玻璃钢/复合材料Issue(8)：36-41,6.
复合材料层合板损伤区域扩展全过程分析
THE WHOLE PROCESS ANALYSIS OF DAMAGE AREA EXPANSION OF COMPOSITE LAMINATES
陈星杰 1周仕刚 1宫占锋 2罗腾腾 2薛元德1
作者信息
- 1. 同济大学航空航天与力学学院,上海 200092
- 2. 上海飞机设计研究院,上海200232
- 折叠
摘要
Abstract
Two groups of quasi-static indentation tests were carried out on carbon fiber NCF laminates.In the first group,the influence of different head diameter on the damage area was studied by using different indenter sizes.In the second group,the repeated test of fixed head size was carried out to study the relationship between the static indentation force,the dent depth and the damage area by using the non-contact air-coupled ultrasonic scanning sample.Based on the Hashin criterion and the cohesive element,the whole process damage propagation analysis of the second groups of laminates was carried out by using Abaqus software.The results indicate that the tensile failure of matrix is the most easily damaged,and the damage area covers the other 4 kinds of damage areas.There is a connection between dent depth and damage area.At the beginning of the test,the dent depth increases slowly,the damage area increases fast;close to the ultimate load,the dent depth increases fast,the damage area increases slowly.关键词
静压痕力/Hashin准则/内聚力单元/损伤扩展Key words
static indentation force/Hashin criterion/cohesive element/damage propagation分类
通用工业技术引用本文复制引用
陈星杰,周仕刚,宫占锋,罗腾腾,薛元德..复合材料层合板损伤区域扩展全过程分析[J].玻璃钢/复合材料,2017,(8):36-41,6.
