CFD Online Logo CFD Online URL
www.cfd-online.com
[Sponsors]
Home > Forums > General Forums > Structural Mechanics

How to tensile test multiple surface bodies?

Register Blogs Community New Posts Updated Threads Search

Reply
 
LinkBack Thread Tools Search this Thread Display Modes
Old   May 21, 2015, 12:48
Default How to tensile test multiple surface bodies?
  #1
New Member
 
sal
Join Date: May 2015
Posts: 4
Rep Power: 11
sghod17 is on a distinguished road
I am trying to perform a simulation of a uniaxial tensile test with a group of surface bodies (with a small thickness applied) that is connected to solids to apply the boundary conditions. There is a symmetry condition applied across the cross section of the body. I keep getting the error " A large negative pivot value ( -1.62459881E-07 ) has been encountered in the global assembled matrix. This may be caused by a bad temperature-dependent material property used in the model." Therefore, I changed my materials to structural steel for troubleshooting purposes but the problem continued. I am out of ideas what to do next. Please help!
Attached Images
File Type: jpg Geometry.jpg (19.0 KB, 9 views)
File Type: jpg Mesh.jpg (42.3 KB, 8 views)
File Type: jpg Loads and Supports.jpg (24.0 KB, 9 views)
sghod17 is offline   Reply With Quote

Old   December 24, 2017, 11:43
Default
  #2
New Member
 
Pawan
Join Date: Apr 2016
Posts: 3
Rep Power: 10
pawangajare22 is on a distinguished road
Me too having the same problem
pawangajare22 is offline   Reply With Quote

Reply

Tags
large pivot value


Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are Off
Pingbacks are On
Refbacks are On


Similar Threads
Thread Thread Starter Forum Replies Last Post
[snappyHexMesh] SnappyHexMesh no layers and no decent mesh for complex geometry pizzaspinate OpenFOAM Meshing & Mesh Conversion 1 February 25, 2015 07:05
[snappyHexMesh] Layers don't fully surround surface EVBUCF OpenFOAM Meshing & Mesh Conversion 14 August 20, 2012 04:31
[ICEM] Automatic mesh generation script surface intersection problem stuart23 ANSYS Meshing & Geometry 0 May 13, 2011 01:10
Surface Tension Test Cases sega OpenFOAM Running, Solving & CFD 2 March 8, 2011 12:19
Test Case for Multiple Reference Model (MRF) CFDtoy Main CFD Forum 0 May 9, 2007 11:45


All times are GMT -4. The time now is 07:40.