球形弹体冲击下三维正交机织物结构破坏机制有限元分析

doi:10.13475/j.fzxb.20190803007

纺织学报 ›› 2020, Vol. 41 ›› Issue (08): 32-38.doi: 10.13475/j.fzxb.20190803007

球形弹体冲击下三维正交机织物结构破坏机制有限元分析

武鲜艳¹^,²^,³, 申屠宝卿¹(), 马倩⁴, 金利民⁵, 张威⁶, 谢胜²

1.浙江大学化学工程与生物工程学院, 浙江杭州 310027
2.嘉兴学院材料与纺织工程学院, 浙江嘉兴 314001
3.浙江双箭橡胶股份有限公司, 浙江嘉兴 314513
4.盐城工业职业技术学院纺织服装学院,江苏盐城 224005
5.中国科学院上海高等研究院, 上海 201204
6.东华大学纺织学院, 上海 201620

收稿日期:2019-08-12 修回日期:2020-04-28 出版日期:2020-08-15 发布日期:2020-08-21
通讯作者: 申屠宝卿
作者简介:武鲜艳(1989—),女,讲师,博士。主要研究方向为纺织复合材料力学。
基金资助:
国家自然科学基金项目(51805210);国家自然科学基金项目(11702113);中国博士后科学基金项目(2019M652075);浙江省纱线材料成形与复合加工技术研究重点实验室开放基金项目(MTC2019-11);嘉兴市科技计划项目(2019AD32005)

Finite element analysis on structural failure mechanism ofthree-dimensional orthogonal woven fabrics subjected to impact of spherical projectile

WU Xianyan¹^,²^,³, SHENTU Baoqing¹(), MA Qian⁴, JIN Limin⁵, ZHANG Wei⁶, XIE Sheng²

1. College of Chemical and Biological Engineering, Zhejiang University, Hangzhou, Zhejiang 310027, China
2. College of Material and Textile Engineering, Jiaxing University, Jiaxing, Zhejiang 314001, China
3. Zhejiang Double Arrow Rubber Co., Ltd., Jiaxing, Zhejiang 314513, China
4. College of Textile and Clothing, Yancheng Vocational Institute of Industry Technology, Yancheng, Jiangsu 224005, China
5. Shanghai Advanced Research Institute, Chinese Academy of Sciences, Shanghai201204, China
6. College of Textiles, Donghua University, Shanghai 201620, China

Received:2019-08-12 Revised:2020-04-28 Online:2020-08-15 Published:2020-08-21
Contact: SHENTU Baoqing

摘要/Abstract

摘要：

为深入研究抗冲击三维正交机织物的破坏机制,通过有限元建模分析,以三维正交机织物为靶体,在纱线尺度细观结构模型上计算其在不同初始速度球形弹体冲击下的渐进破坏过程。对不同初始速度下球形弹体的速度和加速度变化历程、各纱线系统吸能比例、材料渐进破坏过程以及最终破坏形态等进行分析。结果表明:平直排列的纱线系统在吸收与耗散球形弹体冲击能量的过程中发挥重要作用,可使能量以很快的应力波速扩展到三维正交机织物靶体的大面积区域,并提高吸能效果;球形弹体初始速度为100 m/s时,经、纬、Z纱系统可分别吸收总能量的39.6%、48.37%、12.03%,经、纬纱系统为三维正交机织物靶体抵抗冲击力过程中的主要承力部位;通过增加纱线层数、织物体积及织造密度等可提高三维正交机织物材料的抗冲击性能。

关键词: 三维正交机织物, 球形弹体, 破坏机制, 有限元分析

Abstract:

To study the structural failure mechanism of the three-dimensional (3-D) orthogonal woven fabric subjected to the impact loading, the progressive failure process of the 3-D orthogonal woven fabric target under different initial striking velocities was calculated via finite element analysis. By comparatively analyzing the evolution procedures of projectile velocities and accelerations, the energy absorption ratios of the yarn systems, the progressive failure process and the ultimate failure modes for various initial striking velocities, it is found that the linearly aligned yarn systems play a pretty important role in the process of absorbing and dissipating the impact energy of the spherical projectile. The energy can be propagated to a large area of the 3-D orthogonal woven fabric target with a high stress wave velocity and thus the energy absorption effect is improved. Besides, the warp, weft, and Z yarn systems absorb 39.6%, 48.37% and 12.03% of the total energy at the initial striking velocity 100 m/s, respectively. The warp and weft yarn systems are the primary load-bearing parts during the impact resisting process for the 3-D orthogonal woven fabric target. The impact resistance performance of 3-D orthogonal woven fabric structural material can be improved by increasing the number of layers, volume and weaving density of the fabric.

Key words: three-dimensional orthogonal woven fabric, spherical projectile, failure mechanism, finite element analysis

中图分类号:

TS101.2

武鲜艳, 申屠宝卿, 马倩, 金利民, 张威, 谢胜. 球形弹体冲击下三维正交机织物结构破坏机制有限元分析[J]. 纺织学报, 2020, 41(08): 32-38.

WU Xianyan, SHENTU Baoqing, MA Qian, JIN Limin, ZHANG Wei, XIE Sheng. Finite element analysis on structural failure mechanism ofthree-dimensional orthogonal woven fabrics subjected to impact of spherical projectile[J]. Journal of Textile Research, 2020, 41(08): 32-38.

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参考文献 19

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类别	密度/ (g·cm^-3)	弹性模量/GPa	泊松比	强力/ GPa	断裂伸长率/%
经/纬/Z纱	2.50	70.00	0.20	2.30	2.2
球形弹体	7.80	200.00	0.30	—	—

类别	层数	数目	体积/mm³	质量/g
经纱	5	55(全)+10(半)	2 665.9	6.66
纬纱	6	72	3 199.1	8.00
Z纱	1	12	971.8	2.43
球形弹体	—	1	523.3	4.08

v_s/(m·s^-1)	v_r/(m·s^-1)	E₀/J	E_A/J	η/%
200	154.5	81.6	32.9	40.3
150	92.8	45.9	28.3	61.7
100	0→反弹	20.4	20.4^*	100.0^*

球形弹体冲击下三维正交机织物结构破坏机制有限元分析

Finite element analysis on structural failure mechanism ofthree-dimensional orthogonal woven fabrics subjected to impact of spherical projectile

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