Abstract
An all-composite corrugated hybrid structure was proposed. The Nomex honeycomb was filled to enhance carbon fiber reinforced polymer (CFRP) corrugated sandwich against mono-corrugation flexural collapse. Three-point bending behaviors of the honeycomb enhanced corrugated sandwich (HECS), taking account of the effects of honeycomb density, loading position, and honeycomb proportion, were investigated. The bearing capacity of the HECS is greatly increased. The mutual constraint between the web and honeycomb exhibits different damage modes from those of corrugated and honeycomb sandwich. The peak load and elastic stiffness of the HECS are 1.37 times and 1.4 times higher than that of unenhanced corrugated sandwich, respectively. Numerical and analytical models were able to consistently predict the deflection and stiffness of the HECS.
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