ID131:Dynamic Mechanical Behavior and the Damage Analysis of CFRP Under the Blast Shock

• 作 者: Yi Li Baoqiao Guo Pengwan Chen Wenbin Liu
• 机 构: State Key Laboratory of Explosion Science and Technology,Beijing Institute of Technology,Beijing 100
• 出 处: 第五届爆炸、冲击波和高应变率现象国际研讨会(International Workshop on Explosion, S
• 发表日期: 2016年3期
• 关键词: carbon fiber reinforced polymer blast shock dynamic damage

　　To study the dynamic mechanical response of carbon fiber reinforced polymer(CFRP)under air blast loading,the explosion shock tests of two ply stacking sequence,[0/90/90/0]2s and [45/-45/90/0]2s,of CFRP are performed by 3D-DIC system and small scale explosion vessel.The detonator is parallel or perpendicular to the back-surface of the sample.The explosion shock resistance of the two kinds of laminates is compared,and the failure mode and damage process of the laminates during the explosion shock are discussed.Simultaneously,the vibration response of the laminates is analyzed.The experimental results indicate that a)when the detonator is perpendicular to the sample,the explosion shock wave loads the specimen directly,and the specimen is cut along the flange,meanwhile,the failure mode of the edge is shear fracture and fiber debonding; b)when the detonator is parallel to the sample,the decompression of the vessel is caused by the holes formed by the fragments of the detonator.And large scale of plastic deformation of the sample occurs rather than cut along the flange.And the non-deformability of sample,[45/-45/90/0]2s,is superior to [0/90/90/0]2s under explosion shock loading conditions.