Scantling with ISO 12215

This course will explain the ISO 12215 standard, perform a complete calculation of a monohull, help analyze the results obtained, and explain why some solutions are more suitable than others.

Welcome to Scantling with ISO 12215!

Providing sufficient structural strength is one of the main objectives of a designer of floating devices. Yet, one of the most neglected aspects in the design of small boats has been the calculation of their structures.

Scantling is the process of defining and calculating the structural elements of a vessel.

Classification societies’ scantling regulations do not apply to vessels less than 24 meters in length. Also, scantling regulations and recommended practices for small boats available worldwide differ from each other, limiting their general acceptance.

ISO 12215 has come to fill that gap by defining scantling guidelines and unifying different criteria.

What will you learn?

Compliance with ISO 12215 is mandatory for obtaining the CE marking and, therefore, for selling boats in the European Union. It applies to recreational and commercial craft and workboats up to 24 meters in length.

This course will explain the ISO 12215 standard, carry out step-by-step manual detailed calculations for different hull structural elements, perform a complete calculation of a sailing yacht of 17 meters long (1) using dedicated scantling software, help analyze the results obtained, and explain why some solutions are more suitable than others.

Once finished, course students will be able to obtain precise information on weights and centers of gravity, which will allow them to carry out naval architecture calculations more accurately and enable the preparation of construction plans.

During the course, the instructors will:

  • guide the students through the different procedures defined by the standard;
  • explain how to get the best out of each of those procedures;
  • provide reasoned criteria that will help in making decisions;
  • clarify peculiar situations that can be found in some types of structures;
  • provide solutions and perform calculations to structures not covered by the standard, such as the bulwark, floors, transoms, inboard engine mounts, etc.;
  • carry out step-by-step manual detailed calculations for different hull structural elements;
  • perform the scantling of a complete sailboat using the software SCT_Navalapp: structure, rigging (1), rudder, and keel-to-hull connection.

(1) The course will start using the NBS standard for rig calculations. After the official launch, the course will be updated to include the ISO 12215 – 10 “Rig loads and rig attachment in sailing craft.”

The software

In the second part of the course, the instructors use the following dedicated scantling software:

  • SCT_Navalapp
  • MyR

SCT_Navalapp runs on Windows, and some of its modules require Microsoft Excel to work properly. The instructors will explain how to install SCT_Navalapp on WindowsMacOS, and Linux machines. SCT_Navalapp is a special edition for this course of the software SCT_MC developed by one of the instructors (Ignacio López). This course does not provide Windows or Microsoft Excel licenses. 

MyR has also been developed by Ignacio López and will be used to perform scantling calculations to the rig following the NBS (Nordic Boat Standard). As mentioned above, the course will start using the NBS standard for rig calculations and will be updated to include the ISO 12215 – 10 “Rig loads and rig attachment in sailing craft” after being launched.

Students will be granted a Free Student License to both software packages that will allow them to follow along with the course. The Free License will last six (6) months after software installation on the Student’s machine. If, after the initial six (6) months period, a student has not been able to finish the course, an extension of the initial license period could be granted provided both he or she sends a request explaining the reasons, and we approve it. Students interested in buying commercial versions of the software packages will also receive a discount.

Course organization

The course is video-based, self-paced, and on-demand at your convenience. Students can follow the course at their own pace from wherever they want.

Students who complete the course will obtain a Certificate.

Course students will also have access to the course’s virtual private classroom, where they can interact with the course instructors and fellow students.

Resources:

  • Video lessons.
  • Materials (pdf documents).
  • Student License to Scantling Software.
  • Virtual private classroom.
  • Quizzes.
  • Course Certificate

Classroom:

  • Once enrolled, you will have access to the course’s virtual private classroom, where you can interact with the course instructors and fellow students.

Prerequisites:

  • To follow the course, it is not necessary to have any prior knowledge of scantling. However, a technical or engineering background will help you out during the journey.

  • A minimum Navalapp membership level of “Subscriber” (free membership) is required to enroll in this course. If you don’t have an account yet, you can sign up for free here.

Welcome aboard and enjoy the course!

Course Content

Introduction
What is scantling?
Loads on a boat
Types of structures
Situation of structural elements
Union and connection elements
Calculation of resistant elements
Explanations and notes to ISO 12215-5
Analysis of the results
Example 1: bottom panel
Example 2: GRP monohull sailboat 17 m in length
Appendix
Course materials
Course Survey
Summary
Not Enrolled

Course Includes

  • 32 Lessons
  • Documents
  • Virtual Private Classroom
  • Free Software Student License
  • Course Certificate