Re: [Yade-users] [Question #707788]: Porosity in rotated measuring area
Question #707788 on Yade changed: https://answers.launchpad.net/yade/+question/707788 Status: Open => Needs information Karol Brzezinski requested more information: Hi Paul, Do you need to measure the porosity on the fly (required to trigger some actions in the simulation)? If it can be done in postprocessing, the simplest way would be using axis aligned porosity function and rotating the sample. Cheers, Karol -- 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 #707788]: Porosity in rotated measuring area
New question #707788 on Yade: https://answers.launchpad.net/yade/+question/707788 Hello dear YADE community, I would like to determine the porosity locally in a delimited area in the experimental space on which my simulation is based. In principle, the command "voxelPorosity()" seems to be well suited for this purpose [1]. The application of the command itself works quite well. If I have understood the command correctly, the area to be analyzed with the given vertices is spanned by a cuboid, parallel to the coordinate axes [2]. However, I am afraid that my further requirements can thus not be completely fulfilled: I want to sample a cylindrical experimental space locally with respect to porosity. This means for the porosity determination that I want to rotate this cuboid or here specifically as a cube around the z-coordinate. For this rotation I can for example specify a quaternion with, which the "voxelPorosity()".however does not pick up. How can I determine the porosity of a cube (filled with spherers) rotated around the z-axis? I am looking forward to help and hope to find a solution to the problem, with best wishes, Paul [1] https://answers.launchpad.net/yade/+question/690057 [2] https://answers.launchpad.net/yade/+question/384899 -- 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 #707197]: Undrained triaxial (NOT CONSTANT VOLUME)
Question #707197 on Yade changed: https://answers.launchpad.net/yade/+question/707197 Status: Expired => Open Fedor is still having a problem: Should I close this 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
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: Open => Answered Robert Caulk proposed the following answer: Upon review, please let us know if your problem is solved by the Yade Guide suggested thread: https://answers.launchpad.net/yade/+question/657114 -- 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 Yade Guide posted a new comment: Hey mahdi2023, check out some related threads. This is an automated reply. Title: "Triaxial strength and strain about JCFpmMat parameters" Question by ziyuwang1 on 21 Feb 2022: Ziyuwang1 is using JCFpmMat to simulate rock materials and struggles with understanding which parameters affect peak strength. They've tried various combinations and are seeking suggestions for adjusting parameters. Luc provided a citation from reference [1] explaining the calibration procedure of the JCFPM model, suggesting to match the desired tensile strength to compressive strength ratio sigmac/sigmat, determine elastic parameters Eeq and kn/ks, local tensile strength t, and interparticle friction angle. The user also suggested looking at table 3 for sets of values for granite or sandstone. Coordination number is readily obtained in YADE with avgNumInteractions(). Ziyuwang1 found the solution provided by Jérôme Duriez helpful. https://answers.launchpad.net/yade/+question/700691 Title: "JCFmat model parameters issue" Question by mahdi2023 on 28 Aug 2023: Mahdi2023 is experiencing an issue with JCFmat model parameters for simulating the UCS of rock specimens when assigning a value to tensileStrength, causing the UCS response to be controlled by tensileStrength instead of cohesion (70 MPa). Robert suggests that when tensile strength is assigned a value, it plays a role in the simulation and when set to 0, it does not. He requests further details about the Yade and Linux versions being used. https://answers.launchpad.net/yade/+question/707758 Title: "strain - stress curve of three point bending test" Question by tinaatyade on 06 Jun 2017: Tina is seeking help with calculating the strain-stress curve for a three-point bending test using Yade. Jan suggests considering a force-displacement diagram and asks if Tina needs theoretical guidance or implementation help in Yade. Tina requests an algorithm to calculate the stress-strain relationship in YADE. Jan explains that in uniaxial tests, strain is the ratio of enlargement to original length and stress is the force divided by area. He also mentions that there are more general formulas for calculating stress, but in the case of three-point bending, force-displacement would be enough. Jan provides links to relevant Yade documentation. https://answers.launchpad.net/yade/+question/641619 Title: "Computing lateral strains in uniaxial tension tests" Question by luc on 29 Aug 2017: Luc is seeking an efficient way to compute lateral strains in uniaxial tension tests using the uniaxialStrainer. Currently, there's no available function for this purpose. Jan suggests a method that involves calculating the distance of suitable particles from the central axis or surface and averaging their strain values. https://answers.launchpad.net/yade/+question/657114 -- 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 #707641]: How to make a propeller spin?
Question #707641 on Yade changed: https://answers.launchpad.net/yade/+question/707641 Status: Open => Expired Launchpad Janitor expired the question: This question was expired because it remained in the 'Open' state without activity for the last 15 days. -- 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
