低速冲击下纤维金属互穿式复合板的动态响应与损伤

李波; 马钢; 卓国威; 张凯; 马龙

低速冲击下纤维金属互穿式复合板的动态响应与损伤

李波¹,
马钢^1, ,,
卓国威¹,
张凯¹,
马龙²

1.
太原理工大学土木工程学院, 山西 030024
2.
煤炭科学技术研究院有限公司煤炭智能开采与岩层控制全国重点实验室, 北京 100028

基金项目: 国家自然科学基金（52178239）；国家自然科学基金（52205016）

详细信息

通讯作者:
马钢，博士，教授，博士生导师，研究方向为极端环境下材料与结构的力学响应　E-mail: magang@tyut.edu.cn

中图分类号: TB333
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- HTML全文浏览量: 27
- 被引次数: 0
出版历程
- 收稿日期: 2024-06-25
- 修回日期: 2024-07-23
- 录用日期: 2024-08-08
- 网络出版日期: 2024-09-05

Dynamic response and damage of fiber metal interpenetrating composite plate under low-velocity impact

LI Bo¹,
MA Gang^{1
, ,},
ZHUO Guowei¹,
ZHANG Kai¹,
MA Long²

1.
College of Civil Engineering, Taiyuan University of Technology, Taiyuan 030024, China
2.
State Key Laboratory of Intelligent Coal Mining and Strata Control, CCTEG China Coal Research Institute, Beijing 100028, China

Funds: National Natural Science Foundation of China (52178239); National Natural Science Foundation of China (52205016)

摘要

摘要: 纤维增强金属复合材料受到冲击时容易发生金属与纤维分层从而影响力学性能，为了缓解此类现象，将金属板冲孔，使用碳纤维和芳纶纤维交替穿编，制备了一种三维复合材料纤维金属互穿式复合板(Fiber Metal Interpenetrating Composite Plate，FMICP)。进行了低速冲击试验，研究了FMICP在不同冲击速度、冲击面积和冲孔样式下的力学性能。研究表明：当冲击速度在35.19~78.08 m/s之间时，FMICP发生了贯穿破坏，吸收了39.78~70.67 J的冲击能量；受到恒定49 J冲击能量时，冲击面积为491 mm²的FMICP最高能够吸收42.77 J能量；随着冲击面积的增大，FMICP中受到拉伸的纤维数量增多，冲击造成的冲切破坏和局部损伤减小；冲孔类型改变了FMICP中金属基的占比和应力传递方式，椭圆冲孔FMICP (41.11 J)相对矩型冲孔FMICP (34.08 J)能够起到更好的吸收能量的作用。本研究结果可为FMICP的推广应用提供参考。
- 低速冲击 /
- 能量吸收 /
- 三维穿编 /
- 纤维金属互穿式复合板 /
- 动力响应
Abstract: Fiber reinforced metal composites are prone to delamination of metal and fibre when subjected to impact, thus affecting the mechanical properties, in order to alleviate such phenomena, a three-dimensional composite Fiber Metal Interpenetrating Composite Plate (FMICP) was prepared by punching the metal plate and alternately threading it with carbon fibres and aramid fibres. Low-speed impact tests were conducted to investigate the mechanical properties of FMICP at different impact velocities, impact areas and punching styles. The study shows that: when the impact velocity is between 35.19 and 78.08 m/s, the FMICP undergoes penetration damage and absorbs 39.78 J to 70.67 J of impact energy; when subjected to a constant 49 J of impact energy, the FMICP with an impact area of 491 mm² is able to absorb a maximum of 42.77 J of energy; as the impact area increases, the number of fibers subjected to stretching in the FMICP increases, which decreases the punching damage and local damage caused by the impact; the type of punching changes the percentage of metal base in the FMICP and the mode of stress transfer, the elliptical punched FMICP (41.11 J) is able to absorb energy more effectively compared to the rectangular punched FMICP (34.08 J). The results of this study can provide a reference for the promotion and application of FMICP.
- low velocity impact /
- energy absorption /
- three-dimensional braiding /
- fiber metal interpenetrating composite plate /
- dynamic response

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图 1 纤维金属互穿式复合板(FMICP)结构示意图

Figure 1. Schematic diagram of Fiber-Metal Interpenetrating Composite Plate(FMICP) structure

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图 2 FMICP制备过程

Figure 2. FMICP preparation process

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图 3 树脂填充及FMICP试件

Figure 3. Resin filling and FMICP specimens

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图 4 冲击试验装置图：(a)轻气炮示意图；(b)发射系统及采集系统；(c)夹具

