Learning Forum

[bhanu34]

Hi

Does anyone know how to get mat ID of material with certain young's modulus or Poisson's ratio through APDL commands ?

[sathya]

Hi Bhanu,

I guess there must be command using *GET.

In the meantime , you can use MPLIST,ALL to list all material data defined as a text file.

Then just search for the corresponding magnitudes of EX or PRXY and find the mat ID associated with the data.

 

[bhanu34]

Hi Sathya

Can you please be little more elaborate on *GET command?

Thanks

[jpasquerell]

do a *get of the maximum material id number into a parameter- see the help for *GET with the entity of MAT

create a do loop from 1 to the maximum material id number parameter

*get of EX for the do loop counter number at the desired temperature - see the help for *GET with the entity of MPLAB  (MPLAB can be any of the actual material property labels including PRXY for Poisson's ratio).

*IF the EX parameter matches the desired then

set the output mat id to be the current loop parameter value then *EXIT so no more loops

*ENDIF

*ENDDO

 

[sathya]

Hi ,

I am using the following syntax but it is not able to read for discontinuous mat id like 1,50,,etc.
Can you correct me?

*ask,ym,Enter the magnitude of EX in system units

*get,matmax,MAT,0,num,max

*do,i,1,matmax,1

*get,prop,ex,i,,,

*if,YM,eq,PROP,THEN

mplis,i

*Exit

*endif

*ENDDO

[jpasquerell]

I ran you commands and they worked for me but you can add another *if level to not test prop vs YM when there is no EX for a mat id as prop is an undefined parameter which has a value of 2**(-100) .  

 

 

!*ask,ym,Enter the magnitude of EX in system units

*get,matmax,MAT,0,num,max

 

*do,i,1,matmax,1

*get,prop,ex,i,,,

 

*if,prop,ne,2**(-100),THEN

*if,YM,eq,PROP,THEN

 

mplis,i

 

*Exit

 

*endif

*endif

*ENDDO