Answer:
In order to consider nonlinearities in dynamics, the RF‑/DYNAM Pro – Nonlinear Time History add-on module is required in RFEM 5 or RSTAB 8.
This module is different in RFEM 5 and RSTAB 8, depending on the type of nonlinearities to be applied.
RSTAB 8 – Nonlinear Time History Analysis
- Nonlinear member types, such as tension and compression members, as well as cables
- Member nonlinearities, such as failure, tearing, and yielding under tension or compression
- Support nonlinearities, such as failure, friction, diagram, and partial activity
- Hinge nonlinearities, such as friction, partial activity, diagram, and fixed if positive or negative internal forces
- === RFEM 5 – Nonlinear Time History Analysis ===
In addition to the nonlinearities mentioned above, it is also possible to use nonlinear material behavior.