PENOB: a modification of the PENAP code to treat oblique impact of earth penetrators. [In extended FORTRAN (FLECS) for CDC 6600]

Technical Report · Thu Jan 31 23:00:00 EST 1980

OSTI ID:5362841

Yarrington, P; Norwood, F R; Ruiz, N K

As a direct extension of the work on normal penetration, effort was directed to develop analytical techniques for treating oblique impact (nonzero angle of attack and impact angle). The PENOB code was developed for this purpose from the equations of the PENAP axisymmetric earth penetration program. To treat oblique impact problems, the boundary conditions on the penetrator-soil interface are allowed to vary around the penetrator circumference. In general, peak lateral loads predicted by PENOB were fond to be larger (by factors of 1.5 to 2.0) than those obtained by earlier approximate methods. 8 figures, 5 tables.

• Research Organization: USAEC Division of Materials and Licensing, Washington, DC
• DOE Contract Number: AC04-76DP00789
• OSTI ID: 5362841
• Report Number(s): SAND-78-1154
• Country of Publication: United States
• Language: English

Related Subjects

657002* -- Theoretical & Mathematical Physics-- Classical & Quantum Mechanics
71 CLASSICAL AND QUANTUM MECHANICS
GENERAL PHYSICS
CDC COMPUTERS
COMPUTER CODES
COMPUTERS
DYNAMIC LOADS
EARTH PENETRATORS
IGNEOUS ROCKS
MATHEMATICAL MODELS
ON-LINE SYSTEMS
P CODES
PENETRATORS
ROCKS
SURFACES
TRAJECTORIES
TUFF
VOLCANIC ROCKS