Research on the critical impact velocity of droplets impacting metal grid and breaking into sub-droplets

2021 ◽  
Author(s):  
Zhenyu Yang ◽  
Zhen Li ◽  
Xin Ai ◽  
Xufeng Xu ◽  
Nengchao Li ◽  
...  
Keyword(s):  
Impact Velocity ◽  
Metal Grid ◽  
Critical Impact Velocity

Foreign Object Damage in Gas-Turbine Grade Silicon Nitrides by Silicon Nitride Ball Projectiles

2009 ◽  
Author(s):  
Sung R. Choi
Keyword(s):  
Silicon Nitride ◽  
Gas Turbine ◽  
Impact Velocity ◽  
Impact Damage ◽  
Hertzian Contact ◽  
Foreign Object ◽  
Silicon Nitrides ◽  
Foreign Object Damage ◽  
Critical Impact Velocity ◽  
Grade Silicon

Foreign object damage (FOD) behavior of two gas-turbine grade silicon nitrides (AS800 and SN282) was determined with a considerable sample size at ambient temperature using impact velocities ranging from 50 to 225 m/s by 1.59-mm diameter silicon nitride ball projectiles. The degree of impact damage as well as of post-impact strength degradation increased with increasing impact velocity, and was greater in SN282 than in AS800 silicon nitride. The critical impact velocity in which target specimens fractured catastrophically was remarkably low: about 200 and 130 m/s, respectively, for AS800 and SN282. The difference in the critical impact velocity and impact damage between the two target silicon nitrides was attributed to the fracture toughness of the target materials. The FOD by silicon nitride projectiles was significantly greater than that by steel ball projectiles. Prediction of impact force was made based on a yield model and compared with the conventional Hertzian contact-stress model.

The critical impact velocity of light flash created by strong shock natural dolomite plate

2014 ◽  
Vol 44 (1) ◽  
pp. 33-39 ◽  
Author(s):  
Enling Tang ◽  
Hongjie Xu ◽  
Meng Wang ◽  
Qingming Zhang ◽  
Zhiqiu Li ◽  
...  
Keyword(s):  
Impact Velocity ◽  
Light Flash ◽  
Strong Shock ◽  
Velocity Of Light ◽  
Critical Impact Velocity

Critical Impact Velocity in the Solid Particles Impact Erosion of Metallic Materials

1998 ◽  
Vol 47 (8) ◽  
pp. 540-547 ◽  
Author(s):  
Akihiro Yabuki ◽  
Kazuo Matsuwaki ◽  
Masanobu Matsumura
Keyword(s):  
Impact Velocity ◽  
Solid Particles ◽  
Metallic Materials ◽  
Critical Impact Velocity ◽  
Impact Erosion

Measurement of Critical Impact Velocity of Copper in Tension

2008 ◽  
Vol 25 (3) ◽  
pp. 1049-1051 ◽  
Author(s):  
Hu Jin-Wei ◽  
Jin Yang-Hui ◽  
Chen Da-Nian ◽  
Wu Shan-Xing ◽  
Wang Huan-Ran ◽  
...  
Keyword(s):  
Impact Velocity ◽  
Critical Impact Velocity

scholarly journals Application of Critical Impact Velocity. High-Speed Blanking.

1995 ◽  
Vol 61 (586) ◽  
pp. 1344-1348
Author(s):  
Shinji Tanimura ◽  
Hu Wang ◽  
Hiroaki Morita ◽  
Koichi Kaizu ◽  
Masahiro Yamasaki ◽  
...  
Keyword(s):  
Impact Velocity ◽  
High Speed ◽  
Critical Impact Velocity

scholarly journals Theoretical Equation of the Critical Impact Velocity in Solid Particles Impact Erosion

1998 ◽  
Vol 47 (10) ◽  
pp. 631-637
Author(s):  
Akihiro Yabuki ◽  
Kazuo Matsuwaki ◽  
Masanobu Matsumura
Keyword(s):  
Impact Velocity ◽  
Solid Particles ◽  
Theoretical Equation ◽  
Critical Impact Velocity ◽  
Impact Erosion
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