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Please use this identifier to cite or link to this item: http://hdl.handle.net/1807/32273

Title: Modeling Damage and Damage Evolution in Periodic Cellular Sandwich Panels
Authors: Ogundipe, Collins
Advisor: Steeves, Craig A.
Department: Aerospace Science and Engineering
Keywords: multifuctinal structures, truss core, macroscopic strength, failure surface, damaged state
Issue Date: 21-Mar-2012
Abstract: Among the light bending structures currently available, truss core panels are one of the most efficient when properly designed. The proper selection of the truss core lattice allows the incorporation of additional functionality. To exploit the multi-functional advantages of truss core sandwich structures, it is crucial to understand how the materials survive in challenging environments. In this research, the strengths of truss core panels have been predicted. Numerical calculations and experiments were carried out to validate the predictions. The effects of damage and damage propagation on the overall strength of the panel were also addressed. The strength and failure surfaces of arrays of partially damaged truss core unit cells were calculated under shear and axial loading. The results highlight the modes and trends of damage propagation in truss core panel, and the estimated damaged strength. Experiments were also performed to validate the damaged strength.
URI: http://hdl.handle.net/1807/32273
Appears in Collections:Master

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