General Mechanical

General Mechanical

Unable to view microplane damage in workbench

    • vaibhavtaranekar
      Subscriber
      Hello everyone, I am trying to view concrete microplane damage using microplane model in ansys workbench R2 2020, But the damage is only available for 1st step of solution, whenever i try to plot other steps, the solution information Error The requested MPDP data is not available. . I am using following commands n/SHOW,PNGnESEL,ALLnSet,,lastn/VIEW,1,1,1,1nPLNSOL,MPDP,TOTAnPLNSOL,MPDP,COMPnPLNSOL,MPDP,TENSnI have also enabled outres,all,all in element command menu.nnKindly help me out.n
    • John Doyle
      Ansys Employee
      I tested your post processing script in MAPDL on simple test input and I am able to extract these results.nCan you compare your ds.dat file in your WB-Mechanical working directory to the test script below?nfinin/clearn/prep7 net,1,solid185n!MaterialnE1=36500e6ttnv=0.2tttnfc = 26e6ttnft = 2.27e6ttn!* Material Propertiesnmp,ex,1,E1 nmp,nuxy,1,v n ! nk=fc/ft*1.17tt ttnk0=(k-1)/(2*k*(1-2*v))nk1=k0nk2=3/k/(1+v)/(1+v)neta = ft/E1n!Microplane Material Modelntb,mpla,1,1,6,t ttntbdata,1,k0,k1,k2 ntbdata,4,eta,0.96,100 t tntype,1nmat,1nN,1, 0.0, 0.0, 0.0nN,2, 0.0, 1.0, 0.0nN,3, 1.0, 0.0, 0.0nN,4, 1.0, 1.0, 0.0nN,5, 0.0, 0.0, 1.0nN,6, 0.0, 1.0, 1.0nN,7, 1.0, 0.0, 1.0nN,8, 1.0, 1.0, 1.0nE,1,5,7,3,2,6,8,4nnsel,s,loc,x,0nd,all,uxnnsel,s,loc,y,0nd,all,uynnsel,s,loc,z,0nd,all,uznallselnnsel,s,loc,x,1nd,all,ux,0.004tttttnallselnfinin/solunantype,0nautots,onnnsubst,10,100,10noutres,all,allnsolvenfinin/post1nset,,lastnPLNSOL,MPDP,TOTAnPLNSOL,MPDP,COMPnPLNSOL,MPDP,TENSn n
    • vaibhavtaranekar
      Subscriber
      Array Results can be viewed only for 1st step, if we have multiple steps then the results can't be obtained for 2,3,4...n steps.ncan you also tell me from where did you obtain this relation? k=fc/ft*1.17nI am trying to calibrate a M-25 concrete by kent-park using microplane  model but unable to set the yield strain properly, can you tell me how to calibrate the k0,k1,k2 parameters properly? n
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