[Wapetit]

ANSYS APDL

I am trying to find the max inverse Tsai-Wu Failure Criteria in a composite section, in a specific layer on the bottom of the shell.



When I plot the nodal solu of layer 1 bottom shell I get a max Tsai-Wu FC of 0.26, but when I use a macro I wrote I get a max Tsai-Wu FC of 0.49 on a node in a completely different part of the section (for layer 1 bottom shell too). What is causing this difference? Is it due to ANSYS showing the average nodal results when plotting?



My macro for reference :



/post1

*del,all

allsel

cmsel,s,a_fuse

allsel,below,area

esel,r,sec,,1

allsel,below,elem

eplot

layer,1

shell,bot

*VGET,listn,node,,nlist

*GET,listdim,parm,listn,dim,1

*DIM,listtw,array,listdim

*do,i,1,listdim,1

*GET, TW_FC_max%i%, node,listn(i),s,twsr

listtw(i)=TW_FC_max%i%

*enddo

*VSCFUN,FC_max,max,listtw

*VSCFUN,row_of_FC_max,lmax,listtw

n_of_FC_max(row_of_FC_max)