Experimental and simulation approaches to strength and quality enhancement of composite sandwich structures in leisure waters skis

Department of Mechanical Engineering, Frederick University, Nicosia, Cyprus

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Abstract

Water skiing is a popular water sport that combines excitement, leisure and skill. In this activity, a person is towed behind a boat while balancing on skis designed specifically for gliding across the water’s surface. Water skiing has evolved into various forms, including slalom skiing, trick skiing, and jump skiing, each requiring specialized equipment and techniques. The performance of water skis is highly dependent on their construction materials (such as composite materials with carbon fiber and epoxy resins) and design. These materials offer superior stiffness, strength, and durability, enabling manufacturers to create products that enhance the skier’s performance and experience. The shape and layout of water skis significantly influence the handling characteristics, stability, and speed during skiing. Optimizing the stiffness through innovative configurations can improve responsiveness to the skier’s movements, allowing for tighter turns and better control during high-speed slalom. As the sport continues to grow, water ski manufacturers are increasingly focusing on research and development to create cutting-edge products that meet the demands of both recreational and competitive skiers. By exploring various material combinations and testing methodologies, manufacturers seek to push the boundaries of performance, ultimately enhancing the appeal and safety of water skiing as a thrilling sport enjoyed by many. The present study investigates the overall stiffness of two distinct carbon fiber configurations utilized by a water ski manufacturer in Cyprus through a series of three meticulously designed load experiments. Following ASTM standards, both bending and edgewise compression tests were conducted to evaluate the mechanical properties of the used composite materials and manufacturing process. Additionally, the adhesion of carbon fiber sheets over a PVC foam core was explored using a tailored methodology aimed at drawing significant conclusions regarding structural integrity. The comparative analysis from the bending and edgewise compression tests revealed that, one of sheets over a PVC the specimens exhibiting superior stiffness. The present findings will play a crucial role in shaping the future designs of the manufacturer’s water ski products, ensuring enhanced performance and durability in the competitive market.