Browsing by Author "ROCHA, RAFAEL RODRIGUES"
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- Analysis of wood plywood joints in large pallets using numerical finite element analysisPublication . ROCHA, RAFAEL RODRIGUES; Campilho, Raul Duarte Salgueiral GomesThe global packaging industry has evolved toward more sustainable and efficient solutions, particularly in logistics and goods transportation. Wooden pallets remain dominant in freight handling due to their structural simplicity, low cost, and compatibility with various transport systems. However, industry trends demand optimization of these structures for sustainability, cost-effectiveness, and adaptability to custom sizes. This is particularly relevant for companies like NEFAB Portugal, which provide industrial packaging solutions for sectors such as automotive and telecommunications. As the demand for customized pallet sizes grows, there is an increasing need to analyse the mechanical performance of large dimensions pallets created by joining wooden beams. Actually, the use of adhesives and mechanical joints in pallet construction raises key questions regarding strength, cost, and durability under real-world loading conditions, which emphasis the need for structural verification. The primary aim of this dissertation is to study and compare seven different joint geometries for wooden beams used in pallet structures. These configurations were tested experimentally and simulated using Finite Element Analysis (FEA) to identify the best performing design. The research involved material characterization, manufacturing of joint specimens, static mechanical testing, and validation through numerical models. The joints were also assessed based on fabrication complexity, environmental sustainability, and cost-effectiveness. This comprehensive study supports NEFAB Portugal in optimizing future pallet designs, contributing to a more sustainable and efficient packaging strategy. The results show that specific joint geometries, particularly those combining adhesives with mechanical reinforcements, provide superior load-bearing capacity and cost efficiency compared to conventional methods.