Timeline for Is "tangent stiffness matrix" the same as "stiffness matrix"?

12 events

when toggle format	what		by	license	comment
May 5, 2015 at 10:05	history	tweeted			twitter.com/#!/StackSciComp/status/595529642766954497
Apr 28, 2015 at 16:42	vote	accept	damian
Apr 25, 2015 at 15:16	comment	added	Bill Greene		I think your idea of specifying displacements at selected nodes is a good one. I'll update my response to include some discussion of this.
Apr 25, 2015 at 14:38	history	edited	damian	CC BY-SA 3.0	added 256 characters in body
Apr 25, 2015 at 14:29	history	edited	damian	CC BY-SA 3.0	clarified linear vs nonlinear, purpose, and what 'not working as expected' means.
Apr 25, 2015 at 13:04	answer	added	Bill Greene		timeline score: 7
Apr 25, 2015 at 12:50	answer	added	Christian Clason		timeline score: 3
Apr 25, 2015 at 12:49	history	edited	Christian Clason		edited tags
Apr 25, 2015 at 12:41	comment	added	DanielRch		The tangent stiffness matrix is the stiffness matrix used in each iteration of the solution of a nonlinear problem. It changes with each iteration. Is your problem nonlinear? If the problem is linear it would typically converge in a single itteration, and in that case the tangent stiffness matrix is simply the stiffness matrix.
Apr 25, 2015 at 12:00	comment	added	Christian Clason		Could you be a bit more specific as to how it's not working as expected (i.e., what did you expect, and what do you observe)? Otherwise it's difficult to help.
Apr 25, 2015 at 7:27	review	First posts
Apr 25, 2015 at 12:47
Apr 25, 2015 at 7:26	history	asked	damian	CC BY-SA 3.0