"Prd_Ite" error while modeling link element

04-Unexpected behaviour/errors
Post Reply
Sheheryar2015
Posts: 4
Joined: 24 Jul 2017, 19:24

"Prd_Ite" error while modeling link element

Post by Sheheryar2015 »

Hello to you all. I am new here.
I am trying to model a link element which can deform in just one direction and in other it is highly stiff. I have test data for the deformable direction of the link which is bi linearly idealized. I have assigned these properties in the F3(+ve) direction. Now in order to simulate the highly stiff support in F3(-ve) direction, i have assigned a high value of stiffness and Yield Force.
Following is the data:
(UNITS: N and mm)
F3 (+ve)
Ko+=2196.60
Fy+=3295.03
r+=0.005
F3(-ve)
Ko-=100000.00
Fy-=-1.5000E+006
r-=0.01
When i run analysis, it starts giving "Prd_Ite" error. But when i run the analysis with the default Stiffness in (-ve) direction i-e 10000 N/mm, it works fine. I have observed in number of trials that its just the increased stiffness value in negative direction causing this issue. Stiffness value equal to or less than the default value works fine. But i want the system to deform just in F3(+ve) direction according to assigned behavior and behave rigid (No deformation) when loaded in (-ve)F3 direction.
Can any one suggest a solution for this problem????
User avatar
z.gronti
Posts: 630
Joined: 16 Oct 2013, 08:14

Re: "Prd_Ite" error while modeling link element

Post by z.gronti »

Dear Sheheryar2015,

You will find a number of posts on this matter if you carry out a search on this forum for the term "unable to apply".

Also, you may find a list with the convergence difficulties that may arrise and their solution in the User Manual, the Help System and in the video below:
https://www.facebook.com/22301629122752 ... 444459842/
https://www.youtube.com/watch?v=p6tAyoofDog
Zoi Gronti
Seismosoft Srl.
Sheheryar2015
Posts: 4
Joined: 24 Jul 2017, 19:24

Re: "Prd_Ite" error while modeling link element

Post by Sheheryar2015 »

Sir, I have tried all the methods shown in this video of convergence difficulties but still my problem is not solved. Is it possible that you could have a look at my model? It is my Masters research work and i am stuck here from last few days and have tried each and every thing.
User avatar
z.gronti
Posts: 630
Joined: 16 Oct 2013, 08:14

Re: "Prd_Ite" error while modeling link element

Post by z.gronti »

Dear Sheheryar2015,

You may send me your model at z.gronti@seismosoft.com to take a look at it.
Zoi Gronti
Seismosoft Srl.
Sheheryar2015
Posts: 4
Joined: 24 Jul 2017, 19:24

Re: "Prd_Ite" error while modeling link element

Post by Sheheryar2015 »

Okay Sir. Thankyou so much
Post Reply

Return to “04-Unexpected behaviour/errors”