Ariyana Dwiputra Nugraha, Muhammad Luthfi Hakim, Ari Pramana, Farid Triawan, Murni Handayani, Yosephin Dewiani Rahmayanti, Muhammad Akhsin Muflikhun
Hybrid composites using adhesive joints are gaining popularity in various industries as their various material combinations can create certain advantages. This research focuses on examining the mode I and mode II fracture toughness characteristics of the combined laminate between Steel Plate Cold Rolled Commercial (SPCC) metal and Carbon Fiber Reinforced Polymer (CFRP) composite processed using adhesive bonding. SPCC/CFRP hybrid laminate composites were manufactured with a variety of manufacturing options (A, B, and C) to find the most optimal method using two types of epoxy and cyanoacrylate adhesives, with two different bonding processes: secondary bonding and co-bonding. Fracture toughness values were measured through the Double Cantilever Beam (DCB) test for mode I and the End Notched Flexure (ENF) test for mode II. The test results showed that epoxy adhesives in the SPCC/CFRP adhesive joints provided better fracture toughness performance, especially when combined with the co-bonding technique. Specimens from manufacturing option C showed the highest GIC and GIIC values of 83.05 and 254.94 J/m2, respectively. These values increased by 58.98 % and 80.48 % compared to manufacturing options A and B in Mode I. Additionally, the GIIC value for manufacturing option C increased by 78.00 % and 66.76 % compared to manufacturing options A and B. The SPCC/CFRP hybrid laminates showed adhesive failure on the SPCC surface when using epoxy adhesive, whereas adhesive failure occurred on the CFRP surface with cyanoacrylate adhesive for the different manufacturing options. © 2024 The Authors
PLN Research Institute, Kota Jakarta Selatan, Jl. Duren Tiga Raya No.102, RT.8/RW.1, Duren Tiga, Kec. Pancoran, Daerah Khusus Ibukota Jakarta 12760, Indonesia; Departement of Electrical Engineering Education, Faculty of Engineering, Universitas Negeri Yogyakarta, Jl. Colombo No.1, Karang Malang, Caturtunggal, Kec. Depok, Kabupaten Sleman, Daerah Istimewa Yogyakarta 55281, Indonesia; Mechanical and Industrial Engineering Department, Universitas Gadjah Mada, Grafika Street No. 2, Special Region of Yogyakarta, Yogyakarta, 55281, Indonesia; Sampoerna University, Kota Jakarta Selatan, L'Avenue Building, Jl. Raya Pasar Minggu No.Kav. 16 7, RT.6/RW.9, Pancoran, Kec. Pancoran, Daerah Khusus Ibukota Jakarta 12780, Indonesia; Research Center for Nanotechnology Systems, National Research and Innovation Agency (BRIN), Puspiptek Area, Tangerang Selatan, 15314, Indonesia; Center for Energy Studies (PSE), Universitas Gadjah Mada, Indonesia
