{"id":275235,"date":"2023-03-16T22:53:27","date_gmt":"2023-03-16T22:53:27","guid":{"rendered":"\/forum\/forums\/topic\/cast-iron-plasticity-and-crushable-foam-material-model-help\/"},"modified":"2023-03-16T22:53:27","modified_gmt":"2023-03-16T22:53:27","slug":"cast-iron-plasticity-and-crushable-foam-material-model-help","status":"closed","type":"topic","link":"https:\/\/innovationspace.ansys.com\/forum\/forums\/topic\/cast-iron-plasticity-and-crushable-foam-material-model-help\/","title":{"rendered":"Cast Iron Plasticity and Crushable Foam Material Model Help"},"content":{"rendered":"

Hello, <\/p>\n

I am creating a simulation where I’d like to use either the cast iron plasticity or crushable foam material models. In these simulations, there are different sets of elements that all use the same material model but with different parameters. I’m having an issue with both models where if I have more than one element set, I get an error “For material 2, TB,,CAST,,, ISOTROPIC table requires 1 parameter. 2 have been defined” or “TB,CFOAM,,,YIELD has already been defined. Please delete existing table to overwrite.” If I’m only using one material set, this issue does not occur.<\/p>\n

FYI, I am coding this up into an ANSYS input deck using APDL. Below is the part of the code I am referencing.<\/p>\n

For Cast Iron:<\/p>\n

ET,1,SOLID185,,
!
!
!
MP,EX,1,1.050e+02
MP,DENS,1,5.000e-02
MP,PRXY,1,0.381000E+00
!
!
MAT,1
!
TB,CAST,1,,,ISOTROPIC
TBDATA,1,0.3
!
!
TB,UNIAXIAL,1,1,3,TENSION
TBPT,,0,0
TBPT,,4.762e-03,5.000e-01
TBPT,,2.000e+01,5.000e-01
!
!
TB,UNIAXIAL,1,1,3,COMPRESSION
TBPT,,0,0
TBPT,,9.524e-04,1.000e-01
TBPT,,2.000e+01,1.000e-01<\/p>\n

then the list of elements included in this material set, then defining second material set<\/p>\n

ET,2,SOLID185,,
!
!
!
MP,EX,2,3.150e+02
MP,DENS,2,1.500e-01
MP,PRXY,2,0.381000E+00
!
!
MAT,2
!
TB,CAST,2,,,ISOTROPIC
TBDATA,2,0.3
!
!
TB,UNIAXIAL,2,1,3,TENSION
TBPT,,0,0
TBPT,,4.762e-03,1.500e+00
TBPT,,2.000e+01,1.500e+00
!
!
TB,UNIAXIAL,2,1,3,COMPRESSION
TBPT,,0,0
TBPT,,4.889e-03,1.540e+00
TBPT,,2.000e+01,1.540e+00<\/p>\n

then the elements in the material set and so on.<\/p>\n

 <\/p>\n

Is there a reason I’m getting these errors?<\/p>\n

 <\/p>\n

Thank you<\/p>\n

 <\/p>\n

 <\/p>\n","protected":false},"template":"","class_list":["post-275235","topic","type-topic","status-closed","hentry"],"aioseo_notices":[],"acf":[],"custom_fields":[{"0":{"_bbp_subscription":["279234","88","14"],"_bbp_author_ip":["23.77.218.237"]," _bbp_last_reply_id":["0"]," _bbp_likes_count":["0"],"_btv_view_count":["772"],"_bbp_topic_status":["unanswered"],"_bbp_status":["publish"],"_bbp_topic_id":["275235"],"_bbp_forum_id":["27791"],"_bbp_engagement":["14","88","279234"],"_bbp_voice_count":["3"],"_bbp_reply_count":["6"],"_bbp_last_reply_id":["277478"],"_bbp_last_active_id":["277478"],"_bbp_last_active_time":["2023-03-31 23:24:46"]},"test":"ehennin2uccs-edu"}],"_links":{"self":[{"href":"https:\/\/innovationspace.ansys.com\/forum\/wp-json\/wp\/v2\/topics\/275235","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/innovationspace.ansys.com\/forum\/wp-json\/wp\/v2\/topics"}],"about":[{"href":"https:\/\/innovationspace.ansys.com\/forum\/wp-json\/wp\/v2\/types\/topic"}],"version-history":[{"count":0,"href":"https:\/\/innovationspace.ansys.com\/forum\/wp-json\/wp\/v2\/topics\/275235\/revisions"}],"wp:attachment":[{"href":"https:\/\/innovationspace.ansys.com\/forum\/wp-json\/wp\/v2\/media?parent=275235"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}