New question #404228 on Yade: https://answers.launchpad.net/yade/+question/404228
Hi, I want to study the CmpMat material. So I read the paper 'Cohesive Particle Model using the Discrete Element Method on the Yade Platform' which was written by Václav Šmilauer and described the CmpMat model. I also read the code in YADE about the CmpMat. But I still have some confusions about it as following. [1]The paper said in page 38 that the normal stress-strain law is formulated within the framework of damage mechanics and gave Figure3.1 and Figure3.2 to illustrate its characteristics under tension. But from the figures, I do not know the condition that the interaction break down. That is, the equation σN = [1 - ωH(εN)]kNεN show that the σN will always have positive values when the interaction under tension(εN>0), and the interaction will not break no matter how I much tense it(ω<1 from Figure3.1). But a interaction should break under large tension, because when the two bodies become far away, there should be no force between them. Do I have some misunderstandings about it? [2]The paper said in page 165 that 'For commercial reasons, rate-dependence and compression-plasticity is not present in reduced version of the model, used when CPM_MATERIAL_MODEL is not defined.'. I know the compression-plasticity is 3.2.3.1 compressive plasticity in page 39. But the characteristics about rate-dependence are so many, what items does it include? Can you show me the specific section of the chapter 3? Thank you. Liu keqi -- 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 : [email protected] Unsubscribe : https://launchpad.net/~yade-users More help : https://help.launchpad.net/ListHelp
