基于3D-DIC对爆炸作用下碳纤维层合板的变形研究

刘青青; 郭保桥; 石晨; 陈鹏万

doi:10.11858/gywlxb.20190739

基于3D-DIC对爆炸作用下碳纤维层合板的变形研究

doi: 10.11858/gywlxb.20190739

北京理工大学爆炸科学与技术国家重点实验室，北京　100081

基金项目: 国家自然科学基金（11472047）

详细信息

作者简介:
刘青青（1990－），女，硕士研究生，主要从事碳纤维复合材料在冲击作用下力学行为研究.E-mail：1154571045@qq.com

通讯作者:
郭保桥（1977－），男，博士，讲师，主要从事实验力学和冲击动力学研究.E-mail：baoqiao_guo@bit.edu.cn

中图分类号: O347.1; TB332
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- 文章访问数: 9446
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出版历程
- 收稿日期: 2019-03-11
- 修回日期: 2019-04-26

Deformation of Carbon Fiber Laminates underExplosion Based on 3D-DIC

State Key Laboratory of Explosion Science and Technology, Beijing Institute of Technology, Beijing 100081, China

摘要

摘要: 针对3种不同铺层的碳纤维复合材料层合板，设计了开放式爆炸加载实验，研究不同的炸药质量和爆炸距离下层合板的动态力学行为。基于两台高速相机，搭建了高速三维变形场的实验测量系统，记录层合板在爆炸作用下动态变形过程。通过三维数字图像相关方法（3D-DIC）软件计算得到层合板在冲击波作用下的动态位移场和应变场。研究发现：层合板在弱冲击波作用下只发生弹性变形，正交铺层和准均质铺层均表现出良好的抗冲击能力；在强冲击波作用下层合板会产生分层、基体开裂、纤维断裂等形式的损伤，铺层顺序对损伤形式有很大影响。
- 碳纤维层合板 /
- 三维数字图像相关方法 /
- 爆炸 /
- 损伤 /
- 破坏
Abstract: An open explosion loading experiment was designed for three differently laminated carbon fiber composite laminates to study the dynamic mechanical behavior of the laminates under different explosive masses and explosive distances. Based on two high-speed cameras, an experimental measurement system for high-speed three-dimensional deformation field was built, and the images of the dynamic deformation process of the laminates under the action of the explosion were recorded. The dynamic displacement field and strain field of the laminates under the shock wave were calculated by 3D-DIC software. The results show that the laminates only undergo elastic deformation under low shock wave, and the orthogonal layer and the quasi-homogeneous layer have good impact resistance; under the action of high shock wave, the laminates will cause damage in the form of delamination, matrix cracking, fiber breakage, etc. The order of the layup has a great influence on the form of damage.
- carbon fiber reinforced laminate /
- 3D-DIC /
- blasting loading /
- damage /
- failure

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图 1 层合板的安装示意图

Figure 1. Schematic diagram of the installation of laminate

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图 2 测量系统示意图

Figure 2. Schematic diagram of the measurement system

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图 3 计算区域选择

Figure 3. Calculation area selection

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图 4 A型层合板表面破坏损伤形态

Figure 4. Damage form on the surface of plate A

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图 5 A型板位移场变化

Figure 5. Variation of the displacement field of the plate A

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图 6 B型层合板位移场变化图

Figure 6. Displacement field change of plate B

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图 7 中心点的位移随时间变化曲线

Figure 7. Displacement curve over time of a pointnear the center

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图 8 B、C型板中心点最大主应变随时间变化的曲线

Figure 8. Curve of maximum principal strain over time at the center point of plates B and C

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图 9 B型和C型板所选曲线的位移变化对比

Figure 9. Comparison of displacement changes of selected curves from plates B and C

