Re: [Yade-users] [Question #641619]: strain - stress curve of three point bending test
Question #641619 on Yade changed: https://answers.launchpad.net/yade/+question/641619 Status: Open => Answered Jan Stránský proposed the following answer: Hi Tina, it strongly depends on the context. In uniaxial test, it is simply strain = enlargement / original length stress = force / area There is more general formula to calculate stress, see [1,2] In the case of three point bending, why do you need stress-strain? Wouldn't force-displacement be enough? Probably you could measure/compute stress-strain locally, but it is IMO not very meaningful in the DEM case.. cheers Jan [1] https://yade-dem.org/doc/yade.utils.html#yade._utils.bodyStressTensors [2] https://yade-dem.org/doc/yade.utils.html#yade._utils.getStress -- You received this question notification because your team yade-users is an answer contact for Yade. ___ Mailing list: https://launchpad.net/~yade-users Post to : yade-users@lists.launchpad.net Unsubscribe : https://launchpad.net/~yade-users More help : https://help.launchpad.net/ListHelp
Re: [Yade-users] [Question #641619]: strain - stress curve of three point bending test
Question #641619 on Yade changed: https://answers.launchpad.net/yade/+question/641619 Status: Answered => Open Tina Asia is still having a problem: Hi Jan, Could you tell me the algorithm of calculating the stress-strain relationship in YADE? I will do that by writing my own code. Thanks in advance, Tina -- You received this question notification because your team yade-users is an answer contact for Yade. ___ Mailing list: https://launchpad.net/~yade-users Post to : yade-users@lists.launchpad.net Unsubscribe : https://launchpad.net/~yade-users More help : https://help.launchpad.net/ListHelp
Re: [Yade-users] [Question #641619]: strain - stress curve of three point bending test
Question #641619 on Yade changed: https://answers.launchpad.net/yade/+question/641619 Status: Open => Answered Jan Stránský proposed the following answer: Hi Tina, > I have read some similar questions please write us, which question you have seen. > However, in a three-point bending test, I really have no any idea to work out it. Do you mean how to do it theoretically, or how to implement it in Yade? Anyway, in three point benging, isn't force-displacement diagram more reasonable? cheers Jan -- You received this question notification because your team yade-users is an answer contact for Yade. ___ Mailing list: https://launchpad.net/~yade-users Post to : yade-users@lists.launchpad.net Unsubscribe : https://launchpad.net/~yade-users More help : https://help.launchpad.net/ListHelp
[Yade-users] [Question #641619]: strain - stress curve of three point bending test
New question #641619 on Yade: https://answers.launchpad.net/yade/+question/641619 Hi, How to calculate the strain-stress curve in a three-point bending test? I have read some similar questions about strain-stress curve, but still have no idea to do this. I created my sample using jcfpmmat. I have got the strain-stress curve when my sample was compressed in a uniaxial compression using UniaxialStrainer (https://yade-dem.org/doc/yade.wrapper.html?highlight=strain#yade.wrapper.UniaxialStrainer). However, in a three-point bending test, I really have no any idea to work out it. Can anyone give me some hints or tips to do this? Thanks in advance, Tina -- You received this question notification because your team yade-users is an answer contact for Yade. ___ Mailing list: https://launchpad.net/~yade-users Post to : yade-users@lists.launchpad.net Unsubscribe : https://launchpad.net/~yade-users More help : https://help.launchpad.net/ListHelp
