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Amy Heilig, PE
2022-09-12

Load Increments and Nonlinear Materials

Is it possible to set load increments, save the results of each step, and view at which load increment the material is yielding?

Answer:

To activate the nonlinear material behavior in RFEM 6 or RSTAB 9, the Nonlinear Material Behavior add-on must be activated.

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FAQ 005310 | Is it possible to set load increments, save each step results, and view at which loa...
FAQ 005310 | Is it possible to set load increments, save each step results, and view at which load increment the material is yielding?
Nonlinear Material Behavior Add-on Activation

The material model should then be modified from the default setting "Linear Elastic" to the relevant "Plastic" setting in the Material dialog box, depending on whether the element is a 1D member, 2D surface, or 3D solid.

FAQ 005310 | Is it possible to set load increments, save each step results, and view at which load increment the material is yielding?
Material Modification of Plastic Material Model

Lastly, the Static Analysis Settings should further be modified to set the number of load increments and to activate the "Save results of all load increments" checkbox.

FAQ 005310 | Is it possible to set load increments, save each step results, and view at which load increment the material is yielding?
Load Increment Settings and Saved Results Activation

After the calculation, all results can be viewed in the Navigator - Results panel according to the selected load increment.

Author

Amy Heilig is the CEO of the USA Subsidiary Office in Philadelphia, PA. She is responsible for sales, technical support, and continued program development for the North American market.

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