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图 10 B型和C型板损伤表面形态

Figure 10. Surface damage morphology of plates B and C

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图 11 中心点位移随时间变化曲线

Figure 11. Displacement curve of center point over time

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表 1 碳纤维层合板铺层方式

Table 1. Lamination of carbon fiber laminates

Material type Laying method Thickness/mm

A [0°]₂₄ 3.00
B [0°/90°/45°/–45°/–45°/45°/90°/0°]₃ 3.00
C [45°/0°/–45°/90°/90°/–45°/0°/45°]₃ 3.00

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表 2 复合材料单层板的弹性力学参数

Table 2. Elastic parameters of composite laminates

E₁₁/GPa E₂₂/GPa E₃₃/GPa G₁₂/GPa G₁₃/GPa G₂₃/GPa ${\upsilon _{12}}$ ${\upsilon _{13}}$ ${\upsilon _{23}}$

131.00 10.20 10.20 6.30 6.30 3.91 0.25 0.25 0.38

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表 3 不同类型的层合板实验参数

Table 3. Experimental parameters of different types of laminates

Test No. Laminate type Explosive mass/g Explosion distance/mm

1 A 20 350
2 B 20 350
3 B 35 210
4 C 20 350
5 C 20 100

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表 4 层合板宏观损伤情况

Table 4. Macroscopic damage of the laminates

Test No. Macroscopic form of destruction

1 2 penetrating cracks and 5 obvious cracks
2 No visible crack
4 No visible crack

下载: 导出CSV

参考文献(16)

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[2]	恽寿榕, 赵衡阳. 爆炸力学 [M]. 北京: 国防工业出版社, 2005. YAN S Y, ZHAO H Y. Explosion mechanics [M]. Beijing: National Defence Industry Press, 2005.
[3]	张如一, 沈观林, 李朝弟. 应变电测与传感器 [M]. 北京: 清华大学出版社, 1999. ZHANG R Y, SHEN G L, LI C D. Strain electrical measurement and sensor [M]. Beijing: Tsinghua University Press, 1999.
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[7]	PAN B, ASUNDI A, XIE H M, et al. Digital image correlation using iterative least squares and pointwise least squares for displacement field and strain field measurements [J]. Optics and Lasers in Engineering, 2009, 47(7/8): 865–874.
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文章访问数: 9446
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Material type	Laying method	Thickness/mm
A	[0°]₂₄	3.00
B	[0°/90°/45°/–45°/–45°/45°/90°/0°]₃	3.00
C	[45°/0°/–45°/90°/90°/–45°/0°/45°]₃	3.00

E₁₁/GPa	E₂₂/GPa	E₃₃/GPa	G₁₂/GPa	G₁₃/GPa	G₂₃/GPa	${\upsilon _{12}}$	${\upsilon _{13}}$	${\upsilon _{23}}$
131.00	10.20	10.20	6.30	6.30	3.91	0.25	0.25	0.38

Test No.	Laminate type	Explosive mass/g	Explosion distance/mm
1	A	20	350
2	B	20	350
3	B	35	210
4	C	20	350
5	C	20	100

Test No.	Macroscopic form of destruction
1	2 penetrating cracks and 5 obvious cracks
2	No visible crack
4	No visible crack

基于3D-DIC对爆炸作用下碳纤维层合板的变形研究

doi: 10.11858/gywlxb.20190739

作者简介: 刘青青（1990－），女，硕士研究生，主要从事碳纤维复合材料在冲击作用下力学行为研究.E-mail：1154571045@qq.com

通讯作者: 郭保桥（1977－），男，博士，讲师，主要从事实验力学和冲击动力学研究.E-mail：baoqiao_guo@bit.edu.cn

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Deformation of Carbon Fiber Laminates underExplosion Based on 3D-DIC

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目录

作者简介:
刘青青（1990－），女，硕士研究生，主要从事碳纤维复合材料在冲击作用下力学行为研究.E-mail：1154571045@qq.com

通讯作者:
郭保桥（1977－），男，博士，讲师，主要从事实验力学和冲击动力学研究.E-mail：baoqiao_guo@bit.edu.cn