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

Oasys LS-DYNA Environment: User Guide (Version 8.1)
LS-DYNA Manual Section: *RIGIDWALL_GEOMETRIC_SPHERE_MOTION
Example of: Geometric spherical rigidwall impacts a plate.
Example Filename: sphere_rigidwall.key
Description:
A “Stonewall” sphere impacts an elastic plate. (The stonewall will be shown in D3PLOT but will
not appear to move.)
Model:
The plate has an elastic material model with Belytschko-Tsay shell formulation. The plate is 40 ×
40 × 2 mm 3 . The sphere has a radius of 8 mm and its center is 9 mm above the plate. The sphere
moves towards the plate with a prescribed velocity of 3 mm/second. Termination time is set to
0.0005 seconds.
Input:
A spherical stonewall surface represents the true geometry of the ball.
(*RIGIDWALL_GEOMETRIC_SPHERE_MOTION). The stone wall cards contain direction and
load curve number (*DEFINE_LOAD). The box option defines the nodes that intercat with the
stonewall definition.
Reference:
Schweizerhof, K. and Weimer, K.
Page A.105