Parametric Design of HDPE Testing Specimens for Boatbuilding Applications

Innovative materials have been used in boat construction in recent years; a thorough investigation of their mechanical and strength properties is required through comprehensive laboratory testing designed to characterize their suitability for maritime applications. An example of these materials is High-Density Polyethylene (HDPE), a thermoplastic polymer that has already found widespread use in other industrial sectors due to its durability, resistance to corrosion, ease of processing, and recyclable. To understand the proper approaches for the execution of mechanical tests, The relevant regulations and standards governing the preparation and testing of material specimens were thoroughly analyzed. In particular, International Organization for Standardization (ISO) and American Society for Testing and Materials International (ASTM) standards illustrate the geometry and dimension of the testing specimen. These standards are also referenced in the regulations of ship classification societies, which are beginning to provide recommendations on the use of this innovative material. However, sometimes the dimensions specified in the regulations must be reviewed and adapted to the raw material's shape and the testing machines available in the laboratories where the experimental testing campaign will be conducted. Based on these concepts, this paper aims to focus on the process of shaping prototypes for the experimental campaign using advanced parametric design software. These tools were compared with traditional two-dimensional drafting software to evaluate their effectiveness in terms of drawing adaptability, and efficiency. These findings underscore the importance of modern design tools in streamlining the experimental process and enhancing the overall reliability of material assessments.