iMechanica - ABAQUS cylindrical coordinate system boundary condition failure? - Comments

Hello Ying, First of all,

Rhodri J. Colin York — Mon, 31 Mar 2008 15:59:50 -0400

Hello Ying,

First of all, thank you for your reply, I am very greatful.

In regards to my question, I am going to source help from elsewhere as I feel there are too many variables associated with the model that make the intial question too open-ended for an internet forum discussion.

Once again, thank you for your input!

Rhodri

are u sure?

Ying Li — Sun, 30 Mar 2008 03:49:39 -0400

There is not clear sign for the expansion of the constrained edges. Could u supply more information, i.e. the displacement plot?

Ying Li Department of Engineering Mechanics Tsinghua University Beijing, 100084, P. R. CHINA

ABAQUS cylindrical coordinate system boundary condition failure?

Rhodri J. Colin York — Fri, 28 Mar 2008 20:40:16 -0400

Fig 1 - Why does the boundary condition...:

Fig 2 0 ...result in the expansion of the tube's edge:

Surely the boundary condition should prevent the expansion of the end of the tube in the x-y (1-2, R-T) plane? Am I doing something wrong? Note the BC datum coordinate system is a cylindrical coordinate system with origin on the tube's axis (as shown in Fig 1 in yellow). Thank you for your help, much appreciated.

Rhodri