Energy absorption of polyurethane filled Al 6061 honey comb sandwiched structure

• DOI: 10.1080/15376494.2023.2263463
• Publication Date: 2023-10-03T02:30:31Z
• Authors: Oluwaseun K. Ajayi; Babafemi O. Malomo; Damilola Adebayo; Hakeem A. Owolabi; Babatunde V. Omidiji; Adekunle V. Adeniyi
• Keywords: Honeycomb; Universal testing machine; Honeycomb structure

AbstractThe energy absorption characteristics of composites are developed for applications likely to be subjected sudden or prolonged impacts. In lightweight applications, the possibilities Al 6061 being explored with various known materials similar properties. Three low densities but high strength was combined: hexagonal honeycomb core sandwiched polyurethane foam and embedded within two glass fiber-reinforced polymer plates. L-9 orthogonal array Taguchi DOE adopted design experiment varying mixture, height, face sheet thickness using three-factor method. From output DOE, twenty-seven samples were fabricated. order determine force-displacement relationship each test samples, a three-point bending performed on universal testing machine. Energy (EA) crushing force (CF) determined from displacement values. These values then optimized minimize PCF while maximizing EA. Numerical analysis correlated results experimental after testing. Since is measure applied resulting material, discussed.Keywords: Honeycombbending testpeak forceenergy absorptionpolyol-isocyanate ratio AcknowledgmentsSpecial thanks Department Mechanical Engineering, Elizade University, Nigeria their technical support School Computing, Engineering Digital Technologies (SCEDT) Lab, Teesside Middlesborough, United Kingdom providing facilities used simulation.Disclosure statementNo potential conflict interest reported by authors.Additional informationFundingThis research supported Nigerian Tertiary Education Trust Fund (TETFUND) National Research (NRF) Intervention Grant # 00017-2021.