MEI Zhi-yuan, LI Hua-dong^*, CHENGuo-tao

Naval Univ. of Engineering, Wuhan 430033, China

Received:2017-08-21 Online:2018-02-28 Published:2018-02-28

摘要/Abstract

摘要： 基于有限元仿真和实验,对格栅增强夹芯板弯曲刚度的影响因素及规律开展了研究。首先,针对格栅结构对夹芯板抗弯特性的影响进行仿真分析,认为格栅结构能够较为显著地提高夹芯板的抗弯刚度;其次,针对格栅增强夹芯板的蒙皮纤维铺层角度、格栅密度等几个重要参数对其弯曲刚度的影响进行仿真计算并对其规律进行分析;最后,通过实验验证了仿真的准确性。分析结果表明,夹芯板蒙皮纤维±45°铺设时夹芯板具有最优的抗弯刚度,且在格栅总体积即含筋量一定的情况下,一定范围内降低单层格栅的厚度以增加格栅的密度会大幅度提高夹芯板的抗弯刚度。

关键词: 格栅增强, 夹芯板, 抗弯特性, 复合材料, 有限元仿真

Abstract: Based on finite element simulation and experiment, influencing factors and laws about bending stiffness of grille reinforced sandwich panels were studied. Firstly, the influence of grille structure on the flexural properties of sandwich panels was simulated and analyzed. It was found that the grille structure can significantly improve the bending stiffness of sandwich panels. Then, the influence of several important parameters, such as the skin fiber angle and the density of the grille, about the bending stiffness of the grille reinforced sandwich panels were simulated and analyzed. Finally, the accuracy of the simulation was verified by experiments. The analysis results show that the sandwich panel had the best bending stiffness when sandwich panel skin fiberswas laid at ±45 degrees. And, if the total volume of the grillewas certain, that is, a certain amount of grille, the thickness of the single grille can be reduced to increase the density of the grille in a certain range, and the bending stiffness of the sandwich panel will be greatly improved.

Key words: grille reinforce, sandwich panel, bending characteristics, composite material, finite element analysis

中图分类号:

TB332

王亚楠, 梅志远, 李华东, 陈国涛. 格栅增强夹芯板弯曲刚度影响因素及规律研究[J]. 玻璃钢/复合材料, 2018, 0(2): 47-51.

WANG Ya-nan, MEI Zhi-yuan, LI Hua-dong, CHENGuo-tao. RESEARCH ON THE INFLUENCING FACTORS AND LAWS ABOUT BENDING STIFFNESS OF GRILLE REINFORCED SANDWICH PANEL[J]. Fiber Reinforced Plastics/Composites, 2018, 0(2): 47-51.

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