The Effect Of Segment Length And Gap Distance
On Segmented Rods Penetrating Into A
Steel Target
Author(s)
X. W. Chen, & L. Lang
Abstract
Numerical simulations are conducted on the penetration of an L/D=5 long-rod
and different ideal segment-rod into steel targets by ANSYS/LS-DYNA3D. The
Lagrangian method and Johnson-Cook constitutive model are coupled in
simulations. The comparative analysis indicates that the dominant contribution to
the depth of penetration (DOP) of a segment-rod is due to the phase III nonsteady
stage rather than the phase II quasi-steady penetration stage, which is
dominant in long rod penetration. The effect of segment length and the gap
distance on DOP are especially analyzed. The aspect ratio and gap distance of a
segment do not affect DOP monotonically increasing or decreasing, instead there
exists an optimal parameter region.
Keywords: numerical simulation, segmented rods, DOP, aspect ratio, gap
distance, Johnson-Cook model.
Keywords
numerical simulation, segmented rods, DOP, aspect ratio, gap
distance, Johnson-Cook model.
Related Book
Other papers in this volume
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