Visualization and quantification of low-velocity impact damage of three-dimensional braided CFRP composites by micro-computed tomography

被引：4

作者：

Sun, Mengyao ^{[1
]}

Zhang, Diantang ^{[1
]}

Qian, Kun ^{[1
]}

机构：

[1] Jiangnan Univ, Key Lab Ecotext, Minist Educ, Wuxi 214122, Peoples R China

来源：

HELIYON | 2022年 / 8卷 / 12期

关键词：

Low-velocity impact; Damage visualization; Damage quantification;

D O I：

10.1016/j.heliyon.2022.e12110

中图分类号：

O [数理科学和化学]; P [天文学、地球科学]; Q [生物科学]; N [自然科学总论];

学科分类号：

07 ; 0710 ; 09 ;

摘要：

In this paper, the low-velocity impact response and damage of three-dimensional five-directional (3D5d) braided carbon/epoxy composites under different energies (30 J, 65 J, 100 J) are studied. Importantly, the damage is segmented from the axial and radial directions of the yarn to visualize and quantify the damage distributions in different regions based on micro-CT. The results show that as compared with the samples under 30 J and 100 J, the samples under 65 J energy perform higher impact properties. Moreover, as the impact energy increases from 30 J to 100 J, the corresponding damage volume increases from 6.886 mm3 to 477.133 mm3. Furthermore, the damage distributions are almost symmetrical in space.

引用

页数：7

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