Yade

Computing lateral strains in uniaxial tension tests

Asked by Luc Scholtès

Hello all,
What would be the "simplest" way to compute the lateral strains in a uniaxial tension test (performed with uniaxialStrainer)?
Is there already a function that I could use?
At the moment, the only option that I can see would be to add a dedicated feature in uniaxialStrainer.
Please let me know
Thanks
Luc

Question information

Language:
English Edit question
Status:
Answered
For:
Yade Edit question
Assignee:
No assignee Edit question
Last query:
Last reply:
Revision history for this message
Jan Stránský (honzik) said : 		#1

Hi Luc,
I don't know about such function.
I did it some time ago. I just used average strain over "suitable" particles, strain being
strain = (distance(pos)-distance(refPos)) / distance(refPos)
where distance was the distance from central axis (cylinder sample) or plane (box sample). A tricky part was to define which particles are "suitable" for the computation. That very near the axis had negative influence, as well as those "crushed away" from the surface and flying away. I choose those roughly half-way from the axis to surface.
HTH
Jan

Can you help with this problem?

Provide an answer of your own, or ask Luc Scholtès for more information if necessary.

To post a message you must log in.