Figure 4. Diagram of the impact test setup: (a) Schematic diagram of the light air cannon; (b) Launching system and acquisition system; (c) Fixture

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图 5 FMICP冲击损伤过程(v=37.55 m/s)

Figure 5. Impact damage process of FMICP (v=37.55 m/s)

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图 6 冲击过程弹体变化情况

Figure 6. Changes of the bullet during impact

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图 7 FMICP裂纹分布图

Figure 7. Distribution of FMICP cracks

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图 8 不同冲击速度下FMICP变形

Figure 8. FMICP deformation under different impact velocities

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图 9 不同冲击面积下FMICP变形

Figure 9. FMICP deformation under different impact areas

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图 10 不同冲孔FMICP的破坏模式：(a)椭圆型；(b)圆矩型；(c)矩型

Figure 10. Damage modes of different punched FMICPs: (a) Elliptical; (b) Circular-rectangular; (c) Rectangular

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图 11 A1-1(1)~A1-5 FMICP冲击前后对比图：(a)速度；(b)能量

Figure 11. A1-1(1)~A1-5 FMICP comparison before and after impacts: (a) Velocity；(b) Energy

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图 12 A2-1(1-3)~A3-1(1-3) FMICP冲击前后对比图：(a)速度；(b)能量

Figure 12. A2-1(1-3)~A3-1(1-3) FMICP comparison before and after impacts: (a) Velocity；(b) Energy

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图 13 A1-1(1-3)~C1-1(1-3) FMICP冲击前后对比图：(a)速度；(b)能量

Figure 13. A1-1(1-3)~C1-1(1-3) FMICP comparison before and after impacts: (a) Velocity；(b) Energy

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图 14 FMICP弹道极限拟合曲线图

Figure 14. Ballistic limit fitting curve of FMICP

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图 15 A1-1(1)~A1-5 FMICP变形损伤：(a)变形区域面积；(b)等效变形轮廓图

Figure 15. A1-1(1)~A1-5 FMICP deformation Damage: (a) Area of deformed; (b) Equivalent deformation contours

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图 16 A2-1~A3-1 FMICP变形损伤：(a)变形区域面积；(b)等效变形轮廓图

Figure 16. A2-1~A3-1 FMICP deformation damage: (a) Area of deformed; (b) Equivalent deformation contours

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图 17 A1-1~C1-1 FMICP变形损伤：(a)变形区域面积；(b)等效变形轮廓图

Figure 17. A1-1~C3-1 FMICP deformation damage: (a) Area of deformed; (b) Equivalent deformation contours

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图 18 A1-1(1)~A1-5 FMICP截面挠曲线图：(a) A截面；(b) C截面

Figure 18. A1-1(1)~A1-5 FMICP section deflection curve: (a) A-section; (b) C-section

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图 19 A2-1(1-3)~A3-1(1-3) FMICP截面挠曲线图：(a) A截面；(b) C截面

Figure 19. A2-1(1-3)~A3-1(1-3) FMICP section deflection curve: (a) A-section; (b) C-section

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图 20 A1-1(1-3)~C1-1(1-3) FMICP截面挠曲线图：(a) A截面；(b) C截面

Figure 20. A1-1(1-3)~C1-1(1-3) FMICP section deflection curve: (a) A-section; (b) C-section

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表 1 纤维金属互穿式复合板(FMICP)制备材料力学性能

Table 1. Mechanical properties of Fiber-Metal Interpenetrating Composite Plate(FMICP) prepared materials

Material	Density/ (g·cm⁻³)	Tensile strength/MPa	Yield strength/MPa	Elastic modulus/GPa	Fiber diameter/μm	Elongation at break/%
Aluminium alloy	2.68	230	170	70	—	14
Carbon fibre	1.76	3530	—	230	7	1.5
Aramid fiber	1.45	1750	—	440	15	3.1
Epoxy resin	0.95	75	—	2.0	—	8.7

