[Yade-users] [Question #707806]: JCFmat model - UCS Prediction - How "intRadius" affect the models?
New question #707806 on Yade: https://answers.launchpad.net/yade/+question/707806 Dear All, I am currently facing a significant challenge while conducting UCS tests using the JCFmat model. The issue revolves around the parameter "intRadius," and I would appreciate your insights into its impact on the models. The problem arises when I set "intRadius" to 1.5. At this value, the UCS measures approximately 20 MPa. However, when I increase "intRadius" to 2.0, the UCS drastically jumps to around 200 MPa. In the second trial, the stress-strain curve deviates from the typical curve observed in our other tests. It initially exhibits an elastic stage up to 50 MPa, followed by a small peak, and then transitions into another elastic stage with a lower slope until it reaches the peak at 200 MPa. I suspect that the issue lies with the "intRadius" parameter. Does anyone have insights into what might be causing this? For reference, I am using the approach outlined in the paper available at https://hal.science/hal-01315522/. It would be immensely helpful if someone could provide a code snippet used in this paper for simulating the UCS test. Thank you for your assistance. Best regards, Mahdi -- 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 #707780]: JCFmat model - Measuring Radial Strain in UCS Test
Question #707780 on Yade changed: https://answers.launchpad.net/yade/+question/707780 Status: Answered => Solved Mahdi confirmed that the question is solved: Thank you, Robert. I've gained some valuable insights. I'm currently in the process of developing a function to measure the radial strain in "cube" specimens. My approach involves defining a "measuring zone" by selecting a band of particles at the top, center, and bottom of the specimen. Subsequently, we can calculate the average strain in both the x and y directions. The average of these two values can then be used as the radial strain. For "cyl" specimens, the process is a bit more complex. We'll need to measure the radial displacement of each particle within the band, and we'll also need to determine the local coordinates of the particles to calculate the radial direction accurately. Any advice is highly appreciated. I'll be sure to share the results once I obtain some meaningful outcomes! Thanks again. -- 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 #707758]: JCFmat model parameters issue
Question #707758 on Yade changed: https://answers.launchpad.net/yade/+question/707758 Status: Answered => Solved Mahdi confirmed that the question is solved: Thanks Luc Scholtès, that solved my question. -- 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 #707780]: JCFmat model - Measuring Radial Strain in UCS Test
New question #707780 on Yade: https://answers.launchpad.net/yade/+question/707780 Hi Everyone, I am conducting a UCS test on cylindrical rock specimens using the JCFmat model. I need to measure the radial strain of the specimen. Is there any specific function or method available in YADE to accomplish this? Regards, Mahdi -- 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 #707938]: How to measure local strain rate within YADE particle assembly
New question #707938 on Yade: https://answers.launchpad.net/yade/+question/707938 Dear YADE community, I want to measure the local strain rate [Velocity Tensor] within YADE particles (for a selected zone within a UCS specimen). Specifically, I am looking for an infinitesimal strain tensor, rotation tensor as well as velocity gradient tensor. It would be great if anyone has any ideas. Many thanks, Mahdi -- 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 #707938]: How to measure local strain rate within YADE particle assembly
Question #707938 on Yade changed: https://answers.launchpad.net/yade/+question/707938 Status: Needs information => Open Mahdi gave more information on the question: Hi Jan, I appreciate your prompt response. I am aware that the "UniaxialStrainer" feature can be activated, allowing us to measure axial strain using the equation Axial_Strain = -strainer.strain. However, it gives the global strain values (Macroscopic response). Unfortunately, my search in the YADE manual has not yielded any functions or methods directly related to obtaining local strain information within the particle assembly. I would greatly appreciate it if you could share any insights or recommend any functions or methods that can help us obtain the local strain data. Thank you for your assistance. Mahdi -- 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 #707938]: How to measure local strain rate within YADE particle assembly
Question #707938 on Yade changed: https://answers.launchpad.net/yade/+question/707938 Status: Answered => Solved Mahdi confirmed that the question is solved: Thanks Jan, I am working on it. This issue is now solved., @Robert, sure I have moved to github for any new questions. ' Thank you a lot. -- 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 #707758]: JCFmat model parameters issue
Question #707758 on Yade changed: https://answers.launchpad.net/yade/+question/707758 Status: Needs information => Open Mahdi gave more information on the question: Hi Robert, Many thanks for your reply! I believe I've resolved the issue. The problem was with the value of "intRadius." I'm not entirely sure what it represents, but I increased it to 1.5, and now the model is functioning correctly. Previously, when it was set to 1.3, the model was only controlled by tensile strength. However, increasing the cohesion had no observable effect. Do you know what is "intRadius"? Thanks -- 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
