Hello everyone! This is the end of the course.
Throughout this journey, we have deepened our understanding of marine structures and their application to different types of craft, following the ISO 12215 standard.
We began the course by reviewing some of the most important structural concepts essential for understanding the principles behind any scantling rule. In particular, we examined the mechanical behavior and properties of metallic materials and wood and discussed how they influence structural performance. This first part concluded with an overview of the ISO 12215 standard, its internal organization and the general procedure for performing scantling calculations.
In the second part, we applied the ISO 12215 procedure for both panels and stiffeners, focusing on its use in a metallic planing motorboat. This included the calculation of design pressures and the corresponding adjusting factors, as well as the derivation of design stresses based on material properties. These components come together to evaluate and verify the scantling of panels and stiffeners, ensuring structural integrity under prescribed conditions.
Next, we explored the specific application of ISO 12215 to multihulls. The standard provides a dedicated document for these craft, which includes specific local design pressures and, crucially, the evaluation of global loads, a key consideration in multihull design. This part ends with a practical example illustrating how both local and global loads are computed for a multihull configuration.
Finally, we introduced the scantling of wooden boats. We presented the main structural and material considerations specific to wood, along with their treatment within the ISO 12215 framework. These concepts were then applied through examples involving both panels and stiffeners in wooden construction.
Together with the previous course on scantling focused on composite materials and sailing yachts, this course gives you a comprehensive understanding of the ISO 12215 standard, a solid foundation on structural principles, and practical tools to assess the structure of a wide range of small craft.