Oasys LS-DYNA Environment 8.1 VOLUME 3 ... - Oasys Software

Oasys LS-DYNA Environment: User Guide (Version 8.1)
LS-DYNA Manual Section: *CONTACT_ERODING_SURFACE_TO_SURFACE
Example of: Projectile penetrates Plate
Example Filename: projectile_plate.key
Description:
A projectile strikes a plate at a critical angle.
Model:
The hemispherical projectile has a length of 7.67 cm and a diameter of 0.767 cm. The plate
measures 23.01 cm × 23 cm × 0.64 cm. The projectile and the plate are elastic perfectly plastic with
failure strain. The initial velocity of the projectile is 0.129 cm/µsec at an angle of 75 degrees. The
calculation terminates at 110.0 µsec.
Input:
All nodes have initial velocity cards (*INITIAL_VELOCITY)
A type 14 eroding surface to surface with the bucket sorting algorithm contact represents the
interface between the projectile material and the plate material
(*CONTACT_ERODING_SURFACE_TO_SURFACE).
Results:
The projectile fractures into a tip and trailing portion. The trailing portion punches a hole through
the plate while the tip reflects off the plate.
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