Abstract
In the present paper the boundary finite-element method is presented as a highly efficient technique for the numerical investigation of the free-edge stresses around a circular hole in laminates. In this method, as in the boundary element method, only the boundary needs to be discretized, whereas the element formulation in essence is finite-element based. The surface discretization provides a high numerical efficiency and requires less computation time compared to finite-element analyses. Numerical results for the concentration of interlaminar stresses at holes in composite laminates show a very good agreement with comparative finite-element calculations.
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Lindemann, J., Becker, W. Free-Edge Stresses around Holes in Laminates by the Boundary Finite-Element Method. Mechanics of Composite Materials 38, 407–416 (2002). https://doi.org/10.1023/A:1020930125415
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DOI: https://doi.org/10.1023/A:1020930125415