ABAQUS periodic

About periodic BC for large mesh in ABAQUS

Submitted by Bowen Liang on Mon, 11/20/2017 - 20:16

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Hi all,

I'm using ABAQUS-2016 to run a parallel simulation, and I met a problem for assigning periodic BC in large mesh size. I want to make four nodes to be periodic with each other. Normally, I give the node pair in the equation option as:
*Equation
2
nset_1, 2, 1.
nset_2, 2, -1.
*Equation
2
nset_1, 2, 1.
nset_3, 2, -1.
*Equation
2
nset_2, 2, 1.
nset_4, 2, -1.

Defining perioidc BC for 1 element elastic model for Biaxial pull in ABAQUS

Submitted by tarkes on Sun, 09/18/2016 - 08:43

representative volume element (RVE)

For simplicity in understanding Perioidic BC in ABAQUS, I am trying to implement in a single element elastic model.

Material is elastic. There are two reference points defined Refpoint 1 for x-direction pull and Refpoint 2 for y-direction pull. Please find the attached picture for clarity in the model.

I have defined the equations for PBC in ABAQUS as below:

x1-x2+Refpoint1=0

y1-y2+Refpoint1=0

x3-x4+Refpoint1=0

y3-y4+Refpoint1=0

x2-x3+Refpoint2=0

y2-y3+Refpoint2=0

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