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July 30, 2025 at 1:45 pm
l.su-1
SubscriberHi all,
When modeling soil layers as an elastic material in LS-DYNA, I would like to define the stiffness (e.g., Young’s modulus) as a function of depth — specifically, the z-coordinate in my model.
I noticed that the *MAT_ELASTIC card supports defining stiffness as a function of an elemental variable using
EFUNC
. The manual gives an example usingEFUNC=P
to define stiffness as a function of pressure.However, in my case, I would like to define stiffness as a function of the z-coordinate. After searching the manual, I suspect the correct keyword may be
"CZ"
, but this is based on hints from other keyword descriptions and I’m not completely certain.Could anyone confirm whether
"CZ"
is indeed the correct variable to use for referencing the z-coordinate inEFUNC
? Any clarification would be greatly appreciated.
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