纺织学报 ›› 2021, Vol. 42 ›› Issue (05): 84-89.doi: 10.13475/j.fzxb.20200605506

• 纺织工程 • 上一篇    下一篇

冲击波在陶瓷增强纬编双轴向多层衬纱织物及机织物复合材料中传递的表征

乔灿灿1,2, 姜亚明1,2, 齐业雄1,2(), 林温妮1,2, 张野1,2   

  1. 1.天津工业大学 纺织科学与工程学院, 天津 300387
    2.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
  • 收稿日期:2020-06-18 修回日期:2021-02-13 出版日期:2021-05-15 发布日期:2021-05-20
  • 通讯作者: 齐业雄
  • 作者简介:乔灿灿(1994—),女,硕士生。主要研究方向为纬编复合材料的设计与成型。
  • 基金资助:
    天津市自然科学基金项目(18JCQNJC73300)

Characterization of shock wave propagation in ceramic reinforced weft-knitted biaxial multilayer yarnlining fabric and woven fabrics composites

QIAO Cancan1,2, JIANG Yaming1,2, QI Yexiong1,2(), LIN Wenni1,2, ZHANG Ye1,2   

  1. 1. School of Textile Science and Engineering, Tiangong University, Tianjin 300387, China
    2. Key Laboratory of Advanced Textile Composites, Ministry of Education, Tiangong University, Tianjin 300387, China
  • Received:2020-06-18 Revised:2021-02-13 Online:2021-05-15 Published:2021-05-20
  • Contact: QI Yexiong

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摘要：

为了分析冲击波在复合材料内的传递规律,通过将纬编双轴向(MBWK)多层衬纱织物、机织物与陶瓷层交替铺层与不饱和聚酯树脂进行复合制备了复合材料,利用落锤冲击试验机对复合材料进行冲击测试,研究了试样冲击破坏后陶瓷片裂纹扩展及碎裂规律,探讨了冲击应力在不同结构复合材料内部的传播规律,并分析了MBWK织物增强复合材料的冲击应力波传播机制。结果表明:复合材料在冲击过程中,出现了材料的分层损伤;冲击应力波横波表现在陶瓷材料表面,即造成陶瓷材料环形损伤;冲击应力波纵波沿材料厚度方向传播,复合材料各层对能量的吸收有差别;同时,相同工艺条件下,机织物复合材料破坏面积小、裂纹数量少,说明机织物复合材料对冲击能量吸收较多、抗冲击性能较好。

关键词: 复合材料, 纬编双轴向织物, 陶瓷薄片, 冲击表征, 裂纹扩展

Abstract:

In order to characterize the propagation of shock waves in composite materials, a composite was prepared by compounding the weft-knitted biaxial (MBWK) multi-layer lining fabric, woven fabric and a ceramic layer alternately with unsaturated polyester resin. The hammer impact test was carried out on the composite material specimens, and the crack propagation and fragmentation of the ceramic sheets were studied after the specimen was impact damaged. The propagation of impact stress in the composite materials was explored with different structures, revealing the stress wave propagation mechanism of the MBWK fabric reinforced composites upon impact loading. The experimental results show that during the impact of the composite materials, delamination of the materials occurs. The existence of the transverse stress wave is manifested on the surface of the ceramic material, which causes ring damage to the ceramic layer, and the longitudinal wave propagates along the thickness of the material, and the layers of the composite material, causing different mechanisms of energy absorption for each layer. At the same time, under the same process conditions, the damage area and crack number of woven composite are small, which indicates that the woven composite has more impact energy absorption and better impact resistance.

Key words: composite material, weft-knitted biaxial fabric, ceramic sheet, impact characterization, crack propagation

中图分类号: 

  • TB332

图1

陶瓷增强MBWK织物复合材料示意图"

表1

陶瓷增强MBWK织物复合材料板成分含量"

材料板编号 织物质量分数 陶瓷质量分数 树脂质量分数
1* 25.39 52.06 22.55
2* 26.07 53.45 20.48
3* 24.61 50.45 24.94
4* 24.90 51.05 24.05
5* 24.94 51.13 23.93

图2

陶瓷增强机织物复合材料示意图"

表2

陶瓷增强机织物复合材料板成分含量"

材料板编号 织物质量分数 陶瓷质量分数 树脂质量分数
1# 23.57 60.49 15.94
2# 25.02 64.23 10.75

表3

实验参数设置"

试样类型 预设冲击
能量/J		 锤体质
量/kg		 冲击高
度/mm
陶瓷增强MBWK织物复合材料 18 2.0 918.7
陶瓷增强机织物复合材料 12 3.5 347.6

图3

陶瓷增强MBWK织物复合材料与陶瓷增强机织物复合材料冲击后整体破坏形貌"

图4

复合材料拆解及表征"

图5

冲击波在陶瓷增强MBWK复合材料内的传播表征"

图6

冲击波在陶瓷增强机织物复合材料内的传播表征"

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