Shahed Rana a écrit : > Hi All, > I have some question on Triaxial Test. > >In my earlier mail I wanted to know about different particle size... > For the different particle size: have a look at TriaxialTest, it generates > spheres at random of diameter .5 and 1.5 IIRC. Václav can any body explain > little more .5 and 1.5 IIRC? >From Triaxial Test.cpp---mean > radius,minrad,and max rad explored,with the co-operation of Jerome. > min_rad=(1-0.3)*mean_rad So, it generates spheres between 0.7 and 1.3 (not 0.5, 1.5). > max_rad=(1+0.3)*mean_rad
and the initial mean size of particles (can change later with internal compaction) is : > mean_rad=((xyz(1-porosity)/(pi*n*(4/3))^(1/3) > > But.. 00087 string GenerateCloud(vector<BasicSphere>& sphere_list, Vector3r > lowerCorner, Vector3r upperCorner, long number, Real rad_std_dev, Real > porosity) 00272 message > <http://yade.berlios.de/doxygen/html/dc/dba/classFileGenerator.html#9f2e268de52c62d9bbdc7c8b0eaa48e9>=GenerateCloud(sphere_list, > lowerCorner > <http://yade.berlios.de/doxygen/html/da/d15/classTriaxialTest.html#96f70126f235ee9a33a2ff264c9c8e84>, > upperCorner > <http://yade.berlios.de/doxygen/html/da/d15/classTriaxialTest.html#792aed3852b6b1136583f644009d1481>, > numberOfGrains > <http://yade.berlios.de/doxygen/html/da/d15/classTriaxialTest.html#c91bc9c756934fc8060788a6a1cdd360>, > 0.3, 0.75); It means rad_std_dev=0.3,My question why 0.3 and how this value > computed? >Last.from the File generator window>Triaxial Test Parameter> 0.3 is not computed, its just 0.3. If you prefer 0.5 you can modify this. What should be done in fact is to add a registered parameter that could be changed by users. > 1.what is the significance of damping force and damping moment?of course in > dem they have significance effect. But from which part of YADE, I can make > look to know about these..like to chose the value..default given 0.2. Just to be sure : you know that you can use ctags from inside kdevelop to find where a variable is defined? Look into classes with damping in their names, damping is used in them. > 2.sigma_iso = 50000..is it isotropic pressure? Yes, it is the pressure that TriaxialStressController will try to maintain on each "activated" boundary. So... it is not always isotropic as less than 6 boudaries may be activated at the same time. > . > . > Is there any more reference to which I can look? > For questions like this, unfortunately not. You can ask here when you have precise questions on the meaning of some parameters. However, if you feel like commenting the code here and there in the meantime, you can always send me commented files and I'll commit them on the SVN server. Bruno > Regards, Rana > > ------------------------------------------------------------------------ > Be a better friend, newshound, and know-it-all with Yahoo! Mobile. Try > it now. > <http://us.rd.yahoo.com/evt=51733/*http://mobile.yahoo.com/;_ylt=Ahu06i62sR8HDtDypao8Wcj9tAcJ%20> > > > > ------------------------------------------------------------------------ > Be a better friend, newshound, and know-it-all with Yahoo! Mobile. Try > it now. > <http://us.rd.yahoo.com/evt=51733/*http://mobile.yahoo.com/;_ylt=Ahu06i62sR8HDtDypao8Wcj9tAcJ%20> > > > ------------------------------------------------------------------------ > > _______________________________________________ > Yade-users mailing list > [email protected] > https://lists.berlios.de/mailman/listinfo/yade-users > -- _______________ Chareyre Bruno Maitre de conference Institut National Polytechnique de Grenoble Laboratoire 3S (Soils Solids Structures) - bureau E145 BP 53 - 38041, Grenoble cedex 9 - France Tél : 33 4 56 52 86 21 Fax : 33 4 76 82 70 43 ________________ _______________________________________________ Yade-users mailing list [email protected] https://lists.berlios.de/mailman/listinfo/yade-users
