RF-/STEEL EC3 - Online Manual Version 5/8

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RF-/STEEL EC3 - Online Manual Version 5/8

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3.1.6 Plasticity


This tab allows for settings of the advanced plastic analysis for cross-sections. You can access the entries if the RF-/STEEL Plasticity add-on module is licensed.

Figure 3.10 Dialog box Details, tab Plasticity

In the cross-section design performed by the elastic-plastic design method, linear elastic material behavior is assumed for the calculation of the internal forces Sd, and linear elastic-perfectly plastic material behavior for the calculation of the resistances Rd. Thus, the cross-section's reserves are used but the possibly available plastic reserves of the system are not considered. When the limit internal forces are reached in the fully plastic state, the ultimate limit state is reached.

If you want RF-/STEEL EC3 to Perform advanced plastic design checks acc. to [1] and [2], select the check box (literature in manual: [10] and [11]). Then, the other dialog sections become accessible.

Find a detailed description of the plastic cross-section designs in the manual for RF-/STEEL Plastic on our website.

[10] Kindmann, R.; Frickel, J.: Elastische und plastische Querschnittstragfähigkeit. Berlin: Ernst & Sohn, 2002
[11] F. Nowzartash and M. Mohareb. Plastic interaction relations for elliptical hollow sections. Thin-Walled Structures, 47, 2009.

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