Re: [Yade-users] [Question #432848]: yade compiled installation in a redhat cluster
Question #432848 on Yade changed: https://answers.launchpad.net/yade/+question/432848 Status: Answered => Open hanzj is still having a problem: hello，Anton， I can not see anything but directly segmentation fault and Yade crashed soon，it is weird.is there something like error.log for me to refer to after it crashed？ > 在 2017年1月21日，上午1:17，Anton Gladky <question432...@answers.launchpad.net> 写道： > > Question #432848 on Yade changed: > https://answers.launchpad.net/yade/+question/432848 > >Status: Open => Answered > > Anton Gladky proposed the following answer: > Debug mode just means that the debug-symbols will not > be stripped. So, before the crash you should get some > stacktrace in the console. There is no special command > line option for debugging. > > Anton > > -- > 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 -- 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 #432848]: yade compiled installation in a redhat cluster
Question #432848 on Yade changed: https://answers.launchpad.net/yade/+question/432848 Status: Answered => Open hanzj is still having a problem: hello ,Thoeni and all: Yeah, I try that. 1)here is my cmake cmake -DCMAKE_INSTALL_PREFIX=../install ../trunk -DNOSUFFIX=ON -DCMAKE_C_COMPILER=/apps/lib/gcc-4.7.1/bin/gcc -DCMAKE_CXX_COMPILER=/apps/lib/gcc-4.7.1/bin/g++ -DDEBUG=1 -DENABLE_GUI=OFF -DENABLE_CGAL=OFF -DENABLE_GTS=OFF -DBOOST_ROOT=/apps/lib/boost_1_54_0 -Dboost_INCLUDE_DIRS=/apps/lib/boost_1_54_0/include -Dboost_LIBRARY_DIRS=/apps/lib/boost_1_54_0/lib -DENABLE_GTS=OFF -DENABLE_GL2PS=OFF -DENABLE_GUI=OFF -DEIGEN3_INCLUDE_DIR=/apps/lib/eigen/eigen-eigen-36fd1ba04c12 -DENABLE_VTK=OFF is the -DDEBUG=1, right? 2)Another information is that I comment the cmakelist.txt minieigen and tkinter to make the compilation succeed. can I do that ? 3)and the make stage as follows: -- Version is set to 2016.06a -- GSL using pkgconfig -- WARNING: you are using the obsolete 'PKGCONFIG' macro, use FindPkgConfig -- PKGCONFIG() indicates that gts is not installed (install the package which contains gts.pc if you want to support this feature) FindGTS.cmake: gts-config/pkg-config gts not found. Please set it manually. GTS_CONFIG=GTS_CONFIG-NOTFOUND -- ERROR: GTS was not found. -- Could NOT find GL2PS (missing: GL2PS_LIBRARY GL2PS_INCLUDE_DIR) -- CGAL not found. -- Boost version: 1.54.0 -- Found the following Boost libraries: -- python -- thread -- filesystem -- iostreams -- regex -- serialization -- system -- date_time -- Boost_VERSION: 105400 -- Boost_LIB_VERSION: 1_54 -- Boost_INCLUDE_DIRS: /apps/lib/boost_1_54_0/include -- Boost_LIBRARIES: /apps/lib/boost_1_54_0/lib/libboost_python.so/apps/lib/boost_1_54_0/lib/libboost_thread.so/apps/lib/boost_1_54_0/lib/libboost_filesystem.so/apps/lib/boost_1_54_0/lib/libboost_iostreams.so/apps/lib/boost_1_54_0/lib/libboost_regex.so/apps/lib/boost_1_54_0/lib/libboost_serialization.so/apps/lib/boost_1_54_0/lib/libboost_system.so/apps/lib/boost_1_54_0/lib/libboost_date_time.so -- Found Eigen3, version: 3.2.3 -- Disable vectorization -- Found OpenMP -- PFVFLOW depends on CGAL, attempting to turn ENABLE_CGAL ON -- GMP libs: /usr/lib64/libgmp.so /usr/lib64/libgmpxx.so -- CGAL not found. -- GMP libs: /usr/lib64/libgmp.so /usr/lib64/libgmpxx.so -- CGAL NOT found -- CGAL NOT found: PFVFLOW disabled -- Could NOT find Cholmod (missing: CHOLMOD_LIBRARIES CHOLMOD_INCLUDE_DIR AMD_LIBRARY CAMD_LIBRARY COLAMD_LIBRARY CCOLAMD_LIBRARY) -- Could NOT find OpenBlas (missing: OPENBLAS_LIBRARY) -- Could NOT find Metis (missing: METIS_INCLUDE_DIR METIS_LIBRARY) -- Missing dependency for LINSOLV, disabled LBMFLOW is still experimental, building and running LBM engine are at your own risk! Yade will be installed to /home/luxy/Yade/install -- Suffix is set to -- LIBRARY_OUTPUT_PATH is set to lib64 -- runtimePREFIX is set to /home/luxy/Yade/install -- === -- Yade configured with following features: Odeint OpenMP LBMFLOW -- Disabled features: VTK GTS GUI CGAL PFVFLOW LINSOLV SPH LIQMIGRATION GL2PS MASK_ARBITRARY PROFILING PotentialParticles -- Debug build -- === -- Configuring done -- Generating done -- Build files have been written to: /home/luxy/Yade/build is the build stage, ok? 4)after build and installation I try ./yade -h I can not find how to use debug mode. like: --no-gdb Do not show backtrace when yade crashes (only effec- tive with –debug) and try ./yade it occurred :segmentation fault. [luxy@ln1 bin]$ ./yade -h usage: yade [options] [ simulation.xml[.bz2] | script.py [script options]] Yade: open-source platform for dynamic compuations. It is an extensible open- source framework for discrete numerical models, focused on Discrete Element Method. The computation parts are written in c++ using flexible object model, allowing independent implementation of new algorithms and interfaces. Python is used for rapid and concise scene construction, simulation control, postprocessing and debugging. Available features: ['Odeint', 'OpenMP', 'LBMFLOW']. Homepage http://www.yade-dem.org, code hosted at http://www.launchpad.net/yade. optional arguments: -h, --helpshow this help message and exit -v, --version Print version and exit. -j THREADS, --threads THREADS Number of OpenMP threads to run; defaults to 1. Equivalent to setting OMP_NUM_THREADS environment variable. --cores CORES Set number of OpenMP threads (as \-\-threads) and in addition set affinity of threads to the cores given. Please provide a string with comma-separated core-ids. --update UPDATESCRIPTS [UPDATESCRIPTS ...] Update deprecated class names in given script(s) using text search &
Re: [Yade-users] [Question #432848]: yade compiled installation in a redhat cluster
Question #432848 on Yade changed: https://answers.launchpad.net/yade/+question/432848 Status: Answered => Open hanzj is still having a problem: Hello,Anton and all, I adjust my LD_LIBRARY_PATH by "export LD_LIBRARY_PATH=/apps/lib/gcc-4.7.1/lib64:/usr/lib64:$LD_LIBRARY_PATH" and then I run ./yade, error occurred: Welcome to Yade 2016.06a Segmentation fault How to debug? any ideas? best regards Han Zhijian At 2017-01-20 02:22:53, "Anton Gladky" <question432...@answers.launchpad.net> wrote: >Question #432848 on Yade changed: >https://answers.launchpad.net/yade/+question/432848 > >Status: Open => Answered > >Anton Gladky proposed the following answer: >Hi, > >missing header was added. Thanks. It would be good to get >a feedback from people, using different OSs and (better) >pull request. > >It looks like the you have some path problems. There are some >info here [1]. > >[1] http://stackoverflow.com/questions/5216399/usr-lib-libstdc-so-6 >-version-glibcxx-3-4-15-not-found > >Regards > >Anton > > >2017-01-19 13:57 GMT+01:00 hanzj <question432...@answers.launchpad.net>: >> Question #432848 on Yade changed: >> https://answers.launchpad.net/yade/+question/432848 >> >> Status: Answered => Open >> >> hanzj is still having a problem: >> hello,flomine and all, >> >> thank you for your reply,It works,it can make install and finished well , >> but after install I can not use yade >> the error as follows: >> [luxy@ln1 bin]$ ./yade >> Welcome to Yade 2016.06a >> Traceback (most recent call last): >> File "./yade", line 129, in >> import yade >> File "/home/luxy/Yade/install/lib64/yade/py/yade/__init__.py", line 65, in >> >> import boot >> ImportError: /usr/lib64/libstdc++.so.6: version `GLIBCXX_3.4.15' not found >> (required by /home/luxy/Yade/install/lib64/yade/py/yade/boot.so) >> >> have you come across that? >> >> >> >> At 2017-01-19 18:57:52, "flomine" <question432...@answers.launchpad.net> >> wrote: >>>Question #432848 on Yade changed: >>>https://answers.launchpad.net/yade/+question/432848 >>> >>>Status: Open => Answered >>> >>>flomine proposed the following answer: >>>Hi Hanzj, >>>I had a similar issue on archlinux. >>>Try to had >>> #include >>>at the beginning of /home/luxy/Yade/trunk/py/wrapper/yadeWrapper.cpp >>> >>>-- >>>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 >> >> -- >> 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 > >-- >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 -- 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 #432848]: yade compiled installation in a redhat cluster
