<![CDATA[This study aims to determine the effect of varying bamboo cell wall thicknesses on the impact strength of sandwich composites featuring a honeycomb core structure. The bamboo cell wall thickness variations used were 1 mm, 1.5 mm, and 2 mm. Testing was conducted on nine specimens, with three specimens per variation. The Izod impact test method, based on the ASTM D256 standard, was employed.The parameters analyzed included absorbed energy and impact strength, the latter being calculated as the ratio of absorbed energy to the specimen's cross-sectional area. The results indicate that varying the bamboo cell wall thickness yields different values for absorbed energy and impact strength. The average absorbed energy values for thicknesses of 1 mm, 1.5 mm, and 2 mm were 15.30 J, 7.27 J, and 8.26 J,respectively. Meanwhile, the average impact strengths obtained were 0.0645 J/mm2, 0.0462 J/mm2, and 0.0531 J/mm2,respectively. The highest impact strength was observed at a thickness of 1 mm, while the lowest was observed at 1.5 mm. These results demonstrate that the relationship between bamboo cell wall thickness and impact strength is non-linear; increasing the cell wall thickness does not necessarily enhance the structure’s capacity to absorb impact energy. Based on the findings, the 1 mm bamboo cell wall thickness represents the optimal variation in this study, as it yielded the highest impact strength. Bamboo-based honeycomb structures show potential for development as lightweight sandwich composite core materials capable of absorbing impact energy.]]>
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