ls dyna DRAFT_Theory.pdf

节选段落一：
LS-DYNA Theory Manual History of LS-DYNA
LS-DYNA Draft 2-1 (History of LS-DYNA)
2
History of LS-DYNA
The origin of LS-DYNA dates back to the public domain software, DYNA3D,
which was developed in the mid-seventies at the Lawrence Livermore National
Laboratory.


节选段落二：
History of LS-DYNA LS-DYNA Theory Manual
2-2 (History of LS-DYNA) LS-DYNA Draft
The next version, released in 1979, achieved the aforementioned goals. On the
CRAY the vectorized speed was 50 times faster, 0.67 minutes per million mesh cycles.


节选段落三：
LS-DYNA Theory Manual History of LS-DYNA
LS-DYNA Draft 2-11 (History of LS-DYNA)
• 2D automatic contact is defined by listing part ID's.
• 2D r-adaptivity for plane strain and axisymmetric forging simulations is
available.
• 2D automatic non-interactive rezoning as in LS-DYNA2D.
• 2D plane strain and