# MAR2021 : Marine Structures I

• Offered for Year: 2023/24
• Module Leader(s): Dr Simon Benson
• Lecturer: Dr Narakorn Srinil
• Owning School: Engineering
• Teaching Location: Newcastle City Campus
##### Semesters

Your programme is made up of credits, the total differs on programme to programme.

 Semester 1 Credit Value: 10 Semester 2 Credit Value: 10 ECTS Credits: 10.0 European Credit Transfer System

#### Aims

To develop knowledge and understanding of:
A1. The global response of ship as a beam in still water and poised on a wave
A2. The resulting forces, moments and stresses on a ship hull girder
A3. The calculation and development of the midship section
A4. The statistical nature of hull bending in waves A5. The response of slender elements in compression A6. The
analysis of truss structures.
A7. The analysis of determinate and indeterminate beam
A8. The application and analysis of composite materials for marine products
A9. The skills to undertake ship structural design and analysis

#### Outline Of Syllabus

The module provides an awareness of structural principles and their application to marine related problems. The syllabus is in four parts.

Global Strength
Introduction to forces acting on a ship at sea; a quasi static approaches to longitudinal strength; determining equilibrium; calculation of weight, buoyancy, shear force and bending moment; determining design bending moment and shear force; classification society requirements; calculation of bending stress distribution; calculation of shear tress distribution; the influence of shear strain and stress on longitudinal stress (shear lag); calculation of hull deflection; introduction of shear strain and stress on longitudinal stress (shear lag); calculation of hull defication.

Local Strength 1
Introduction to transverse and local strength; buckling of struts and fundamental assumptions; Euler and Rankine-Gordon methods; strain gauge recording of stress of a ship at sea; statistical interpretation of the stress record; prediction probability of stress level exceedance; different steel types used in the marine industry; the evaluation of trusses by the method of nodes and method of sections.

Local Strength 2
Structural configurations; elastic beam theory; indeterminate beams; stiffened panels; transverse and local strength; continuous beams; composite materials; composite construction; 2-D stress and strain; principle stresses/strain; strain gauge rosettes; transverse and local strength; temperature effects; finite elements; introduction to ship vibration; propeller hull interaction forces; machinery excitation; estimation of natural frequencies and amplitudes of hull vibration; design considerations.

Composite Materials
Introduction to marine composites, composite construction, anisotopic theory, composite sandwich panels; modes of failure.

#### Teaching Methods

##### Teaching Activities
Category Activity Number Length Student Hours Comment
Structured Guided LearningLecture materials440:3022:00Pre-recorded lecture material
Guided Independent StudyAssessment preparation and completion138:0038:00Examination revision (Semester 2)
Guided Independent StudyAssessment preparation and completion12:002:00Examination (Semester 2)
Scheduled Learning And Teaching ActivitiesPractical41:306:00Coursework preparation sessions (Semester 1) in computer cluster.
Scheduled Learning And Teaching ActivitiesSmall group teaching221:0022:00Guided practice of problem-solving skills. 11 in Semester 1 and 11 in Semester 2
Guided Independent StudyProject work140:0040:00Coursework preparation
Guided Independent StudyIndependent study170:0070:00General revision, reading and consolidating of lecture notes. Equivalent to approx. 3 hours per week
Total200:00
##### Teaching Rationale And Relationship

The use of online lectures as the principle teaching method is an effective means to provide students with the acquisition of the sizeable knowledge and base facilitate the understanding of the module material (IKO1-20)

Practical sessions provide the forum for the knowledge and understanding developed through formal lectures to be integrated into a coursework exercise to load an idealised ship with a specified amount of cargo, evaluate the resulting loads, forces and moments. Suggest midship section scantlings and complete local structural analysis (ISO1-2)
The exercise also provides a platform to exercise team - working and management, planning, problem solving and numeracy skills (ISO1-2)
1.       Lectures are designed to convert the underlying concepts and knowledge of marine structural design and
analysis (IKO1-IKO20) and the professional skills required to solve structural problems (ISO1-ISO13).
2.       Tutorials support the students' self study in reading around the lecture material and learning to solve
marine structural problems posed by the tutorial questions (ISO1-ISO13).
3.       Practical sessions are a mix of supervised and self-organising activities in which the students develop
intellectual and problem-solving skills to design and analyse marine structures (ISO12-ISO13).
4.       Independent study gives time for students to read recommended references (IKO1-IKO20) and practise their
professional skills (ISO1-ISO13).

#### Assessment Methods

The format of resits will be determined by the Board of Examiners

##### Exams
Description Length Semester When Set Percentage Comment
Written Examination1202A50N/A
##### Other Assessment
Description Semester When Set Percentage Comment
Written exercise1M50Coursework part 2 -4 taking a maximum of 30 hours
##### Formative Assessments

Formative Assessment is an assessment which develops your skills in being assessed, allows for you to receive feedback, and prepares you for being assessed. However, it does not count to your final mark.

Description Semester When Set Comment
Written exercise1MCoursework Part 1 taking a maximum of 10 hours
##### Assessment Rationale And Relationship

The written examination will assess the breadth of knowledge, understanding and ability to perform related ship strength calculations. This medium also allows students to demonstrate intended learning outcomes across a wide range of topics from the syllabus.

The coursework provides students with the opportunity to demonstrate written communication, teamwork, planning, organisation, initiative, problem solving and acquisition of learned skills.