Boundary-Layer Effects in Composite Laminates: Free-Edge Stress Singularities. Part 6.
ILLINOIS UNIV AT URBANA DEPT OF THEORETICAL AND APPLIED MECHANICS
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A rigorous mathematical model has been obtained for the boundary-layer free-edge stress singularity in angleplied and crossplied fiber composite laminates. The solution was obtained using the previously developed method under the grant consisting of complex-variable stress function potentials and unique eigenfunction expansions. The required order of the boundary-layer stress singularity is determined by solving the transcendental characteristic equation obtained from the homogeneous solution of the partial differential equations. Numerical results obtained show that the boundary-layer stress singularity depends only upon material elastic constants and fiber orientation of the adjacent plies. For angleplied and crossplied laminates the order of the singularity is weak in general. MM
- Laminates and Composite Materials