Question #432848 on Yade changed: https://answers.launchpad.net/yade/+question/432848 Status: Answered => Open hanzj is still having a problem: hello,flomine and all, thank you for your reply,It works,it can make install and finished well , but after install I can not use yade the error as follows: [luxy@ln1 bin]$ ./yade Welcome to Yade 2016.06a Traceback (most recent call last): File "./yade", line 129, in import yade File "/home/luxy/Yade/install/lib64/yade/py/yade/__init__.py", line 65, in import boot ImportError: /usr/lib64/libstdc++.so.6: version `GLIBCXX_3.4.15' not found (required by /home/luxy/Yade/install/lib64/yade/py/yade/boot.so) have you come across that? At 2017-01-19 18:57:52, "flomine" <question432...@answers.launchpad.net> wrote: >Question #432848 on Yade changed: >https://answers.launchpad.net/yade/+question/432848 > >Status: Open => Answered > >flomine proposed the following answer: >Hi Hanzj, >I had a similar issue on archlinux. >Try to had > #include >at the beginning of /home/luxy/Yade/trunk/py/wrapper/yadeWrapper.cpp > >-- >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 -- 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 #432848]: yade compiled installation in a redhat cluster
Question #432848 on Yade changed: https://answers.launchpad.net/yade/+question/432848 hanzj gave more information on the question: dear all: at the make stage, It came across the error as follows: can you help me? [ 98%] Built target _packSpheres In file included from /apps/lib/python/Python-2.7.2/lib/python2.7/site-packages/numpy/core/include/numpy/ndarraytypes.h:1781:0, from /apps/lib/python/Python-2.7.2/lib/python2.7/site-packages/numpy/core/include/numpy/ndarrayobject.h:18, from /home/luxy/Yade/trunk/py/_utils.hpp:14, from /home/luxy/Yade/trunk/py/_utils.cpp:1: /apps/lib/python/Python-2.7.2/lib/python2.7/site-packages/numpy/core/include/numpy/npy_1_7_deprecated_api.h:15:2: warning: #warning "Using deprecated NumPy API, disable it by " "#defining NPY_NO_DEPRECATED_API NPY_1_7_API_VERSION" [-Wcpp] /home/luxy/Yade/trunk/py/wrapper/yadeWrapper.cpp: In function 鈜oid termHandlerNormal(int)? /home/luxy/Yade/trunk/py/wrapper/yadeWrapper.cpp:474:73: error: 釹IGTERM?was not declared in this scope /home/luxy/Yade/trunk/py/wrapper/yadeWrapper.cpp:474:80: error: 鈘aise?was not declared in this scope /home/luxy/Yade/trunk/py/wrapper/yadeWrapper.cpp: In function 鈜oid termHandlerError(int)? /home/luxy/Yade/trunk/py/wrapper/yadeWrapper.cpp:475:71: error: 釹IGTERM?was not declared in this scope /home/luxy/Yade/trunk/py/wrapper/yadeWrapper.cpp:475:78: error: 鈘aise?was not declared in this scope /home/luxy/Yade/trunk/py/wrapper/yadeWrapper.cpp: In member function 鈜oid pyOmega::disableGdb()? /home/luxy/Yade/trunk/py/wrapper/yadeWrapper.cpp:731:10: error: 釹IGSEGV?was not declared in this scope /home/luxy/Yade/trunk/py/wrapper/yadeWrapper.cpp:731:18: error: 釹IG_DFL?was not declared in this scope /home/luxy/Yade/trunk/py/wrapper/yadeWrapper.cpp:731:25: error: 鈙ignal?was not declared in this scope /home/luxy/Yade/trunk/py/wrapper/yadeWrapper.cpp:732:10: error: 釹IGABRT?was not declared in this scope /home/luxy/Yade/trunk/py/wrapper/yadeWrapper.cpp: In member function 鈜oid pyOmega::exitNoBacktrace(int)? /home/luxy/Yade/trunk/py/wrapper/yadeWrapper.cpp:735:24: error: 釹IGSEGV?was not declared in this scope /home/luxy/Yade/trunk/py/wrapper/yadeWrapper.cpp:735:49: error: 鈙ignal?was not declared in this scope /home/luxy/Yade/trunk/py/wrapper/yadeWrapper.cpp:736:15: error: 釹IGSEGV?was not declared in this scope /home/luxy/Yade/trunk/py/wrapper/yadeWrapper.cpp:736:39: error: 鈙ignal?was not declared in this scope make[2]: *** [py/CMakeFiles/wrapper.dir/wrapper/yadeWrapper.cpp.o] Error 1 make[1]: *** [py/CMakeFiles/wrapper.dir/all] Error 2 make[1]: *** Waiting for unfinished jobs [ 99%] Linking CXX shared library lib64/_customConverters.so [ 99%] Built target _customConverters [ 99%] Linking CXX shared library lib64/_utils.so [ 99%] Built target _utils make: *** [all] Error 2 [luxy@ln1 build]$ make install [ 89%] Built target yade [ 90%] Built target boot [ 91%] Built target WeightedAverage2d [ 92%] Built target _customConverters [ 93%] Built target _packObb [ 94%] Built target _packPredicates [ 96%] Built target _packSpheres [ 97%] Built target _polyhedra_utils [ 98%] Built target _utils [ 99%] Building CXX object py/CMakeFiles/wrapper.dir/wrapper/yadeWrapper.cpp.o /home/luxy/Yade/trunk/py/wrapper/yadeWrapper.cpp: In function 鈜oid termHandlerNormal(int)? /home/luxy/Yade/trunk/py/wrapper/yadeWrapper.cpp:474:73: error: 釹IGTERM?was not declared in this scope /home/luxy/Yade/trunk/py/wrapper/yadeWrapper.cpp:474:80: error: 鈘aise?was not declared in this scope /home/luxy/Yade/trunk/py/wrapper/yadeWrapper.cpp: In function 鈜oid termHandlerError(int)? /home/luxy/Yade/trunk/py/wrapper/yadeWrapper.cpp:475:71: error: 釹IGTERM?was not declared in this scope /home/luxy/Yade/trunk/py/wrapper/yadeWrapper.cpp:475:78: error: 鈘aise?was not declared in this scope /home/luxy/Yade/trunk/py/wrapper/yadeWrapper.cpp: In member function 鈜oid pyOmega::disableGdb()? /home/luxy/Yade/trunk/py/wrapper/yadeWrapper.cpp:731:10: error: 釹IGSEGV?was not declared in this scope /home/luxy/Yade/trunk/py/wrapper/yadeWrapper.cpp:731:18: error: 釹IG_DFL?was not declared in this scope /home/luxy/Yade/trunk/py/wrapper/yadeWrapper.cpp:731:25: error: 鈙ignal?was not declared in this scope /home/luxy/Yade/trunk/py/wrapper/yadeWrapper.cpp:732:10: error: 釹IGABRT?was not declared in this scope /home/luxy/Yade/trunk/py/wrapper/yadeWrapper.cpp: In member function 鈜oid pyOmega::exitNoBacktrace(int)? /home/luxy/Yade/trunk/py/wrapper/yadeWrapper.cpp:735:24: error: 釹IGSEGV?was not declared in this scope /home/luxy/Yade/trunk/py/wrapper/yadeWrapper.cpp:735:49: error: 鈙ignal?was not declared in this scope /home/luxy/Yade/trunk/py/wrapper/yadeWrapper.cpp:736:15: error: 釹IGSEGV?was not declared in this scope /home/luxy/Yade/trunk/py/wrapper/yadeWrapper.cpp:736:39: error: 鈙ignal?was not declared in this scope make[2]: *** [py/CMakeFiles/wrapper.dir/wrapper/yadeWrapper.cpp.o] Error 1 make[1]
Re: [Yade-users] [Question #432848]: yade compiled installation in a redhat cluster
Question #432848 on Yade changed: https://answers.launchpad.net/yade/+question/432848 Status: Answered => Open hanzj is still having a problem: Hello,all, hello,Anton and Klaus Thoeni, Sorry for reply so late. I have tried to install the pre-required libraries as your recommendation, I am now facing the problem is the installation of minieigen. I have download the minieigen-0.5.3.tar.gz from http://eudoxos.github.io/minieigen and I tried to install it using the comand python setup.py install but (1) I came across the error: File "setup.py", line 23 libraries=['boost_python-py3%d'%sys.version_info[1] if py3k else 'boost_python'] ^ SyntaxError: invalid syntax (2)also ,I can not understand the command in the README.txt as follows: To compile by hand under Linux, run something like g++ -ansi src/miniEigen.cpp src/double-conversion/*.cc -o minieigen.so -shared -fPIC `pkg-config python --cflags` -lboost_python -I/usr/include/eigen3 and the whole README.txt as follows: This is miniEigen, small wrapper for the http://eigen.tuxfamily.org library. Home of this project is at http://www.launchpad.net/minieigen/. The code is licensed under the LGPLv3. The author is Václav Šmilauer <e...@doxos.eu>. Documentation is uploaded to http://eudoxos.github.io/minieigen. Run `python setup.py install` to build & install this module. You will need the boost_python library to be installed, and Eigen (in /usr/include/eigen3, or somewhere where the compiler finds it). Windows is experimentally supported, but paths must be tweaked in setup.py to match your system. Suggestions for a better way are welcome. To compile by hand under Linux, run something like g++ -ansi src/miniEigen.cpp src/double-conversion/*.cc -o minieigen.so -shared -fPIC `pkg-config python --cflags` -lboost_python -I/usr/include/eigen3 Enjoy. (3)If I am not going to install the minieigen, could I comply yade to install? must I install it? I have tried without it, but complied failed. Any suggestions? Thanks a lot. Han Zhijian At 2017-01-11 05:44:24, "Klaus Thoeni" <question432...