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Structural Design & Scantling with ISO 12215

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  1. The course

    The Course
  2. Meet the Instructors
  3. Introduction
    Structural definition, scantling and yacht design process
    1 Quiz
  4. The design spiral
    1 Quiz
  5. Scope of this course
  6. Part 1 - Initial considerations
    Frame of reference
  7. Part 1 - Fundamentals of strength of materials
    Stress, strain and constitutive equations
    1 Quiz
  8. Principles of Strength of Materials
    1 Quiz
  9. Geometry of structural elements
    1 Quiz
  10. Stresses due to the resultant force and moment
    1 Quiz
  11. The stress-strain curve
    1 Quiz
  12. Classification of beams
    1 Quiz
  13. Axial loads
    1 Quiz
  14. Bending
    1 Quiz
  15. Plate Theory
    1 Quiz
  16. Composite Materials. Physical properties
    1 Quiz
  17. Composite Materials. Mechanical properties: the stress-strain curve
    1 Quiz
  18. Part 1 - Loads
    Global loads: the ship as a beam
    1 Quiz
  19. Local loads: hydrostatic pressure
    1 Quiz
  20. Punctual loads due to yacht elements
    1 Quiz
  21. Loads specific to a type of craft
    1 Quiz
  22. Part 1 - Structural elements
    Stiffeners
    1 Quiz
  23. Panels
    1 Quiz
  24. Union and connection elements
    1 Quiz
  25. Part 1 - Types of structures
    Longitudinal structure
    1 Quiz
  26. Transverse and mixed structure
    1 Quiz
  27. Choosing the type of structure
    1 Quiz
  28. Part 1 - Practical considerations in the definition of the structure
    Moulded lines
    1 Quiz
  29. Structural design process
    1 Quiz
  30. Part 1 - General aspects of the scantling process
    General aspects of the scantling process
    1 Quiz
  31. Part 2 - The ISO 12215 Norm
    Introduction to the ISO 12215 Norm
    1 Quiz
  32. Structure of the ISO 12215 Norm
    1 Quiz
  33. Materials considered in the ISO 12215 Norm
    1 Quiz
  34. Procedure for the scantling calculation
    1 Quiz
  35. Panel calculation process: bottom panels
    1 Quiz
  36. Panel calculation process: deck and cockpit panels
    1 Quiz
  37. Panel calculation process: side panels
    1 Quiz
  38. Panel calculation process: panels for superstructures
    1 Quiz
  39. Panel calculation process: factors
    1 Quiz
  40. Panel calculation process: design bending moment and shear force
    1 Quiz
  41. Stiffener calculation procedure
    1 Quiz
  42. The rudder: geometry
    1 Quiz
  43. The rudder: forces and design
    1 Quiz
  44. The keel: load cases
    1 Quiz
  45. The keel: design
    1 Quiz
  46. The rig
    1 Quiz
  47. Additional elements: the engine bench
    1 Quiz
  48. Part 3 - Practical examples (composite materials)
    Calculation of composite properties
  49. Calculation of a monolithic bottom panel - Part 1
  50. Calculation of a monolithic bottom panel – Part 2
  51. Calculation of a sandwich deck panel
  52. Calculation of an Omega side stiffener
  53. Calculation of the rudder with ISO 12215-8
  54. Defining the keel with ISO 12215-9
  55. Calculation of the rig with ISO 12215-10
  56. Final Assignment
    Final Assignment
  57. Course Materials
    Course Materials
  58. Course Survey
    Course evaluation survey
    1 Quiz
  59. Summary
    Wrap-up

Structural design and scantling determination are crucial steps in the vessel’s design process. Structural strength must be sufficient to withstand the loads on the boat. Moreover, the structure and its scantling are also linked to other aspects of a vessel, such as resistance or stability. 

These calculations can be carried out according to the ISO 12215 norm, an internationally recognized standard for vessels up to 24 meters long. Compliance with ISO 12215 is mandatory for obtaining the CE marking and, therefore, for selling boats in the European Union.

In this course, we will detail the scantling process with the ISO 12215 norm.

To that aim, the course is structured into three parts:

First, the fundamentals of the strength of materials will be introduced. As a prior step to the scantling, we will also discuss the structure definition process. 

The second part will present an explanation of the ISO 12215 norm. This includes the structure of the norm and the formulae to be applied in scantling determinations.

Finally, several relevant examples will be carried out in the third part with downloadable calculation templates. These will be developed for the scantling of a sailing yacht built in fiber-reinforced polymer, including the calculation of composites properties, the computation of both monolithic and sandwich panels, and the calculation of stiffeners. Besides, relevant elements such as the rudder, the keel, and the rig will be computed according to their corresponding parts of the norm.

By completing this course, you will be able to:

  • Design the structure of a boat.
  • Understand the ISO 12215 norm and the fundamentals behind it.
  • And apply this norm to evaluate the scantling of either motorboats or sailing yachts.