{"id":250006,"date":"2023-02-15T12:43:03","date_gmt":"2023-02-15T12:43:03","guid":{"rendered":"\/forum\/forums\/topic\/am-process-with-ealive-and-restart-leads-to-sigsegv-error\/"},"modified":"2023-03-24T17:28:35","modified_gmt":"2023-03-24T17:28:35","slug":"am-process-with-ealive-and-restart-leads-to-sigsegv-error","status":"closed","type":"topic","link":"https:\/\/innovationspace.ansys.com\/forum\/forums\/topic\/am-process-with-ealive-and-restart-leads-to-sigsegv-error\/","title":{"rendered":"AM process with ealive and restart leads to sig$segv error"},"content":{"rendered":"

Hello,<\/p>\n

I’m facing some troubles with a AM simulation.<\/p>\n

The Modell is shown below and consists of a heated base plate and a circular extruded volume<\/span><\/p>\n

\"\"<\/a><\/p>\n

The script of the AM process with ekill and subsequent ealive so that a volume is constantly generated is not difficult. My problem is an embedded restart analysis. I have to enter \/post1 in every substep and create a component that includes all contact elements (targe169-conta178) for further processing.
<\/span><\/p>\n

The component should be used to apply convection bc the nodes on the base plate are not covered by extruded material<\/span>.<\/p>\n

The APDL snippet is this:<\/span><\/p>\n

tintp,,,,1.0
lnsrch,on
nropt,full
thopt,full<\/p>\n

…<\/p>\n

*do,i,1,k,1
\/GOPR
rescontrol,define,2,k 
 
  cmsel,s,path,node
  cm,Tload,node
  ddele,Tload,temp
  esel,…
  cm,alive,elem
  ealive,alive
 
  cmsel,s,path,node  
  nsel,…
  cm,load,node<\/p>\n

  D,load,temp,TL
  
  nsel,…
  cmsel,…
  cmsel,…
  cm,external,node
  sfdele,external,conv
  
  *DIM,Rad_Conv,TABLE,7,15,1,,,,11
  …
  sf,external,conv,%Rad_Conv%,Talpha
  
  allsel,all
  outres,all,all<\/p>\n

  Time,…
  solve <\/p>\n

  finish
  \/post1<\/span>
  \/GOPR<\/span>
  set,last<\/span><\/p>\n

  esel,s,enam,,169,178<\/span>
  nsle,s,active<\/span>
  !etab,contact_elem,nmis,41<\/span>
  cm,interface_nodes_bed_contact,node<\/span><\/p>\n

  finish<\/span>
  <\/span>
  \/solu<\/span>
  \/GOPR<\/span>
  nropt,full<\/span>
  thopt,full<\/span>
  antype,,rest<\/span><\/p>\n

  nsel,…<\/span>
  cmsel,…<\/span>
  cmsel,…<\/span>
  cm,bed_ring_nodes_conv,node<\/span><\/p>\n

  sfdele,bed_ring_nodes_conv,conv<\/span>
  sf,bed_ring_nodes_conv,conv,hc,Talpha<\/span><\/p>\n

*enddo<\/p>\n

Unfortunately, the simulation is crashing in the first substep of the 2nd<\/sup> load step (1st<\/sup> load step is only for bed heating). The script without \/post1 and restart is working just fine.<\/span><\/p>\n

The sig$segv is crashing the simulation.<\/span><\/p>\n

I guess it has something do to with the database because of all elements of the AM path death and subsequently activated (via ealive). <\/span><\/p>\n

Some information is missing regarding the active elements.<\/span><\/p>\n

\"\"<\/a><\/p>\n

Maybe someone has a clue about how to fix this problem<\/span><\/p>\n

 <\/p>\n

With Best Regards<\/span><\/p>\n

John Miller<\/span><\/p>\n","protected":false},"template":"","class_list":["post-250006","topic","type-topic","status-closed","hentry","topic-tag-post1-1","topic-tag-apdl","topic-tag-apdl-code-in-workbench","topic-tag-restart"],"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\n\t\t\n\t\t\n\t\t