织物增强柔性复合材料的缺口敏感性

纺织学报 ›› 2012, Vol. 33 ›› Issue (1): 54-59.

织物增强柔性复合材料的缺口敏感性

汪泽幸¹,蒋金华²,陈南梁²

1. 东华大学纺织学院 2. 产业用纺织品教育部工程研究中心

收稿日期:2010-08-31 修回日期:2011-09-19 出版日期:2012-01-15 发布日期:2012-01-10
通讯作者: 陈南梁 E-mail:nlch@dhu.edu.cn
基金资助:
市级

On notch sensitivity of textile reinforced flexible composites

Received:2010-08-31 Revised:2011-09-19 Online:2012-01-15 Published:2012-01-10

摘要/Abstract

摘要： 为了解织物增强柔性复合材料在不同形式切口下的单向拉伸力学性能，从而更好地设计和应用织物增强柔性复合材料，本文对不同切口深度下单边、双边及中心切口拉伸试样的拉伸力学性能进行了测试与分析。实验结果表明：织物增强柔性复合材料具有强烈的缺口敏感性，相对于中心切口，织物增强柔性复合材料对单边切口较为敏感，而对双边切口的敏感性较低。同时，本文对三种切口拉伸试样的切口扩展过程、破坏过程进行了分析，对缺口扩展临界载荷的确定方法进行了探讨。同时，对三种切口拉伸试样的缺口敏感性及断裂韧性进行分析研究。

Abstract: To evaluate the effects of notch type and notch depth on the tensile properties for textile reinforced flexible composites and to better design and application textile reinforced flexible composites, the uniaxial tensile tests on SENT, DENT and CENT specimens with various notch depths were conducted. The experimental results show that the textile reinforced flexible composite exhibits significantly notch sensitivity. Compared with CENT specimens, the SENT specimens exhibit higher notch sensitivity, and lower for DENT specimens. In this paper, the propagation of notch and the criterion of notch propagation threshold force were also discussed. For these three kinds of notch types, the notch sensitivity and notch toughness were also studied.

中图分类号:

TB332

汪泽幸, 蒋金华, 陈南梁. 织物增强柔性复合材料的缺口敏感性[J]. 纺织学报, 2012, 33(1): 54-59.

WANG Ze-Xing, JIANG Jin-Hua, CHEN 南Liang. On notch sensitivity of textile reinforced flexible composites[J]. JOURNAL OF TEXTILE RESEARCH, 2012, 33(1): 54-59.

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