{"id":45687,"date":"2020-07-01T07:55:27","date_gmt":"2020-07-01T07:55:27","guid":{"rendered":"\/forum\/forums\/topic\/concrete-material-model\/"},"modified":"2023-12-01T03:22:07","modified_gmt":"2023-12-01T03:22:07","slug":"concrete-material-model","status":"closed","type":"topic","link":"https:\/\/innovationspace.ansys.com\/forum\/forums\/topic\/concrete-material-model\/","title":{"rendered":"Concrete Material Model"},"content":{"rendered":"

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Dear all, <\/p>\n

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I have used so many concrete material models like TB,concr,matid to TB,concr,matid,DP etc and from the old legacy element to new technology unfortunately non of these responds as needed. the closest response is from the last model i.e. TB,concr,matid with MISO points. <\/p>\n

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Can someone please advise me if I am making the right approach of testing all these materails models and elements?<\/p>\n

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The material models are enlised below. Some of them I have taken from ansys help sys examples and some from Mr. Mirghani posts in the student commnunity:<\/p>\n

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ET,MATID,CPT215 Coupled nodes with Rebars in all directions<\/p>\n

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E=20000, v=0.2  <\/span>Fuc=31.6  <\/span>Fbc=36.34  <\/span>Fut=3 Rt=1 D=4e4 Scv=-35 R=2 Yt0=0 Yc0=2e-5 Bt=3000 Bc=2000 c=1600 m=2.5<\/p>\n

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MP,ex,1,E<\/p>\n

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MP,NUXY,1,v<\/p>\n

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TB,MPLA,1,,,DPC<\/p>\n

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TBDATA,1,Fuc,Fbc,Fut,Rt,D,SCV<\/p>\n

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TBDATA,7,R,Yt0,Yc0,Bt,Bc<\/p>\n

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TB,MPLA,1,,,NLOCAL<\/p>\n

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TBDATA,1,c,m<\/p>\n

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ET,MATID,185                    ! Define elements as SOLID185<\/p>\n

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MP,EX,MATID,29100           ! Define Elasticity Modulus<\/p>\n

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MP,NUXY,MATID,0.2           ! Define Poisson’s ratio     <\/p>\n

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TB,MPLANE,MATID,,6        ! Define the microplane model parameters<\/p>\n

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tbdata,1,0.75,0.75,0.208,6.109e-05,0.512,98    !k0,k1,k2,α_mic, β_mic, beta_mic<\/p>\n

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TBTEMP,22 <\/p>\n

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ET,MATID,185<\/p>\n

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Drucker Prager Concrete Model with Dilitancy Parameters<\/p>\n

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! ELASTIC CONSTANTS<\/p>\n

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MP,EX,MATID,20.0E9<\/p>\n

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MP,NUXY,MATID,0.2<\/p>\n

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! Base Drucker-Prager concrete<\/p>\n

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Rc=30.0E6        ! uniaxial compressive strength<\/p>\n

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Rt=3.0E6         ! uniaxial tensile strength<\/p>\n

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Rb=36.0E6        ! biaxial compressive strength<\/p>\n

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delta_t=0.25 ! dilatancy factor tension<\/p>\n

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delta_c=1.0  ! dilatancy factor compression<\/p>\n

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! Linear hardening\/softening<\/p>\n

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kappa_cm=0.0025-Rc\/20.0E9<\/p>\n

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kappa_cr=0.0025<\/p>\n

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omega_ci=0.33<\/p>\n

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omega_cr=0.1<\/p>\n

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kappa_tr=0.0005<\/p>\n

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omega_tr=0.2<\/p>\n

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TB,CONCR,matid,,,DP<\/p>\n

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TBDATA,matid,Rc,Rt,Rb<\/p>\n

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TB,CONCR,matid,,,DILA<\/p>\n

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TBDATA,matid,delta_t,delta_c<\/p>\n

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TB,CONCR,matid,,,HSD6<\/p>\n

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TBDATA,matid,kappa_cm,kappa_cr,omega_ci,omega_cr,kappa_tr,omega_tr <\/p>\n

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 continued…..<\/p>\n","protected":false},"template":"","class_list":["post-45687","topic","type-topic","status-closed","hentry"],"aioseo_notices":[],"aioseo_head":"\n\t\t\n\t\n\t\n\t\n\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t