• Shipbuilding, Semester 1, position 2

The course aims to prepare students with a comprehensive understanding, selection of appropriate methods for solving, and the direct resolution of fundamental ship strength problems. These include: basic modes of hull failure and limit states, hull responses, bending of stiffeners with and without attached plating, effective width of plating, geometrically similar sections, buckling of stiffeners, response of ship's transverse sections (frames), bending of plates (platings), buckling of unstiffened and stiffened plates (platings), effective width of plates.

1. Students will be able to apply comprehensive knowledge from fundamental natural and technical sciences (mainly: strength of materials, strength of structures, mechanical materials, mechanics) and engineering principles to solve fundamental ship strength problems such as: basic modes of hull failure and limit states, hull responses, bending of stiffeners with and without attached plating, effective width of plating, geometrically similar sections, buckling of stiffeners, response of ship's transverse sections (frames), bending of plates (platings), buckling of unstiffened and stiffened plates (platings), and effective width of plates. 2. Students will be capable of formulating and setting fundamental ship strength problems (abovementioned), using the foundations of natural sciences and engineering principles, to reach relevant conclusions while considering the limitations of methods and data incompleteness. 3. Students will be able to select and apply analytical and computational methods to model the fundamental ship strength problems (abovementioned), while considering the limitations of these methods. 4. Students will be capable of independently finding and critically using technical regulations (rules and regulations of classification societies and national registries, as well as other regulatory bodies), literature (papers, studies), and other information sources (data from shipowners, design offices, shipyards, estimated data, etc.) to solve the fundamental ship strength problems (abovementioned). 5. Students will be able to select and apply materials, consider shipbuilding technologies and processes, as well as their limits. 6. Students will be able to communicate complex engineering issues related to ship strength to both technical and non-technical audiences, evaluating the effectiveness of the methods used. This will be achieved by assigning ship strength topics for students to research and then present.

Students are introduced to various types of ship strengths failures and their limit states. They study the basic loadings on a ship's hull, classified into static, quasi-static, and dynamic. Primary, secondary, and tertiary structural responses are analyzed, with conditional divisions into longitudinal, transverse, and local strength. Analytical and numerical methods for calculating the bending and buckling of beams, trusses, unstiffened, and stiffened plates in ship structures are explored.

Students are acquainted with and independently perform calculations on: geometric characteristics of cross-section of stiffeners, bending of stiffeners with and without attached plating, effective width of attached plating, geometrically similar sections, buckling of stiffeners, responses of ship hull cross-sections (frames), bending of plates (platings), buckling of unstiffened and stiffened plates (platings), and effective width of plates. These skills are essential in modern engineering practice, both in direct calculations of hull strength and in creating semi-empirical formulas in rules of the classification societies.

Defined by the Study Program Curriculum.

1. Theoretical lecture material (presentation). 2 Auditorial lecture material – tasks solutions (presentation). 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: 17
Laboratory exercises: 0
Calculation tasks: 10
Seminar paper: 3
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: 5
Review and grading of the project: 0
Test: 0
Test: 0
Final exam: 10

Activity during lectures: 5
Test/test: 0
Laboratory practice: 0
Calculation tasks: 40
Seminar paper: 15
Project: 0
Final exam: 40
Requirement for taking the exam (required number of points): 15

M. Motok: Ship Strength /In Serbian/, MF, Beograd, 2005.; Ј. К. Paik: Ultimate Limit State Analysis and Design of Plated Structures, John Wiley & Sons, 2018.; O. F. Hughes and Ј. К. Paik: Ship Structural Analysis and Design, SNAME, 2010.; SNAME: Ship Design and Construction, Vol I, SNAME, 2003.; M. Milovančević, N. Anđelić, V. Milošević-Mitić, M. Dunjić, D. Ružić, R. Čukić: Otpornost materijala – tablice (in Serbian), FME Belgrade, 2021