复合材料蜂窝夹芯缺陷超声检测模拟研究

郝威; 李明; 徐莹; 马志远; 王珏; 林莉

doi:10.13433/j.cnki.1003-8728.20220056

复合材料蜂窝夹芯缺陷超声检测模拟研究

doi: 10.13433/j.cnki.1003-8728.20220056

郝威^1,,
李明¹,
徐莹¹,
马志远²,
王珏¹,
林莉²

1.
沈阳飞机工业（集团）有限公司，沈阳　110034
2.
大连理工大学无损检测研究所，辽宁大连　116024

详细信息

作者简介:
郝威（1986−），高级工程师，博士，研究方向为理化与无损检测，vickysol@126.com

中图分类号: TG156
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- PDF下载量: 16
- 被引次数: 0
出版历程
- 收稿日期: 2021-07-04
- 刊出日期: 2023-08-31

Ultrasonic Testing Simulation Research of Honeycomb Core Defects in Composite Sandwich Structure

1.
Shenyang Aircraft Industry (group) Co., Ltd., Shenyang 110034, China
2.
NDT&E Laboratory, Dalian University of Technology, Dalian 116024, Liaoning, China

摘要

摘要: 实际检测中发现，复合材料蜂窝夹层结构中的芯格塌陷和胞壁鼓泡缺陷能够引起喷水超声穿透法C扫描检测中超声大幅度衰减。为了从理论上分析并验证蜂窝夹芯缺陷对穿透法超声传播的影响，本文采用3D有限元建模仿真方法，分别模拟了超声波在蜂窝壁完好、芯格塌陷、胞壁鼓泡这3种模型中的传播方式，研究了不同缺陷种类的尺寸和数量对、超声透射波幅值的影响，讨论了复合材料蜂窝芯格塌陷和胞壁鼓泡缺陷引起零件检测中超声波大幅度衰减的原因，与实际超声C扫描检测结果具有较好的一致性。
- 蜂窝夹层结构 /
- 超声检测 /
- 芯格塌陷 /
- 胞壁鼓泡 /
- 有限元模拟
Abstract: A large ultrasonic attenuation is found in water-squirting through-transmission ultrasonic C-scan detection of composite aramid paper honeycomb sandwich structure, which is caused by the defects of honeycomb collapse and cell bubbling. 3D finite element modeling simulation method is used to analyze and verify the influence of the honeycomb sandwich defects on the ultrasonic propagation in penetrating method. The propagation modes of ultrasonic wave in the integrity honeycomb, honeycomb with collapse and cell bubbling defects are simulated. The influences of the size and number of different defects on the amplitude of ultrasonic transmission wave are analyzed. The causes of the ultrasonic wave attenuation are discussed. The results of finite element simulation are consistent with those of the ultrasonic C scan test.
- honeycomb sandwich structure /
- ultrasonic testing /
- honeycomb collapse /
- honeycomb cell bubbling /
- finite element simulation

HTML全文

图 1 碳纤维复合材料蜂窝夹层缺陷

Figure 1. Honeycomb core defects in carbon composite honeycomb sandwich structure

下载: 全尺寸图片幻灯片

图 2 蜂窝夹层结构喷水穿透法C-扫描图

Figure 2. Water-squirting through-transmission ultrasonic C-scan images of honeycomb sandwich structures

下载: 全尺寸图片幻灯片

图 3 蜂窝芯完好的蜂窝夹层结构模型

Figure 3. Model of honeycomb sandwich structure with intact honeycomb core

下载: 全尺寸图片幻灯片

图 4 蜂窝芯鼓泡的蜂窝夹层结构模型

Figure 4. Model of honeycomb sandwich structure with lattices bubbling defects honeycomb core

下载: 全尺寸图片幻灯片

图 5 蜂窝芯塌陷的蜂窝夹层结构模型

Figure 5. Model of honeycomb sandwich structure with lattices collapse defects honeycomb core

下载: 全尺寸图片幻灯片

图 6 蜂窝夹层结构模型波场快照

Figure 6. Wavefield snapshot of honeycomb sandwich structure model

下载: 全尺寸图片幻灯片

表 1 复合材料蜂窝夹层结构基本参数

Table 1. Basic parameters of composite honeycomb sandwich structure

部位	密度/ （g·cm^–³）	纵波声速/ （m·s^–1）	弹性模量/ GPa	声阻抗/ MRayl
上蒙皮	1.87	3194	12.718	5.973
下蒙皮	1.78	2680	8.514	4.675
蜂窝	0.8	2217	2.619	1.774

下载: 导出CSV

表 2 鼓泡缺陷对透射幅值变化的影响

Table 2. Effect of lattices bubbling defects on transmission amplitude changes

缺陷直径/mm	缺陷数量/排	透射波幅值分贝变化/dB
完好	0	0
2.0	1	−1.8
2.0	2	−2.5
2.0	3	−11.8
2.2	3	−16.1
2.4	3	−21.1
2.8	3	−26.1

下载: 导出CSV

表 3 塌陷缺陷对透射幅值变化的影响

Table 3. Effect of lattices collapse defects on transmission amplitude changes

缺陷内伸长度/mm	缺陷数量/个	透射波幅值分贝变化/dB
完好	0	0
0.5	1	−1.0
0.5	4	−6.5
0.5	7	−13.3
0.7	7	−14.0
1.0	7	−18.1
1.2	7	−23.6
1.6	7	−32.2

下载: 导出CSV

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