Tek-Tips is the largest IT community on the Internet today!

Members share and learn making Tek-Tips Forums the best source of peer-reviewed technical information on the Internet!

Register Log in
  • Congratulations cowski on being selected by the Eng-Tips community for having the most helpful posts in the forums last week. Way to Go!

Spring2 forces

Status
Not open for further replies.
engm

engm

Mechanical
Joined
Jun 10, 2004
Messages
7
Location
US
Hi,
I am using spring2 elements for connecting two structures in my model. Can anyone tell me what output variables I can specify for its element forces, and what are its element elongation output variables? Thanks.
engm
 
Sort by date Sort by votes
Typical outout variables for springs are spring force and nodal displacement. Check the manual to be sure.
 
Upvote 0 Downvote
Drej,
Thank you. I assigned s11 to the spring2 to get force output, according to the manual. But it didn't work. I've tried to find the right output variable for this element, but no success. Can you advise? Thanks again.
engm
 
Upvote 0 Downvote
engm - S11 is a directional stress in ABAQUS parlance, not a force. Check the manual (I do not have one with me) to see the syntax for a directional force output (see 'Output Variables' under the element description).

Cheers,

-- drej --
 
Upvote 0 Downvote
Drej,
The S11 is just what the manual said for the spring2's force output (on page 17.2.2-2 in analysis user manual vol.4, version 6.4). On the same page, it also put E11 as the relative displacement across the spring, which does not look right either. I was wondering where in the manual can I find the right element output for spring2.
engm
 
Upvote 0 Downvote
What does your input deck look like?
 
Upvote 0 Downvote
By the way, if S11 is the axial stress output from the spring then, of course, it is a doddle to find the axial force:

axial force = axial stress * cross sectional area of spring


Same goes for the displacement:

axial displacement = axial strain * spring length

Just a thought.

-- drej --
 
Upvote 0 Downvote
Hi, Drej,
I found out that the spring2's force and relative displacement: S11 & E11 are for *el print only (writing to .dat). The *element output does not support them to be written to .odb. That's where I encountered problem. I was hoping to plot the spring2 force and relative disp contour in viewer, but it looks like I can only write them to *.dat file.
engm
 
Upvote 0 Downvote
Status
Not open for further replies.

Similar threads

jball1
  • Locked
  • Question Question
Extracting nodal forces
Replies
1
Views
1K
jball1
jball1
Sakthiiitm
  • Locked
  • Question Question
Regarding section forces and stress in a model
Replies
2
Views
563
Sakthiiitm
Sakthiiitm
Gov45
  • Locked
  • Question Question
How to request sectional forces for shell elements in ABAQUS
Replies
1
Views
572
FEA way
FEA way
MariosK
  • Locked
  • Question Question
Abaqus springs: output forces and dispalcements
Replies
4
Views
636
MariosK
MariosK
ruzfactor
  • Locked
  • Question Question
Verify Section Forces
Replies
3
Views
257
FEA way
FEA way

Part and Inventory Search

Sponsor

Back
Top