Plane stress tensile testing
Plane stress tensile testing
(OP)
Hello,
I wanted to model tensile testing of a steel plate(100mm*15*2mm, plane stress condition)using COSMOS/Solidworks. I have two questions. Could you help me?
1.when I use roller/slider to fix the base of the plate and I set 1mm displacement at the other end, solver fails. So I use fixed geometry in the base. IS this B.C. the right one?
2.What type of element is suitable for plane stress state in COSMOS?
Thank you,
Jamal
I wanted to model tensile testing of a steel plate(100mm*15*2mm, plane stress condition)using COSMOS/Solidworks. I have two questions. Could you help me?
1.when I use roller/slider to fix the base of the plate and I set 1mm displacement at the other end, solver fails. So I use fixed geometry in the base. IS this B.C. the right one?
2.What type of element is suitable for plane stress state in COSMOS?
Thank you,
Jamal





RE: Plane stress tensile testing
1. Yes, but then, no. What was the failure message? Could it be related to the fact you have a 1% strain condition?
2. A plane stress element.
RE: Plane stress tensile testing
RE: Plane stress tensile testing
It is academic research,
1.Failure message is just "solver failed", I think it is because there is very small displacement(maybe due to rounding errors?)in the transverse direction and as there is no constraint in that direction, nothing stops plate from displacing in the transverse direction. So I use fixed geometry to solve this problem; however I think this is not the right BC.
2. Where can I find plane stress element. I don't see this option when I want to create mesh.
I also had this question:
3.Is time dependent displacement at the loading end the right method to model loading-unloading-reloading of the plate?
RE: Plane stress tensile testing
Sorry for silly question, but in cosmos we have either fixed geometry(6DOF) of roller slider(fixed in one direction, say fixed in x direction and it can move in yz plane). I don't see any option to put limit on rotations! Could you tell me how I can do this on nodes?
Thanks
RE: Plane stress tensile testing
still, if the load reacted by the additional constraints is small (very, very small) then you could consider the results reasonable. "additional constraints" refers to constraints added to solve rigid body motion, as opposed to constraints you needed to reflect the real structure.
RE: Plane stress tensile testing
We have a forum for SolidWorks: Simulation/FEA (COSMOS).
That is a more suitable place for your question.
RE: Plane stress tensile testing
How can I make sure that few constraints and element is due to my limited version? If I go for another version of Solidworks, can I define plane stress element and fix nodes in certain direction and rotation? Or I should go for another FE software like ANSYS?
RE: Plane stress tensile testing
RE: Plane stress tensile testing
The only way I've found to move threads is to:
(1) highlight and copy (and then it helps to use the {quote NAME} {/quote} (only with square brackets) around everyone's replies to separate them out.
(2) take a screen shot and post that.
(3) bite the bullet, retype your questions, and summarize the replies you've already received.
If you do start a new thread in the Solidworks forum (which is the better place), please red flag this one.
Thanks
Patricia Lougheed
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RE: Plane stress tensile testing
Sounds like the error is "user input misunderstanding".
Kenneth J Hueston, PEng
Principal
Sturni-Hueston Engineering Inc
Edmonton, Alberta Canada
RE: Plane stress tensile testing
at Cockroach: Thanks, but I don't agree with you. Because with a roller slider we let the model to slide in that surface(the surface perpendicular to the roller/slider).
I found how to to use appropriate BC for tensile testing. I think using roller/slider constraint is not enough.
The best way to set constraints for a tesile testing is defined in the following video:
http://