@answers.launchpad.net> wrote: >Your question #432848 on Yade changed: >https://answers.launchpad.net/yade/+question/432848 > >Status: Open => Answered > >Klaus Thoeni proposed the following answer: >Hi, > >we have yade running on our RH cluster. The installation/compilation is >not as straight forward as for debian/ubuntu. As Anton mentioned you >need to find the RPM-packages for all pre-required libraries [1]. The >important thing here is that you have to check if the minimal required >version is available with yum. Sometimes it will not be the case hence >you cannot install it with yum but you need to download the sources and >compile the package/library yourself. And yes, the make process is >exactly the same using cmake [2]. Again, make sure you have at least >cmake version 2.8.11 installed. > >I cannot remember all steps but I strongly recommend you to only install >the packages you really need and compile yade with the corresponding >options. For example, I did not bother installing optional packages >(e.g., required for fluid coupling) and the graphical mode (e.g., use >cmake option -DENABLE_GUI=0). This should make things much easier. > >HTH >Klaus > >[1] https://yade-dem.org/doc/installation.html#prerequisites >[2] https://yade-dem.org/doc/installation.html#compilation > >-- >If this answers your question, please go to the following page to let us >know that it is solved: >https://answers.launchpad.net/yade/+question/432848/+confirm?answer_id=2 > >If you still need help, you can reply to this email or go to the >following page to enter your feedback: >https://answers.launchpad.net/yade/+question/432848 > >You received this question notification because you asked the 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 #432848]: yade compiled installation in a redhat cluster
Question #432848 on Yade changed: https://answers.launchpad.net/yade/+question/432848 Status: Answered => Open hanzj is still having a problem: Dear Anton Gladky: Thank you for your help. I will try that later. 发自我的 iPhone > 在 2017年1月10日，上午2:47，Anton Gladky <question432...@answers.launchpad.net> 写道： > > Your question #432848 on Yade changed: > https://answers.launchpad.net/yade/+question/432848 > >Status: Open => Answered > > Anton Gladky proposed the following answer: > Hi, > > you just need to find the same RPM-packages. Their name > can differ from DEB-names. After that you should follow > instructions from "install" section of documentation. > > If I remember correctly, somebody used Yade on similar > platform. You can search in questions. > > Best regards > > Anton > > -- > If this answers your question, please go to the following page to let us > know that it is solved: > https://answers.launchpad.net/yade/+question/432848/+confirm?answer_id=0 > > If you still need help, you can reply to this email or go to the > following page to enter your feedback: > https://answers.launchpad.net/yade/+question/432848 > > You received this question notification because you asked the 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 #432848]: yade compiled installation in a redhat cluster
New question #432848 on Yade: https://answers.launchpad.net/yade/+question/432848 Hello,all: I want to compiled the yade trunk version( yade-2016.06a.tar.gz) to install in a redhat cluster, whose version is redhat AS 5.5 server. now my problem is : 1)how can i install the prerequisites with "yum" command not with apt-get command( because the school's system can not use apt-get command)? or i can just compile to install one by one? is there any reference for me to refer to ? 2)Supposed that i have installed the prerequisites, how can i install the yade version?i have ever compiled it with cmake, make, make install to install it in ubuntu system successfully, but i am wondering if there exists difference to install in redhat cluster. anyone has ever experienced kind of thing? sincerely appreciate your help.Thank you. Best regards, han zhijian -- 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 #404520]: hollow glass sphere modeling using pfacet as a filler in cement paste
