Obtaining ultimate load using Riks method
Obtaining ultimate load using Riks method
(OP)
Hello, everybody. I am using the Riks method in order to obtain the bending moment resistance of a beam. My material is aluminium, modeled as a continuous stress-strain curve (elastic and plastic properties). If i set a load value which is large enough, do i get a proportionality factor after the analysis, which i can use to multiply the load and to obtain the ultimate bending moment? If not, how can i, otherwise, go about this?





RE: Obtaining ultimate load using Riks method
While running (and afterwards of course), you can open the .odb and check "LPF" in history output.
LPF
Load proportionality factor in a static Riks analysis.
.dat: no .fil: automatic .odb Field: no .odb History: automatic
Cheers!
RE: Obtaining ultimate load using Riks method
RE: Obtaining ultimate load using Riks method
Are you applying the full (or maximum) load in the riks step? If so, the arc length should be smaller (like 0.01), right?