unit cell model

Hello Everybody,

I have some problem, i use 3D unit cell model for the calculation of stress-strain curve of the soft plastic matrix with rigid inclusion. after calculation i take the reaction force, devived it into cross -section of ma specimen=this is my stress, and strain i obtain by deviding the displacement into he initial length of the specimen. nevwrtheless i think it is necessary to use some homogenization scheme to obtain the stress-strain response of the material. Could you please help me what should i do?

Best regards

ABAgirl