多层多向层联三维机织复合材料的拉伸性能

郭瑞卿; 张一帆; 吕庆涛; 陈利

doi:10.13801/j.cnki.fhclxb.20200110.001

多层多向层联三维机织复合材料的拉伸性能

doi: 10.13801/j.cnki.fhclxb.20200110.001

郭瑞卿^{1, 2,},
张一帆^{1, 2, 3, ,},
吕庆涛^{1, 2,},
陈利^{1, 2}

1.
天津工业大学　先进纺织复合材料教育部重点实验室，天津 300387
2.
天津工业大学　纺织科学与工程学院，天津 300387
3.
江南大学　生态纺织教育部重点实验室，无锡 214122

基金项目: 国家自然科学基金(11802203)；天津市自然基金(18JCQNJC73200；18JCYBJC87300)；天津市科技计划项目(18 ZXJMTG00190)；生态纺织教育部重点实验室开放基金(KLET1605)

详细信息

通讯作者:
张一帆，博士，助理研究员，研究方向为纺织复合材料制备及力学性能　E-mail：zhangyifan@tiangong.edu.cn

中图分类号: TB332
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- 被引次数: 0
出版历程
- 收稿日期: 2019-11-06
- 录用日期: 2020-01-02
- 网络出版日期: 2020-01-10
- 刊出日期: 2020-10-15

Tensile properties of multilayer multiaxial interlock 3D woven composites

GUO Ruiqing^{1, 2
,},
ZHANG Yifan^{1, 2, 3
, ,},
LV Qingtao^{1, 2
,},
CHEN Li^{1, 2}

1.
Key Laboratory of Advanced Textile Composite Materials, Ministry of Education, Tiangong University, Tianjin 300387, China
2.
School of Textile Science and Engineering, Tiangong University, Tianjin 300387, China
3.
Key Laboratory of Eco-textiles, Ministry of Education, Jiangnan University, Wuxi 214122, China

摘要

摘要: 设计制备了3种不同结构的多层多向层联三维机织复合材料(M3DAWC)，利用非接触式全场应变测量系统和SEM对其拉伸性能进行了研究。研究表明，织物结构对M3DAWC的宏观力学行为有重要的影响，沿0°方向拉伸，破坏模式随着斜向纱体积分数的增加，从齐口破坏演变为斜向纱的抽拔失效，沿90°方向拉伸，破坏模式基本一致，表现为斜向纱的抽拔和滑脱。同时，斜向纱体积分数对M3DAWC的拉伸强度和拉伸模量也有显著影响，沿0°方向拉伸，随着斜向纱体积分数的增加，拉伸强度和拉伸模量逐渐减小，沿90°方向拉伸则表现出相反的变化规律。
- 多层多向 /
- 三维机织复合材料 /
- 拉伸性能 /
- 破坏机制
Abstract: Three kinds of multilayer multiaxial interlock 3D woven composites (M3DAWC) were designed and prepared. Digital image correlation system (DIC) and SEM were employed to study the tensile properties of these composites. The results show that the fabric structure has significant effects on the mechanical behavior of M3DAWC. In 0° loading direction, with the increase of the bias yarn volume fraction, the failure mode changes from the neat damage to bias yarn withdrawal. The failure mode exhibits similar trends with that of 0° when the specimens were stretched along 90°, which are pull-out and slippage of the bias yarns. Meanwhile, the volume fraction of the bias yarn also has a significant influence on the tensile strength and modulus of the M3DAWC. In 0° loading direction, the tensile strength and modulus gradually decrease with the increase of bias yarn volume fraction. However, the tensile strength and modulus show an opposite pattern in 90° loading direction.
- multilayer multiaxial /
- 3D woven composites /
- tensile properties /
- failure mechanism

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图 1 多层多向层联三维机织结构示意图

Figure 1. Schematic diagram of multilayer multiaxial interlock three-dimensional woven structure

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图 2 M3DAWC拉伸试验试样

Figure 2. Tensile test samples of M3DAWC

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图 3 M3DAWC拉伸试验过程

Figure 3. Tensile test process of M3DAWC

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图 4 M3DAWC拉伸应力-应变曲线

Figure 4. Tensile stress-strain curves of M3DAWC

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图 5 M3DAWC应变云图

Figure 5. Strain contours of M3DAWC

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图 6 M3DAWC试样断裂形貌

Figure 6. Fracture morphologies of M3DAWC samples

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图 7 应变仪测得M3DAWC应力-应变曲线

Figure 7. Stress-strain curves of M3DAWC measured by strain gauge

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图 8 M3DAWC拉伸强度和拉伸模量

Figure 8. Tensile strength and modulus of M3DAWC

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图 9 斜向纱比例对M3DAWC强度的影响

Figure 9. Effect of proportion of bias yarn on the strength of M3DAWC

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表 1 碳纤维规格

Table 1. Specification of carbon fiber

Yarn system	Yarn specification	Density/(g·cm⁻³)	Yarn linear density/tex
Binder warp	TG800HXC-6K	1.8	250
90° yarn	TG800X-12K×2	1.8	1 000
0° yarn	TG800X-12K×2	1.8	1 000
±45° yarn	TG800X-12K×2	1.8	1 000

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表 2 碳纤维力学性能

Table 2. Mechanical properties of carbon fiber

Product type	Tensile strength/MPa	Breakage elongation/%	Tensile modulus/GPa
TG800	5 678	2.32	290

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表 3 多层多向层联三维机织复合材料(M3DAWC)结构参数

Table 3. Structural parameters of multilayer multiaxial interlock three-dimensional woven composites (M3DAWC)

No.	Layer stacking sequence	Fabric density/(tow·m⁻¹)			Thickness h/mm	Fiber volume fraction/vol%
No.	Layer stacking sequence	0° direction	90° direction	±45° direction	Thickness h/mm	Fiber volume fraction/vol%
SY01J	[90/45/0/0/-45/90/-45/0/0/45/90]	4	4	4	5.65	54.71
SY01W	[90/45/0/0/-45/90/-45/0/0/45/90]	4	4	4	5.75	54.03
SY02J	[90/45/0/-45/90/-45/0/45/90]	4	4	4	4.64	55.49
SY02W	[90/45/0/-45/90/-45/0/45/90]	4	4	4	4.58	55.77
SY03J	[90/45/-45/90/-45/45/90]	4	4	4	4.09	55.49
SY03W	[90/45/-45/90/-45/45/90]	4	4	4	3.90	54.94

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表 4 DIC和应变片试验结果对比

Table 4. Comparison of experimental results between DIC and strain gauge

No.	Tensile modulus/GPa		Deviation/%
No.	Strain gauge	DIC	Deviation/%
SY01-0	53.45	55.10	2.99
SY01-90	42.73	42.48	0.59
SY02-0	42.63	40.49	5.28
SY02-90	47.82	47.92	0.21
SY03-0	18.39	18.92	2.80
SY03-90	51.32	50.82	0.98

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