Damage Characteristic of Interpenetrating Phase Composites under Dynamic Loading

• Published in: Journal of Wuhan University of Technology. Materials science edition 2014-08, Vol.29 (4), p.698-703
• Main Authors: Wang, Fuchi, Zhang, Xu, Wang, Yangwei, Wang, Lu, Ma, Zhuang, Fan, Qunbo
• Format: Article
• Language: English
• Subjects: Advanced Materials; Ceramics; Chemistry and Materials Science; Damage; Deformation; Dynamics; Failure; Interprocessor communication; IPC; Loads (forces); Materials Science; Silicon carbide; 冲击损伤; 分离式Hopkinson压杆; 动态负载; 变形控制技术; 复合材料; 特性; 陶瓷金属
• ISSN: 1000-2413; 1993-0437
• DOI: 10.1007/s11595-014-0983-7

In order to investigate the damage characteristic of ceramic-metal interpenetrating phase composite（IPC） under dynamic loading, uniaxial dynamic compression was performed to characterize the failure of SiC/Al composite with 15% porosity using a modifi ed Split Hopkinson Pressure Bar（SHPB）. High speed photography was used to capture the failure procedure and set up the relationship between deformation and real stress. The deformation control technology was used to obtain collected samples in different deformations under dynamic loading. Micro CT technology was utilized to acquire real damage distribution of these specimens. Moreover, SEM was employed in comparing the damage characteristics in IPC. A summary of the available experimental results showed that IPC without lateral confi nement formed double cones. The different features compared with ceramic materials without restraint was shown to be the result of the lateral restraint effect provided by metal phase to ceramics skeleton.