Cosmos uses what iterative scheme for large displacement in static studies?

Discussion created by Jason Reznik on Mar 22, 2009
Latest reply on Mar 23, 2009 by Bill McEachern

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Cosmos uses what iterative scheme for large displacement in static studies?
Nonlinear studies let you choose between NR and MNR. What is the default method used in a static study when the large displacement option is selected?

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Steven Dinsdale Mar 23, 2009 8:00 PM
I don't know how it works with nonlinear Cosmos, but for a linear static study with large displacement activated the loads are applied gradually in steps up to their full values. The number of steps is chosen by Cosmos based on the full load applied at once displacement results.

Edit:

The standard version of Cosmos cannot perform nonlinear studies.
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Bill McEachern Mar 23, 2009 8:02 PM
as far as I am aware it is a force controlled autostepping solution using the Newton Raphson method.
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Cosmos uses what iterative scheme for large displacement in static studies?

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