Search found 708 matches

by STKO Team
Fri Aug 27, 2021 3:12 pm
Forum: Mesh
Topic: Mesh Sensitivity for pile-soil interaction
Replies: 15
Views: 328

Re: Mesh Sensitivity for pile-soil interaction

Regarding your previous post, Try this: D6L20_FIN_DenseLat.zip I used integrator = TRBF2 and I changed the geometry adding a circle around the hole, so that you can increase the mesh size there, without using the bias mesh (which is causing mesh distortion). Try it and see if the response is any bet...
by STKO Team
Fri Aug 27, 2021 2:09 pm
Forum: Mesh
Topic: mesh type related error
Replies: 18
Views: 679

Re: mesh type related error

You are welcome!
by STKO Team
Thu Aug 26, 2021 7:50 am
Forum: Property
Topic: Problem with New Contact Element
Replies: 3
Views: 117

Re: Problem with New Contact Element

You are welcome!
by STKO Team
Wed Aug 25, 2021 9:52 am
Forum: Mesh
Topic: Mesh Sensitivity for pile-soil interaction
Replies: 15
Views: 328

Re: Mesh Sensitivity for pile-soil interaction

You are welcome, keep us posted!
by STKO Team
Tue Aug 24, 2021 9:01 am
Forum: Mesh
Topic: Mesh Sensitivity for pile-soil interaction
Replies: 15
Views: 328

Re: Mesh Sensitivity for pile-soil interaction

Dear Bence, You are right in saying that upon mesh refinement you should converge to a unique result. However, keep in mind that if you refine only the horizontal direction, your Hexa elements will increase their aspect ratio. Since you are using a biased mesh (finer near the circle) your elements c...
by STKO Team
Mon Aug 23, 2021 10:51 am
Forum: Condition
Topic: Applying Earthquake Motion to each node at model bottom separately
Replies: 1
Views: 125

Re: Applying Earthquake Motion to each node at model bottom separately

Dear user, I understand your purpose. Probably it's easier if you do it with a customCommand using TCL commands. However, it is not going to be easy. I would start creating a region in STKO with all the bottom edges. In this region you can tell STKO to write a TCL list, so that you can access the no...
by STKO Team
Mon Aug 23, 2021 10:44 am
Forum: Property
Topic: singleFPBearing element
Replies: 3
Views: 73

Re: singleFPBearing element

1) For the modal analysis that using linear analysis, what is the value of the isolator effective stiffness that STKO uses? Since the initial stiffness that we define in the element properties is not the effective stiffness. The eigen analysis in OpenSees uses the current stiffness of the material ...
by STKO Team
Mon Aug 23, 2021 10:34 am
Forum: Property
Topic: Problem with New Contact Element
Replies: 3
Views: 117

Re: Problem with New Contact Element

we fixed this issue in the new version (2.0.4).
In the meantime use this python file insted of your own in C:\Program Files\STKO\external_solvers\opensees\element_properties\zero_length_elements
zeroLengthImplexContact.zip
(1.98 KiB) Downloaded 6 times
by STKO Team
Mon Aug 23, 2021 10:20 am
Forum: Mesh
Topic: mesh type related error
Replies: 18
Views: 679

Re: mesh type related error

You are right, we have identified the problem and it will be solved in the next (2.0.4) version. The problem is that the foundation is so small, that it appears only in some of the 8 partitions (1,2,5, and 6), while it is not in partitions 0,3,4 and 7. You can see it when loading the database for th...
by STKO Team
Mon Aug 23, 2021 9:29 am
Forum: Interaction
Topic: Error after adding diaphragm interaction
Replies: 3
Views: 73

Re: Error after adding diaphragm interaction

You assigned 3 masses (Mx My Mz) to 2 nodes, so you have a total of 6 free DOFs with mass (dynamic DOFs). The default solver in Eigen is the -genBandArpack. This solver is good for large problems (dense or sparse) but can give you at most N-2 eigenvalues, where N is the number of dynamic DOFs. You r...