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Experimental study of the influence of glass microspheres on flexural response of honeycomb structures reinforced with syntactic foams

Abstract:

This paper studies the bending behavior of honeycomb structures by varying their weight through the introduction of glass microspheres. For this purpose, four different types of syntactic foam specimens were manufactured, varying the percentage by volume of glass microspheres between 20%, 30% and 40%. Afterwards, three-point bending tests were performed on each of these groups of specimens based on ASTM D7264/D7264M-15, thus obtaining data that allowed determining mechanical behavior and comparing it with material without glass microspheres. The optimum positive influence of microspheres over specific flexural strength was found at 30% of addition of glass bubbles. Additionally, results of the structures under impact gravity test confirm that 30% is a good proportion for these structures.