Table 1: Comparison of boundary conditions of the four models analyzed in the present article.

Boundary conditions governing shear lag model [12]

(i) Traction free crack surfaces
(ii) Interlaminar shear stress symmetry condition

Boundary conditions governing variational model [14]

(i) Symmetry
(ii) Traction continuity
(iii) Traction-free end
(iv) Traction-free crack surfaces

Boundary conditions governing McCartney model [18]

(i) Perfect interlaminar bonding
(ii) Stress-free external surface of outer plies
(iii) Symmetry about -axis
(iv) Symmetry about -axis
(v) Stress-free crack surface
(vi) Bridging outer plies

Boundary conditions governing SDM model [25]

(i) Symmetry about midplane
(ii) Displacement condition at right face
(iii) Fixture at left face