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Get failure criteria using ETABLE

Get failure criteria using ETABLE

Get failure criteria using ETABLE

(OP)
Hi everyone

I am trying to take the values of the Tsai-Wu failure criteria of a laminate using the ETABLE, ESORT and *GET command. I am using SHELL99 and have set all the keyoptions correctly so it saves all the information needed. The code looks like this:

CMSEL,S,PATCH1 !Select area of interest
ESLA,S !Select attached elements

N=1
i=1
NLAYER=1
LAYER,i
num_m=4*NLAYER+8+15*(N-1)+2 !i have tried using ...+1 also

LAYER,i !Choose layer for results
RSYS,LSYS !Set the RSYS to the layre coord sys
ETABLE,FC_MAX,NMISC,num_m !Create table with Max FC
ESORT,ETAB,FC_MAX,,, !Sort table in ascending order
*GET,FC_MAX,SORT,,MAX !Get max value of sorted table
*GET,FC_MAX_ELEM,SORT,,IMAX !Get elem number where max occur

The expression of num_m is as given in SHELL99 literature...

The problem is that it saves a table full of zeros... I have managed to take results but only for one layer and not for all. Moreover I am not sure which failure criteria the results refer to as I am using the FC command to declare it instead of the TB.

Anyone got any idea of how I could do this? Essentially all I want is to find a (fast) way to know the maximum failure criteria value in this set of elements so I can decided on a thickness.

Thanks a lot in advance.

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