Question #404520 on Yade changed: https://answers.launchpad.net/yade/+question/404520 Status: Answered => Open hanzj is still having a problem: dear prof.Bruno: Thank you for your reply, and I understand what you mean mostly.sorry, I still need your help as follows: first,I have searched for what you recommend "assign the adhesion to the different group", for example ,the question "https://answers.launchpad.net/yade/+question/257929"[1] .is that what you meant? and I would try to use it then and put my simple scripts here. another question, if i am going to model the nano indentation process, and i would like to use PFacet to model the hollow glass sphere, just not take into account the splitting of the PFacet, it remains elastic or even plastic state. and i use a spherical indenter to indent the composite made of glass sphere and cement paste. I want to use DEM to model the nano indentation because my material tends to be a particular problem, and I am going to model the loading and unloading process and plot the diagram between the repulse force acting on the spherical intender and the indenter displacement. there are other authors use FEM to model the indentation like http://www.sciencedirect.com/science/article/pii/S0040609016302966[2], are there any other authors using DEM method or even YADE to do that? how to calculate the repulse force acting on the indenter? The bonds between the sphere and cement paste might be week enough to break down first and i have to calibrate the adhesion between tw o different materials, right? any ideas or recommendations? If I have any logical problem and state that not correct, could you please let me know, thank you. looking forwards to your reply. best regards hanzj "https://answers.launchpad.net/yade/+question/257929"[1] http://www.sciencedirect.com/science/article/pii/S0040609016302966[2] -- 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 #404520]: hollow glass sphere modeling using pfacet as a filler in cement paste
New question #404520 on Yade: https://answers.launchpad.net/yade/+question/404520 Dear all, I am new in YADE， I have installed YADE from source code and learned the basic knowledge about YADE. After reading the paper of prof.Bruno Chareyre, named ''Modelling of deformable structures in the general framework of the discrete element method'', the job of Bruno's motivates me a lot. I am now doing the simulation as follows : Hollow glass sphere, whose d(0.5) is about 40μm， acts as a filler in the cement paste.the cement's d(0.5) is about 20μm.The fresh cement paste is made up of cement and water, and the ratio of water to cement is ranging from certain values, for example,0.3,0.4,0.5. after the cement paste formed, the hollow glass spheres are mixed into the paste. After the cement paste hardened， there exist bonds between the cement paste and the hollow glass sphere. I was thinking about regard it as a two-phase system, so the interfacial properties between hollow glass spheres and cement paste would play a key role. and I was going to use a REV （a cube whose size supposes to be 100μm），which first contains one hollow glass sphere, whose radii suppose to be 40μm and cement paste around it. any ideas about how to decide the size of the REV cube? and then， the cube would be uniaxial compressed. So,question 1: I was wondering if I can use the pfacet to modelling the hollow glass sphere, whose properties are more similar with a hollow deformable shell but can break down in a brittle mode. To model its failure mode, which material do you recommend? whether the cohesive friction mat or cpm mat? can i use them? question 2 : the cement paste i was thinking about modelling it using spheres and cohesive-friction mat. can I? and there exists a bond between the glass sphere and the cement paste. so if i can use the pfacet to model the glass sphere,I have to use the sphere-pfacet geometry like Ig2_Sphere_PFacet_ScGridCoGeom(),right? question 3: whether i can use 'matchMaker' to define the specific cohesive force or something else determine the interfacial properties between the pfacet and the spheres? i would appreciate it that if you can recommend me something to learn about this. Looking forwards to your advise and thanks a lot. best regards hanzj -- 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
