Mechanism Elucidation of High-Pressure Generation in Cellular Metal at High-Velocity Impact

Metals

Akihisa Mori¹  Masatoshi Nishi²  Matej Vesenjak³  Zoran Ren³  Shigeru Tanaka⁴  Kazuyuki Hokamoto⁴ 

[1] Department of Mechanical Engineering, Sojo University, Kumamoto 860-0082, Japan;Department of Mechanical and Intelligent Systems Engineering, National Institute of Technology (KOSEN), Kumamoto College, Kumamoto 866-8501, Japan;Faculty of Mechanical Engineering, University of Maribor, 2000 Maribor, Slovenia;Institute of Industrial Nanomaterials, Kumamoto University, Kumamoto 860-8555, Japan;

关键词: cellular metal;    high-pressure;    high-velocity impact;    computational simulation;    metal jet;   

DOI  :  10.3390/met12010128

来源: DOAJ

【 摘 要 】

Cellular metals exhibit diverse properties, depending on their geometries and base materials. This study investigated the mechanism of high-pressure generation during the high-velocity impact of unidirectional cellular (UniPore) materials. Cubic UniPore copper samples were mounted on a projectile and subjected to impact loading using a powder gun to induce direct impact of samples. The specimens exhibited a unique phenomenon of high-pressure generation near the pores during compression. We elucidate the mechanism of the high-pressure phenomenon and discuss the pore geometries that contribute to the generation of high pressures.

【 授权许可】

Unknown