低速冲击下复合材料组合板新型耗能模式研究  

Study of a new energy consumption model of composite panels under low-velocity impact

作　　者：王涛 杨勇新[1] WANG Tao;YANG Yong-xin(Central Research Institute of Building and Construction Co.,Ltd.,MCC Group,Beijing 100088,China)

机构地区：[1]中冶建筑研究总院有限公司,北京100088

出　　处：《复合材料科学与工程》2022年第2期75-81,共7页Composites Science and Engineering

基　　金：国家自然科学基金项目(51678579)。

摘　　要：目前对复合材料抗冲击性能的研究大部分都是从材料耗能的角度出发开展的,主要的耗能形式是材料的变形和断裂。从材料与结构一体化的思路出发,本文提出一种新的复合材料组合板结构,该结构在一般的抗冲击复合材料板(本结构中称为迎冲面板)的基础上,增加置于组合板内部的滑动体。在低速冲击作用下,这种结构形式可以在材料的变形耗能基础上增加滑动体运动耗能,提高组合板的抗冲击能力。在既有研究的基础上,针对本结构型式的特点,考虑冲击能量、滑动体的滑动角度、滑动体的质量、迎冲面板的厚度等四个主要因素对结构耗能效果的影响进行数值分析研究。采用ABAQUS软件进行数值模拟建模、计算,并对模拟的结果进行关联度分析,结果表明:通过滑动体运动耗能这一新型耗能模式是可行的。与滑动体耗能效果的最佳关联因素顺序依次为滑动角度、滑动体质量、冲击能量、迎冲面板厚度。其中,滑动体消耗的能量与冲击能量呈正相关,与滑动角度呈正相关,与滑动体质量呈负相关,与迎冲面板厚度呈负相关的关系。最后,建立了基于多元线性回归方法的滑动体消能计算公式。Most of the current research on the impact resistance of composite materials has been carried out from the perspective of material energy dissipation, which is mainly in the form of deformation and fracture of the material. From the idea of material and structure integration, this paper proposes a new composite panel structure, which is based on the general impact resistant composite panel(called impact panel in this structure), and adds a sliding body placed inside the composite panel. Under the effect of low velocity impact, this structure form can increase the sliding body motion energy consumption in addition to the deformation energy consumption of the material, and improve the impact resistance of the composite plate. Based on the existing research, according to the characteristics of the structure type, the influence of the impact energy, the sliding angle of the sliding body, the mass of the sliding body and the thickness of the impact panel on the energy dissipation effect of the structure is numerically analyzed. The numerical simulation modeling and calculation were carried out by ABAQUS software, and the correlation analysis of the simulation results showed that the new energy dissipation mode of energy dissipation by sliding body motion is feasible. The best correlation factors with the sliding body energy dissipation effect are sliding angle, sliding body mass, impact energy, and thickness of the impact panel in order. Among them, the energy consumed by the sliding body is positively correlated with the impact energy, positively correlated with the sliding angle, negatively correlated with the sliding body mass, and negatively correlated with the thickness of the impact panel. Finally, the slider energy dissipation formula based on multiple linear regression method is established.

关 键 词：复合材料组合板 低速冲击 有限元模拟 能量耗散 动能 关联度 

分 类 号：TB332[一般工业技术—材料科学与工程]