经纱路径对三维机织复合材料弯曲性能的影响

赵世波; 陈利; 高梓越; 王晶晶

经纱路径对三维机织复合材料弯曲性能的影响

赵世波^{1, 2},
陈利^{1, 2, ,},
高梓越^{1, 2},
王晶晶^{1, 2}

1.
天津工业大学　复合材料研究院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

基金项目: 国家科技重大专项(2017-Ⅶ-0011-0177)；航空发动机及燃气轮机基础科学中心项目(P2022-B-IV-014-001)；天津市海河实验室项目(22HHXCJC00007)

详细信息

通讯作者:
陈利，博士，教授，博士生导师，研究方向为先进纺织增强材料及其复合材料　E-mail: chenli@tiangong.edu.cn

中图分类号: TB332
计量
- 文章访问数: 52
- HTML全文浏览量: 27
- 被引次数: 0
出版历程
- 收稿日期: 2024-01-25
- 修回日期: 2024-02-22
- 录用日期: 2024-02-28
- 网络出版日期: 2024-03-26

Effect of warp yarn paths on bending properties of 3D woven composites

ZHAO Shibo^{1, 2},
CHEN Li^{1, 2
, ,},
GAO Ziyue^{1, 2},
WANG Jingjing^{1, 2}

1.
Ministry of Education Key Laboratory of Advanced Textile Composite Materials, Institute of Composite Materials, Tiangong University, Tianjin 300387, China
2.
School of Textile Science and Engineering, Tiangong University,Tianjin 300387, China

Funds: National Science and Technology Major Project of the Ministry of Science and Technology of China (2017-Ⅶ-0011-0177); Basic Scientific Research Center Project of the Aero-engine and Gas Turbine (P2022-B-IV-014-001); Tianjin Haihe Laboratory Project (22HHXCJC00007)

摘要

摘要: 设计了三种不同经纱路径的三维机织复合材料(3DWC)，利用试验研究，有限元分析，SEM形貌分析相结合的方法，研究了3DWC弯曲性能，损伤机理，断裂形貌特征。研究表明，经纱路径对3DWC弯曲性能有显著影响，相对于衬经平纹机织复合材料(SPWC)，随着经纱浮纱长度增加，衬经斜纹和衬经缎纹机织复合材料(STWC和SSWC)弯曲强度分别增加了54.64%和127.61%，弯曲模量分别增加了44.11%和47.11%。SPWC破坏模式为经纱和衬经纱断裂，STWC和SSWC失效模式以纱线断裂和界面脱粘为主。在弯曲载荷加载过程中衬经纱起主要的承载作用，而经纱路径的差异导致三种3DWC应力传递，裂纹扩展，弯曲性能和失效模式发生变化。
- 经纱路径 /
- 弯曲性能 /
- 多尺度模型 /
- 三维机织复合材料 /
- 失效模式
Abstract: Three types of 3D woven composites (3DWC) with different warp paths were designed. Using a combination of experimental research, finite element analysis and SEM morphology analysis, the bending properties, damage mechanism and fracture morphology of 3DWC were studied. The results show that the warp paths have a significant effect on the bending properties of 3DWC. Compared to the stuffer plain woven composites (SPWC), with the increase of the warp yarns float length, the stuffer twill and stuffer stain woven composites (STWC and SSWC) bending strength increase by 54.64% and 127.61%, and the modulus increase by 44.11% and 47.11%, respectively. The failure modes of the SPWC are the fracture of the stuffer and the warp yarns, while the fracture modes of the STWC and SSWC are mainly yarns fracture and interface debonding. The stuffer yarns play the main role under the process of bending load, while the difference of warp yarn paths leads to the change of stress transfer, crack propagation, bending property and failure mode of three 3DWC.
- warp yarn paths /
- bending property /
- multi-scale model /
- 3D woven composites /
- failure mode

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图 1 三种三维机织复合材料(3DWC)预制体示意图

Figure 1. Diagram of three kinds of 3D woven composites(3DWC) preforms

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图 2 衬经平纹机织预制体织造工艺

Figure 2. Weaving process of stuffer plain woven preform

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图 3 3DWC三点弯曲试验装置

Figure 3. Three-point bending test device of 3DWC

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图 4 3DWC多尺度模型

Figure 4. Multi-scale model of 3DWC

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图 5 衬经平纹机织复合材料(SPWC)应力分布

Figure 5. Stress distribution of stuffer plain woven composites (SPWC)

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图 6 衬经斜纹机织复合材料(STWC)应力分布

Figure 6. Stress distribution of stuffer twill woven composites (STWC)

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图 7 衬经缎纹机织复合材料(SSWC)应力分布

Figure 7. Stress distribution of stuffer stain woven composites (SSWC)

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图 8 3DWC弯曲载荷-位移曲线

Figure 8. Bending load-displacement curves of 3DWC

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图 9 三种3DWC失效断裂形貌

Figure 9. Failure fracture morphologies of three 3DWC

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图 10 三种3DWC弯曲强度和弯曲模量对比

Figure 10. Bending strength and bending modulus of three 3DWC

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表 1 3DWC预制体织造参数

Table 1. Preform weaving parameter of 3DWC

Structure	Interweaving pattern of preform surface	Warp specification(500 Tex)	Stuffer specification (1000 Tex)	Weft specification (1000 Tex)	Unit cell size/mm
SPWC	1/1	12K	24 K	24 K	5×5×3.5
STWC	1/3	12K	24 K	24 K	10×10×3.5
SSWC	8/3	12K	24 K	24 K	20×20×3.5
Notes: SPWC—Stuffer plain woven composites; STWC—Stuffer twill woven composites; SSWC—Stuffer stain woven composites.

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表 2 3DWC三种结构建模参数

Table 2. Three structural modeling parameters of 3DWC

Structure	Warp cross-section		Stuffer cross-section		Weft cross-section
Structure	Height/mm	Width/mm	Height/mm	Width/mm	Height/mm	Width/mm
SPWC	0.32	1.25	0.50	1.25	0.50	1.80
STWC	0.30	1.25	0.56	1.25	0.43	2.40
SSWC	0.30	1.25	0.56	1.25	0.43	3.40

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表 3 T800-12K碳纤维工程常数(GPa)

Table 3. Engineering constants of T800-12K carbon fiber bundle (GPa)

E₁₁	E₂₂	E₃₃	G₁₂	G₁₃	G₂₃	v₁₂	v₁₃	v₂₃
221.43	9.12	9.12	6.17	6.17	3.42	0.31	0.31	0.35

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表 4 T800-12K碳纤维和5284环氧树脂材料参数

Table 4. Material parameters of T800-12K carbon fiber and 5284 epoxy resin

Material	Modulus of elasticity/GPa	Poisson's ratio	Density/(g·cm⁻³)	Failure stress/MPa
Carbon fiber	-	-	1.79	5700
Epoxy matrix	3.50	0.34	1.12	60

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表 5 3DWC工程常数性能参数(GPa)

Table 5. Engineering constant performance parameters of 3DWC (GPa)

Structures	E₁₁	E₂₂	E₃₃	G₁₂	G₁₃	G₂₃	v₁₂	v₁₃	v₂₃
SPWC	40.91	64.18	8.26	3.28	2.75	2.46	0.03	0.49	0.35
STWC	47.26	64.14	7.13	3.29	2.71	2.34	0.02	0.49	0.41
SSWC	51.71	62.62	7.11	3.30	2.38	2.29	0.03	0.49	0.43

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