Spall fracture of beryllium under shockwave loading

2012 ◽  
Author(s):  
Viktor Skokov ◽  
Vladimir Arinin ◽  
Dmitry Kryuchkov ◽  
Vladimir Ogorodnikov ◽  
Viktor Raevsky ◽  
...  
Keyword(s):  
Spall Fracture ◽  
Shockwave Loading

Phenomenon of Spall Fracture during Tension

2020 ◽  
Vol 2020 (10) ◽  
pp. 1230-1234
Author(s):  
A. V. Grinevich ◽  
A. V. Slavin ◽  
N. O. Yakovlev ◽  
I. V. Gulina
Keyword(s):  
Spall Fracture

scholarly journals Experiment on Foreign Object Damage of Gas Turbine-Grade Silicon Nitride Ceramic

1998 ◽  
Author(s):  
Hiro Yoshida ◽  
Takashi Nakashima ◽  
Makoto Yoshida ◽  
Yasushi Hara ◽  
Toru Shimamori
Keyword(s):  
Elevated Temperature ◽  
Silicon Nitride ◽  
Elevated Temperatures ◽  
Tensile Load ◽  
Strength Degradation ◽  
Spall Fracture ◽  
Silicon Nitride Ceramic ◽  
Impact Tests ◽  
The Impact ◽  
Bending Fracture

A new high quality turbine system using monolithic silicon-nitride ceramic is under development. In this study particle impact tests of the silicon-nitride have been tried at room and elevated temperatures with and without tensile load, which simulates centrifugal force of blade rotation. In the experiment 1 mm diameter particle is impacted at velocities up to 900 m s−1. In this paper, critical velocities for bending fracture and Hertzian cracks are examined. Moreover, strength degradation at elevated temperature and spall fracture of the blade are discussed. The main results are: 1) The bending fracture mode critical impact velocity for soft particles is higher than that for hard particles. 2)The impact parameter ϕ for initiation of Hertzian cracks ranges 1.08×10−5 – 1.56×10−5 for the materials tested. 3)Strength degradation at elevated temperature was clearly observed. 4) In the impact tests on blades spall fracture, which was caused by interaction of stress waves, appeared.

SPALL FRACTURE AND DYNAMIC RESPONSE OF MATERIALS

1968 ◽  
Author(s):  
John H. Oscarson ◽  
Karl F. Graff
Keyword(s):  
Dynamic Response ◽  
Spall Fracture

scholarly journals Spall fracture of two high strength armor steels

2020 ◽  
Author(s):  
H. Wang ◽  
S. Higgs ◽  
A. Ameri ◽  
M. Gonzales ◽  
B. McDonald ◽  
...  
Keyword(s):  
High Strength ◽  
Spall Fracture

PHASE TRANSFORMATION AND SPALL FRACTURE IN LASER SHOCK-LOADED IRON

2008 ◽  
Author(s):  
T. de Rességuier ◽  
M. Hallouin ◽  
Mark Elert ◽  
Michael D. Furnish ◽  
Ricky Chau ◽  
...  
Keyword(s):  
Phase Transformation ◽  
Spall Fracture ◽  
Laser Shock
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