Search found 34 matches

by nilz
Sun Aug 19, 2018 5:07 am
Forum: OpenSees.exe Users
Topic: Progressive analysis
Replies: 2
Views: 310

Progressive analysis

Dear all researchers I tend to remove my element after reaching the defined force. but I don't know how to write a loop for understanding which the element forces reached to the defined force or not. and after removing the element, How can converge the analysis? If anyone has a code, please provide ...
by nilz
Fri May 04, 2018 10:11 pm
Forum: OpenSees.exe Users
Topic: creating cyclic protocol
Replies: 0
Views: 185

creating cyclic protocol

Dear all For creating a cyclic protocol based on AISC 341-16, how calculate the parameters below for our model? Δbm = value of deformation quantity, Δb, at least equal to that corresponding to the design story drift, in. (mm) Δby = value of deformation quantity, Δb, at first yield of test specimen, ...
by nilz
Fri Apr 27, 2018 5:15 am
Forum: OpenSees.exe Users
Topic: Modeling SCB frames using beam-column elements Fatigue mater
Replies: 0
Views: 191

Modeling SCB frames using beam-column elements Fatigue mater

Dear Vesna, In your Opensees code for SCBF based on the presentation by the name of "Modeling SCB frames using beam-column elements," you used Fatigue material for braces the same as bellow : uniaxialMaterial Fatigue $matTag $tag <-E0 $E0> <-m $m> <-min $min> <-max $max> uniaxialMaterial Fatigue $ma...
by nilz
Tue Apr 17, 2018 10:56 pm
Forum: OpenSees.exe Users
Topic: Fatigue Material damage recorder
Replies: 7
Views: 5119

Re: Fatigue Material damage recorder

Dears Ozgura and FMK,

How to determine the fiber numbers in a section?
desertemerland@yahoo.com

Sincerely yours
by nilz
Mon Mar 19, 2018 10:54 am
Forum: OpenSees.exe Users
Topic: Definition of orient for zerolength element
Replies: 0
Views: 252

Definition of orient for zerolength element

Dear all I tend to define orient in a zero-length element for a brace, but I don't know how to calculate the orient parameters? I have read the Opensees wiki example but I did not understand. An example If brace angle with the x-axis is 30 degrees, How are the following parameters calculated? -orien...
by nilz
Mon Mar 19, 2018 1:32 am
Forum: OpenSees.exe Users
Topic: Zerolength orientation
Replies: 2
Views: 465

Re: Zerolength orientation

Hello Dears
How must calculate the parameters of orient for zero-length element?
by nilz
Tue Jan 23, 2018 3:29 am
Forum: Parallel Processing
Topic: How to run dll file in Opensees?
Replies: 1
Views: 1516

How to run dll file in Opensees?

Dear fmk and all I have a dll file that is written by someone else. I put it in the same folder as my OpenSees executable. But I get this warning "WARNING could not create uniaxialMaterial MaxStrainRange" What should I do to make this file work properly? Your kindness is highly appreciated. I look f...
by nilz
Mon Jan 22, 2018 11:53 am
Forum: Framework
Topic: Adding Material Works on Windows, Not on Linux
Replies: 17
Views: 5878

Re: Adding Material Works on Windows, Not on Linux

difrex wrote:
> http://www.difrex.com/
What is this link about?
by nilz
Tue Jan 16, 2018 8:27 am
Forum: Framework
Topic: Adding Material Works on Windows, Not on Linux
Replies: 17
Views: 5878

Re: Adding Material Works on Windows, Not on Linux

Dears fmk and edwardal
Is the code in Hiao's thesis perfect and working properly? or not?
because i want to implement this code to Opensees, I am not sure about it, please help me.
best regards
by nilz
Wed Dec 20, 2017 1:08 am
Forum: OpenSees.exe Users
Topic: buckling simulation
Replies: 2
Views: 524

buckling simulation

How can consider out of plane buckling in 2d model braced frames in Opensees?
by nilz
Sun Dec 17, 2017 2:49 am
Forum: OpenSees.exe Users
Topic: Strain limitation
Replies: 8
Views: 869

Re: Strain limitation

jackmil wrote: > dear frank > thank u for ur concern > i knew that a new fracture material model was implemented in the OPENSEES > framework based on the results > of the NEEShub - Laboratories that developed and written by po-Chien Hsiao > from UW seatle. > I have the both .cpp & .h of that materia...
by nilz
Sun Dec 17, 2017 2:40 am
Forum: Framework
Topic: Adding Material Works on Windows, Not on Linux
Replies: 17
Views: 5878

Re: Adding Material Works on Windows, Not on Linux

Dear edwardal,
I want to use FractureMaterial from Po-Chien Hsiao's PhD thesis "Seismic Performance Evaluation of Concentrically Braced Frames", 2012.
What should I do?
I must implement the c++ code into Opensees or is there another way?
please help me.
by nilz
Sun Dec 17, 2017 2:10 am
Forum: OpenSees.exe Users
Topic: Hsiao's brace fracture model
Replies: 0
Views: 352

Hsiao's brace fracture model

Hi dears I work on chevron braced frames. I am using Hsiao's model for brace fracture in this article "Seismic Vulnerability of Older Braced Frames". https://ascelibrary.org/doi/abs/10.1061/%28ASCE%29CF.1943-5509.0000394 or https://www.researchgate.net/publication/273619044_Seismic_Vulnerability_of_...
by nilz
Sat Dec 16, 2017 6:27 am
Forum: Framework
Topic: Hsiao (2013) Strain Range Fatigue Model
Replies: 5
Views: 1609

Re: Hsiao (2013) Strain Range Fatigue Model

Dear edwardal
could you implement the above code in Opensees?
and could you find any version of Opensees which have the FractureMaterial?
by nilz
Sat Dec 16, 2017 5:05 am
Forum: OpenSees.exe Users
Topic: Pinching 4 Material
Replies: 1
Views: 694

Re: Pinching 4 Material

Hi Ebrahim
Could you define the pinching4 material parameters?
I have the same problem