Compression after impact modeling of damage tolerant composite laminates


Baker, N. and Butler, R., 2010. Compression after impact modeling of damage tolerant composite laminates. Reston, VA.: American Institute of Aeronautics and Astronautics.

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An existing compression after impact (CAI) model was used as the fitness function in an optimization routine to produce a damage tolerance optimized composite layup. This laminate was tested in a CAI strength experiment, alongside a baseline quasi-isotropic layup. Although a 13% improvement in CAI strength was observed, the analytical model was shown to overpredict the strength of the damage tolerance optimized laminate. It was found that the optimization process eliminated localized failure due to Mode-I buckling-induced propagation, and that the impacted laminate failed instead through globally driven, in-plane effects.


Item Type Conference or Workshop Items (UNSPECIFIED)
CreatorsBaker, N.and Butler, R.
DepartmentsFaculty of Engineering & Design > Mechanical Engineering
Research CentresAerospace Engineering Research Centre
ID Code27652
Additional InformationPaper no. 2010-2868 51st AIAA/ASME/ASCE/AHS/ASC Structures, Structural Dynamics and Materials Conference. 12-15 April 2010. Orlando, FL, United States.


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