不同衬经纱占比的三维角联锁机织增强复合材料弯曲性能

王颖杰; 王海楼; 张伟

doi:10.13801/j.cnki.fhclxb.20220811.005

不同衬经纱占比的三维角联锁机织增强复合材料弯曲性能

doi: 10.13801/j.cnki.fhclxb.20220811.005

王颖杰^1,,
王海楼^{1, 2, ,},
张伟^{1, 2}

1.
南通大学　纺织服装学院，南通 226019
2.
南通大学　安全防护用特种纤维复合材料研发国家地方联合工程研究中心，南通 226019

基金项目: 国家自然科学基金(11802144)；江苏省高等学校基础科学(自然科学)重大项目(21 KJA540001)；江苏高校“青蓝工程”National Natural Science Foundation of China (11802144); Major Program of Basic Science (Natural Science) of Higher Education of Jiangsu Province (21KJA540001); Jiangsu University “Qinglan Project”

详细信息

通讯作者:
王海楼，博士，副教授，硕士生导师，研究方向为纺织结构复合材料　E-mail: wanghl1130@ntu.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: 2022-06-06
- 修回日期: 2022-07-12
- 录用日期: 2022-07-31
- 网络出版日期: 2022-08-12
- 刊出日期: 2023-06-15

Bending properties of three-dimensional angle interlocking woven reinforced composites with different proportions of warp insertion

WANG Yingjie^1
,,
WANG Hailou^{1, 2
, ,},
ZHANG Wei^{1, 2}

1.
School of Textile and Clothing, Nantong University, Nantong 226019, China
2.
National & Local Joint Engineering Research Center of Technical Fiber Composites for Safety and Protection, Nantong 226019, China

摘要

摘要: 三维角联锁机织增强复合材料(3DAWCs)具有优异的结构整体性和力学性能。为探究3DAWCs中衬经纱对力学性能的影响，本文设计并制备不同衬经纱占比的3DAWCs，研究不同温度场中不同衬经纱占比3DAWCs的弯曲性能。衬经纱与经纱比例包括：0∶1、1∶1和2∶1。温度场包括：20℃、80℃和150℃。研究结果表明：衬经纱对3DAWCs厚度、纱线形态、载荷-挠度曲线形态、弯曲强度、损伤分布均影响显著；随衬经纱占比增加，3DAWCs的厚度和最大弯曲载荷增加，但1∶1型和2∶1型试样的弯曲强度相差较小；随温度升高，试样弯曲性能下降，但在不同温度场中，不同衬经占比试样的经纬向弯曲性能对温度的敏感性不同。
- 三维角联锁机织物 /
- 衬经纱 /
- 复合材料 /
- 弯曲性能 /
- 温度
Abstract: 3D woven reinforced composites have good structural integrity and mechanical properties. In order to explore the influence of warp insertion on mechanical properties of three-dimensional angle interlocking woven reinforced composites (3DAWCs), 3DAWCs with different proportions of warp insertion were designed and prepared in this paper. The bending properties of 3DAWCs with different proportions of warp insertion were studied in different temperature fields. The ratios of warp insertion to warp are 0∶1, 1∶1 and 2∶1. The testing temperatures include 20°C, 80°C and 150°C. The results show that the warp insertion have a significant effect on 3DAWC’s thickness, shape of yarn, shape of load-deflection curve, bending strength and damage distribution. The thickness and maximum bending load of 3DAWCs increase with the increase of the proportion of warp insertion, but the difference of bending strength between 1∶1 and 2∶1 is minor. The bending properties of the specimen decrease with the increase of temperature. In different temperature fields, the warp and weft bending properties of samples with different warp insertion ratios have different sensitivities to temperature.
- 3D angle interlocking woven /
- warp insertion /
- composite /
- bending property /
- temperature

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图 1 织物结构和纱线排列

Figure 1. Textile structures and yarn arrangement

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图 2 三维角联锁机织物

Figure 2. Three-dimensional angle interlocking woven perform

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图 3 弯曲试样

Figure 3. Sample for bending test

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图 4 3DAWC中的纱线形态

Figure 4. Curve shape of yarn in 3DAWC

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图 5 3DAWC经向试样和纬向试样弯曲载荷-挠度曲线

Figure 5. Bending load-displacement curves of 3DAWC in warp and weft directions

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图 6 3DAWC经向试样和纬向试样最大弯曲载荷

Figure 6. Maximum bending load of 3DAWC in warp and weft directions

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图 7 3DAWC经向试样弯曲失效过程(20℃)

Figure 7. Bending failure process of 3DAWC in warp direction (20℃)

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图 12 3DAWC弯曲后的两个侧面形貌(20℃)

Figure 12. Two side surface morphologies of 3DAWC after bending (20℃)

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图 8 3DAWC纬向试样弯曲失效过程(20℃)

Figure 8. Bending failure process of 3DAWC in weft direction(20℃)

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图 9 3DAWC经纬向试样弯曲应力-应变曲线

Figure 9. Bending stress-strain curves of 3DAWC in warp and weft directions

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图 10 3DAWC经纬向试样弯曲强度

Figure 10. Bending strength of 3DAWC in warp and weft directions

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图 11 3DAWC经纬向试样弯曲模量

Figure 11. Bending modulus of 3DAWC in warp and weft directions

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图 13 不同温度下AWC1试样弯曲后两个侧面形貌

Figure 13. Two side surface morphologies of AWC1 after bending at different temperatures

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表 1 碳纤维性能参数

Table 1. Performance parameters of carbon fiber

Density/ (g·cm⁻³)	Breakage elongation/%	Tensile strength/MPa	Tensile modulus/GPa
1.79	2.1	4900	230

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表 2 环氧树脂性能参数

Table 2. Performance parameters of epoxy resin

Density/ (g·cm⁻³)	Compressive strength/MPa	Compressive modulus/MPa	Glass transition temperature/℃
1.12	117	2166	110-120

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表 3 三维角联锁机织物(3DAWF)的结构参数

Table 3. Structural parameters of three-dimensional angle interlocking woven (3DAWF)

Symbol	Warp insertion: Warp	Weave density in weft direction/(ends·cm⁻¹)	Weave density in warp direction/(ends·cm⁻¹)	Warp yarn volume fraction/vol%	Warp insertion yarn volume fraction/vol%
AWF0	0∶1	20	20	20.6	0
AWF1	1∶1	20	20	12.9	12.9
AWF2	2∶1	20	20	7.8	13.2

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表 4 不同衬经占比三维角联锁机织增强复合材料(3DAWC)厚度

Table 4. Thickness of three-dimensional angle interlocking woven reinforced composites (3DAWC) with different proportion of warp insertion

Sample	Thickness/mm
AWC0	4.05
AWC1	4.14
AWC2	5.15

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