· The
elastic properties of a uniaxial lamina are anisotropic.
· When
loaded along the fiber direction with a force P1, the fibers
and the matrix experience the same strain (an isostrain configuration).
· Loading
normal to the fibers with a force P2 creates an isostress situation
for the fibers and the matrix.
From:
Hull, "Introduction to Composite Materials," Cambridge (1992)