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表 2 FMICP试件参数

Table 2. FMICP specimen parameters

Number	Thickness/mm	Quality/g	Punch type	Punch shape/mm
AC/AL-A1-1(1)	2.93±0.10	41.0	Elliptical	Elliptical Circular-rectangular Rectangular
AC/AL-A1-1(2)	2.90±0.10	40.7
AC/AL-A1-1(3)	2.94±0.10	41.2
AC/AL-A1-2	3.32±0.10	48.4
AC/AL-A1-3	2.78±0.10	40.2
AC/AL-A1-4	3.16±0.10	47.0
AC/AL-A1-5	2.91±0.10	40.9
AC/AL-A2-1(1)	2.99±0.10	43.8
AC/AL-A2-1(2)	2.95±0.10	42.9
AC/AL-A2-1(3)	2.97±0.10	43.1
AC/AL-A3-1(1)	2.94±0.10	42.9
AC/AL-A3-1(2)	2.89±0.10	42.0
AC/AL-A3-1(3)	2.97±0.10	43.1
AC/AL-B1-1(1)	2.84±0.10	39.7	Circular-rectangular
AC/AL-B1-1(2)	2.91±0.10	40.1
AC/AL-B1-1(3)	2.93±0.10	40.3
AC/AL-C1-1(1)	3.09±0.10	43.3	Rectangular
AC/AL-C1-1(2)	2.98±0.10	42.1
AC/AL-C1-1(3)	3.04±0.10	42.9
Notes:AC/AL is an aramid fibre (A) and carbon fibre (C) reinforced aluminum based (AL) FMICP; The three numbers in A1-1 differentiate between the type of punch, the impact area, and the impact velocity of the specimen, the specimen numbers in the article are abbreviated versions.

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表 3 弹体及弹托力学性能

Table 3. Mechanical properties of Bullet and Shell casing

Parts	Material	Density/(g·cm⁻³)	Tensile strength/MPa	Compressive strength/MPa	Yield strength/MPa	Elastic modulus/GPa
Bullet	Alloy Steel SKD11	7.80	2000	2800	1700	210
Shell casing	Nylon	1.15	75	90	70	2.9

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表 4 FMICP冲击试验结果汇总

Table 4. Summary of FMICP impact test results

Number	Initial velocity/(m·s⁻¹)	Residual velocity/(m·s⁻¹)	Impact area/mm²	Initial energy/J	Residual energy/J	Absorbs energy/J	Energy absorption rate/%
AC/AL-A1-1(1)	35.19	11.94	314	44.96	5.18	39.78	88.49
AC/AL-A1-1(2)	36.94	13.76		49.55	6.88	42.68	86.12
AC/AL-A1-1(3)	35.93	12.86		46.89	6.01	40.88	87.19
AC/AL-A1-2	49.95	35.28		90.58	45.19	45.39	50.11
AC/AL-A1-3	65.15	51.93		154.13	97.90	56.22	36.48
AC/AL-A1-4	68.86	56.52		172.15	115.98	56.17	32.63
AC/AL-A1-5	78.08	64.42		221.34	150.67	70.67	31.93
AC/AL-A2-1(1)	47.54	29.64	177	45.43	17.67	27.77	61.11
AC/AL-A2-1(2)	49.67	28.77		49.58	16.64	32.94	66.44
AC/AL-A2-1(3)	49.02	29.94		48.30	18.02	30.28	62.70
AC/AL-A3-1(1)	30.62	15.59	491	53.85	13.97	39.89	74.07
AC/AL-A3-1(2)	29.74	16.19		50.80	15.05	42.77	73.96
AC/AL-A3-1(3)	30.18	15.84		52.32	14.41	38.58	72.81
AC/AL-B1-1(1)	37.55	23.42	314	51.21	15.15	36.06	70.42
AC/AL-B1-1(2)	36.96	21.33		49.59	16.51	33.08	66.70
AC/AL-B1-1(3)	37.89	20.97		52.11	15.96	36.16	69.39
AC/AL-C1-1(1)	36.81	21.36		49.20	16.57	32.63	66.32
AC/AL-C1-1(2)	38.42	22.87		53.58	18.99	34.60	64.57
AC/AL-C1-1(3)	37.99	21.89		52.39	17.39	35.00	66.80

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表 5 不同冲孔FMICP参数

Table 5. Different punching FMICP parameters

Number	Punch type	Single punching area/mm²	Metal based ratio/%	Metal based quality/g
AC/AL-A1-1(1-3)	Elliptical	12.56	81.91	22.12
AC/AL-B1-1(1-3)	Circular-rectangular	15.14	78.19	21.11
AC/AL-C1-1(1-3)	Rectangular	16	76.96	20.78
Notes: Metal based ratio is the proportion of base metal after punching to the mass of base metal before punching.

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表 6 Recht-Ipson模型拟合参数

Table 6. Recht-Ipson model fitting parameters

	a	p
FMICP	0.823	2.726

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