Skip to content
Marc & Structures
Index

Course account

Save your progress

Enter your email and we will send a secure sign-in link. There is no password and the first link creates your account.

Mental model ~5 min · ~67 min remaining

Linear vs. nonlinear

NLGEOM updates stiffness; TB,BISO enables yielding; TIME is a static load factor.

Mental model — Linear versus nonlinear

Linear, geometrically nonlinear, and elastoplastic curves
Figure 1. Three branches on the same geometry: linear, elastic NLGEOM, and elastoplastic.
  • Geometric: NLGEOM,ON updates stiffness with the deformed configuration.
  • Material: TB,BISO allows yielding beyond Sy.
  • Numerical: substeps + iterations; convergence ≠ automatic physical validity.
  • TIME: load factor in static analysis; do not confuse it with M14 transient time.
Quick check

In a ramped static analysis, what does TIME=0.5 represent?

View complete module Download m10-kit.zip