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about the multiscale aggregating method (MAD) of Prof. Belytschko

Submitted by phunguyen on

Hello all

I have spent a large amount of time trying to undertstand the multiscale aggregating method (MAD) of Prof. Belytschko. Unfortunately, I still can not compltely understand the method. 

If there is anyone here in the forum already gets clear about the method, please help me.

 Phu

Using ABAQUS subroutine (UMAT,VUMAT) to modeling FGM plate

Submitted by mahmoud.k.e on

Hello every body

I am working on modeling FGM plate in abaqus6.8,i know that it's possible to modeling FGP by using UMAT subroutine for definig variation of material's properties,but i don't know how can i use this subroutine,could you tell me please?