How to create an array by keeping material properties in ABAQUS

Dear friends,

I have a problem building a model which has alternative material properties. Suppose you have a series of large number of fibers within a matrix in both horizontal and vertical direction, but alternatively they have the same material properties. So I partitioned the matrix based on the fibers but alternatively material assignment for each fiber is cumbersome. Please let me know if there is an easier way to build such model.

Thank you,

I cannot think of a simple way. Perhaps you can use a python script to drive the assignment.

-Jorgen