# TMR4170 - Marine Structures

### Examination arrangement

Examination arrangement: Portfolio assessment

Evaluation Weighting Duration Grade deviation Examination aids
Arbeider 30/100
Skriftlig eksamen 70/100 4 timer

### Course content

The course deals with the load-carrying functionality, load-effect analysis and design of ships and marine structures. The following topics are addressed: Linear elastic analysis of shell- and plate-structures including numerical methods. Energy principles and virtual work. Plate buckling based on second order theory. Analyttical and energy-based numerical solution methods. Buckling of plate panels. Cross-section analysis. Design criteria related to yielding, buckling and fatigue.

### Learning outcome

a) To know the main types of load-carrying components in floating hulls and their associated mechanical limit states
b) To have understanding of the mechanical basis for analysis of shells, and to be able to analyse the stress distribution in such components with focus on energy-based formulations
c) To be familiar with the main steps of the Finite Element Method. To have knowledge of the physical properties and the corresponding matrix formulations related to shell elements, including linearized geometric stiffness.
d) To be able to explain the difference between first- and second-order models for plate behavior and how this is reflected in the mathematical formulations
e) Know how to analyse buckling of plates and stiffened panels based on first principles. To have thorough knowledge of the differential equation, analytical solutions and numerical solutions based on energy methods
f) To be familiar with the principles underlying codified design rules related to buckling of stiffened plate panels
g) Knowledge of methods for cross-section analysis in relation to torsion and shear stress distribution for open and closed cross-sections
h) To know the steps related to fatigue life assessment of floating hulls based on the SN-curve approach and to be familiar with the concept of material class.

### Learning methods and activities

Lectures and exercises. Portfolio assessment is the basis for the grade in the course. The portfolio includes a written exam (70%) and exercises (30%). The results for the parts are given in %-scores, while the entire portfolio is assigned a letter grade. If there is a re-sit examination, the examination form may change from written to oral. Examination papers will be given in English only. Students are free to choose Norwegian or English for written assessments.

• Exercises

### Required previous knowledge

Some knowledge of Matlab programming.

Compendiums.

### Credit reductions

Course code Reduction From To
SIN1010 7.5
More on the course

No

Facts

Version: 1
Credits:  7.5 SP
Study level: Second degree level

Coursework

Term no.: 1
Teaching semester:  SPRING 2017

Language of instruction: English

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Subject area(s)
• Technological subjects
Contact information
Course coordinator:
• Bernt Johan Leira

Department of Marine Technology

# Examination

#### Examination arrangement: Portfolio assessment

Term Status code Evaluation Weighting Examination aids Date Time Examination system
Spring ORD Skriftlig eksamen 70/100 2017-05-31 09:00
Spring ORD Arbeider 30/100
Summer KONT Arbeider 30/100
Summer KONT Muntlig eksamen 70/100 2017-08-07
• * The location (room) for a written examination is published 3 days before examination date. If more than one room is listed, you will find your room at Studentweb.
Examination

For more information regarding registration for examination and examination procedures, see "Innsida - Exams"

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