StressCheck Tutorial: Stepped Ply Bonded Lap Joint (Extruded)
Abstract: Parametric geometry creation for a stepped ply bonded lap joint configuration. Generation of a quad-mesh (automesh of quadrilateral elements), definition and assignment of laminate orthotropic and adhesive (bond) material properties, and then the conversion of the quad-mesh to 3D hexahedra by selecting the Extrude reference.
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“A screening of existent commercial and non-commercial tools was carried out in respect to their fracture mechanics capabilities, their design abilities, implementation as well as their complexity. Although, there are many software possibilities, only those within the reach of the author were evaluated. This resulted in the selection of the commercial tool StressCheck®. The assessment of crack propagation on compact tension and two stringer specimens governed by the Paris and Forman regimes was satisfactory compared with experimental results using the material data from simple standard specimens.”
Lloren Llopart Prieto (EADS)Doctoral Thesis, "Modelling and analysis of crack turning on aeronautical structures"