• Shipbuilding, Semester 2, position 5

The objective of the course is to enable students to have a basic understanding of the theory of the finite element method, a comprehensive understanding of the engineering approach and the concept of using this method in shipbuilding, as well as to equip them for solving basic ship strength problems at the level of stiffeners, stiffened plates, frames, unstiffened plates, stiffened plates, or any other local part of the structure.

1. Students will be capable of applying knowledge from fundamental natural sciences and technical disciplines (notably: strength of material, strength of structures, materials, mechanics) and engineering principles in understanding the finite element method in shipbuilding, as well as in understanding and solving specific ship strength problems using this method, such as responses of: stiffeners, stiffened plates, frames, unstiffened plates, stiffened plates, or any other local part of the structure. 2. Students will be able to, based on the use of fundamentals of natural sciences and engineering principles, formulate and pose fundamental problems (as mentioned above) in the analysis of ship strength using the finite element method to produce conclusions, while taking into account the limitations of the method and the incompleteness of data. 3. Students will be capable of selecting and applying computational methods based on the finite element method to model fundamental ship strength problems (as mentioned above), bearing in mind the method's limitations. Additionally, students will compare those results with existing analytical solutions. 4. Students will be capable of independently finding and critically using technical regulations (rules and regulations of classification societies and national registers, as well as other regulatory bodies for analysis using the finite element method), literature (papers, studies), and other information sources (data obtained from shipowners, design offices, shipyards, estimated data, etc.) to solve fundamental ship strength problems (as mentioned above) using the finite element method. 5. Students will be able to apply a systematic approach to solving complex structural problems of ship strength using the finite element method. 6. Students will know how to select and apply appropriate materials, consider shipbuilding technologies and processes, and their limitations, in the analysis of structures using finite elements.

Students are introduced to the application of the finite element method in engineering analyses. They become familiar with the basics of theory of elasticity, and then with the fundamentals of the finite element method theory in the context of linear-elastic analyses of ship structures. This includes: stiffness matrices of elements (rods, beams, and plates), stiffness matrices of structures, preprocessor modeling of ship structures, and similar topics. They are also explained the broader context of this method in shipbuilding and structural safety of ships, especially through the requirements and rules of classification societies regarding direct calculations of this type.

Students are introduced to and independently perform calculations of ship strength using the finite element method. Such calculations include responses: stiffeners, stiffened plates, frames, unstiffened plates, stiffened plates, or any other local part of the structure.

Defined by the curriculum of the study program.

1. Theoretical lecture material (presentation). 2 Auditorial lecture material – tasks solutions. 3. Book: M. Motok, Čvrstoća broda (in Serbian), FME Belgrade, 2005. 4. Rules and regulations for ships of the classification societies. 5. Strength of materials – tables of geometrical characteristics. 6. Computer room.

Total assigned hours: 75

New material: 30
Elaboration and examples (recapitulation): 0

Auditory exercises: 10
Laboratory exercises: 20
Calculation tasks: 0
Seminar paper: 0
Project: 0
Consultations: 0
Discussion/workshop: 0
Research study work: 0

Review and grading of calculation tasks: 0
Review and grading of lab reports: 0
Review and grading of seminar papers: 0
Review and grading of the project: 0
Test: 0
Test: 10
Final exam: 5

Activity during lectures: 5
Test/test: 50
Laboratory practice: 0
Calculation tasks: 0
Seminar paper: 0
Project: 0
Final exam: 45
Requirement for taking the exam (required number of points): 30

M. Motok: :Ship Strength (In Serbian), FME Belgrade, 2005.; O. F. Hughes, Ј. К. Paik: Ship Structural Analysis and Design, SNAME, 2010. ; LR: Rules and regulations for the classification of ships, 2020.