getBasicIncrDisp vs. getBasicIncrDeltaDisp

Forum for OpenSees users to post questions, comments, etc. on the use of the OpenSees interpreter, OpenSees.exe

Moderators: silvia, selimgunay, Moderators

Post Reply
cenk tort
Posts: 21
Joined: Mon Aug 16, 2004 11:30 am
Location: miteng
Contact:

getBasicIncrDisp vs. getBasicIncrDeltaDisp

Post by cenk tort » Sun Oct 03, 2004 4:26 pm

Hello ,

I am not sure about the difference between the functions "getBasicIncrDisp" and "getBasicIncrDeltaDisp" at the element interface. I am assuming that "getBasicIncrDisp" is for incremental displacements at the natural coordinate system and "getBasicIncrDeltaDisp" is for the iterative displacements at the natural coordinate system. Does anybody have a comment on this ?

Thanks.
Cenk Tort
Department of Civil Engineering
University of Minnesota

fmk
Site Admin
Posts: 5883
Joined: Fri Jun 11, 2004 2:33 pm
Location: UC Berkeley
Contact:

Post by fmk » Mon Oct 04, 2004 10:25 am

There are no such methods in the Element interface itself, you must be looking at a particular subclass. The corresponding methods at the Node interface and their description, which i suspect are similar, are as follows:

the getIncrDisp() returns the difference between the current trial displaments and the last committed displacement. The getIncrDeltaDisp() returns the difference between the current trial displacement and the last trial displacement.

Post Reply