含能材料2024，Vol.32Issue(9)：930-941,12.DOI:10.11943/CJEM2024177
小当量近场爆炸冲击下CFRP层合板失效机理及吸能特性
Failure Mechanism and Energy Absorption Characteristic of CFRP Laminates under Small-quantity and Near-field Blast Loading
解江 1李漩 2潘汉源 2王立轩 3冯振宇1
作者信息
- 1. 中国民航大学科技创新研究院,天津 300300
- 2. 中国民航大学安全科学与工程学院,天津 300300
- 3. 上海飞机设计研究院,上海 201210
- 折叠
摘要
Abstract
To study the failure mechanism and energy absorption of carbon fiber reinforced polymer(CFRP)composites subject-ed to small-quantity and near-field blast loading,free-field blast tests and scanning electron microscope(SEM)tests were carried out on CFRP laminates.Meanwhile,a damage model was established based on the 3D Hashin failure criterion,and the dynamic response of CFRP laminates under near-field blast loading were simulated.Combined with the test results,the failure mechanism and energy absorption of CFRP laminates were analyzed.Results show that there are differences in the failure modes between the facing and back blast surfaces of CFRP laminates.The matrix cracking,fiber fracture or center perforation mainly appear on the facing blast surface,and the delamination occurs at the fiber-matrix interface.The large-area delamination failure and the frag-ment dispersion of the back blast surface are mainly due to the influence of the reflected tension wave,and the delamination of appears inside the matrix.During the response process of laminates,the high stress area is concentrated on the boundary of the center perforation and distributed along the fiber direction,and the stress levels of 0° ply and 90° ply are larger than that of±45° ply.Compared with the facing blast surface of laminates,the layers of the back blast surface absorb and transform large energy,accounting for 52%-56%of the total energy absorption.关键词
CFRP层合板/近场爆炸/仿真计算/失效机理/吸能特性Key words
CFRP laminates/near-field blast loading/numerical simulation/failure mechanism/energy absorption characteristic分类
军事科技引用本文复制引用
解江,李漩,潘汉源,王立轩,冯振宇..小当量近场爆炸冲击下CFRP层合板失效机理及吸能特性[J].含能材料,2024,32(9):930-941,12.
