The OpenSees Community

is there any one who knows what can be difference between these two different types of algorithms?:
1) algorithm Newton -initial
2)algorithm ModifiedNewton -initial

Are they the same?

Dear everyone I am trying to model a partial restraint composite connections, using available experimental M-theta relations of such connections. The implementation of zero length rotational spring elements for my purpose sounds effective so that I defined my springs as PINCHING4 materials. Unfortun...

One of the best ways for realizing the development of hinges is to keep tracking the stiffness of our fiber section. I am doing so but I can not get any result not even zeros. is there anybody who has already done that? for instance I am writing this kind of recorder: recorder Element -file $Data/St...