Penetration into dry porous rock: A numerical study on sliding friction simulation
Penetration of Antelope tuff targets by steel penetrators is the subject of discussion in the present investigation. Specifically, the effect of sliding friction between projectile and target on penetration is examined. The finite element code PRONTO 2D is used to perform a parametric study of the coefficient of friction. Both constant and velocity dependent coefficient of friction representation have been included in the current investigation. Results indicate that increases in the coefficient of friction increase the penetration resistance although the relationship is nonlinear in nature. In terms of peak deceleration and depth of penetration, both the constant and velocity dependent coefficient of friction representation provide almost identical results. However, only the velocity dependent cases show the characteristic of increasing deceleration prior to the conclusion of the penetration event. For this reason, the velocity dependent representation of the coefficient of friction is preferred over the constant friction coefficient representation. 8 refs., 13 figs., 1 tab.
- Research Organization:
- Sandia National Labs., Albuquerque, NM (USA)
- DOE Contract Number:
- AC04-76DP00789
- OSTI ID:
- 6710755
- Report Number(s):
- SAND-88-2485; ON: DE89002994
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
99 GENERAL AND MISCELLANEOUS
COMPUTER CODES
COMPUTERIZED SIMULATION
DATA
ENERGY SYSTEMS
FINITE ELEMENT METHOD
FRICTION
GEOTHERMAL SYSTEMS
Geothermal Legacy
HOT-DRY-ROCK SYSTEMS
INFORMATION
NUMERICAL DATA
NUMERICAL SOLUTION
P CODES
PENETRATION DEPTH
PENETRATORS
SIMULATION
SLIDING FRICTION
SPECIFICATIONS