January 21, 2023 at 8:47 amRiccardo PetrelliSubscriber
hello, I'm using an ekill script that kills the elements that exceed a certain strain and stress threshold in particular 0.035 and 1900 Mpa in a compression test for lattice structures in Ti6Al4-V, I want to reproduce the decreasing part of the obtained stress strain curve in the laboratory. Below I am attaching the graph of the force and you can see the decreasing curves, which are due to the killing of the elements. Can anyone tell me how to increase the stiffness of the killed elements? because by default it is set to 0, I would like to reduce it perhaps by half. Thank you. I am attaching my script for Ekill
SCRIPT EKILL :total_steps=20subst_int=3subst_max=50subst_min=3neqit, 1500!numero massimo di iterazioni di default è impostato su 15*do,i,1,total_steps/goprtime_step=i/total_stepstime,time_stepnsubst,subst_int,subst_max,subst_minoutres,all,allesel,allsolvefinish/post1set,last! esel,s,live! *get,live_count%i%,elem,0,count! esel,inve,live! *get,dead_count%i%,elem,0,countesel,alletable,stress,s,eqvesel,s,etab,stress,ARG1! *get,stress_ecount%i%,elem,0,countcm,kill_stress%i%,elemcmsel,s,kill_stress%i%,elem! *get,stress_ecount%i%,elem,0,countesel,alletable,strain,epto,eqvesel,s,etab,strain,ARG2! *get,strain_ecount%i%,elem,0,countcm,kill_strain%i%,elemcmsel,s,kill_strain%i%,elem! *get,strain_ecount%i%,elem,0,countallselcmwrite,kill_list,cmparsav,allfinish/soluantype,,restartparres! *status/input,kill_list,cm*do,k,1,iekill,kill_stress%k%ekill,kill_strain%k%! *status*enddo*enddofinishThis is the mesh:
January 23, 2023 at 10:28 amErik KostsonAnsys Employee
Perhaps seacrh the internet for convergence and ansys, e.g.,:
Hope this helps
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