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EM3015: STRESS ANALYSIS A (2017-2018)

Last modified: 25 May 2018 11:16

Course Overview

One of the roles of an engineer is to ensure that engineering components perform in service as intended and do not fracture or break into pieces.  However, we know that sometimes engineering components do fail in service.  Course examines how we determine the magnitude of stresses and level of deformation in engineering components and how these are used to appropriately select the material and dimensions for such component in order to avoid failure. Focus is on using stress analysis to design against failure, and therefore enable students to acquire some of the fundamental knowledge and skills required for engineering design.

Course Details

Study Type Undergraduate Level 3
Session First Sub Session Credit Points 15 credits (7.5 ECTS credits)
Campus None. Sustained Study No
  • Dr Alfred Akisanya

Qualification Prerequisites

  • Either Programme Level 3 or Programme Level 4

What courses & programmes must have been taken before this course?

  • One of EA2502 Solids and Structures (Passed) or EG2029 Materials and Structures (Passed) or EG2502 Solids and Structures (Passed)
  • Any Undergraduate Programme (Studied)
  • Engineering (EG) (Studied)

What other courses must be taken with this course?


What courses cannot be taken with this course?

  • EG3015 Stress Analysis A (Studied)

Are there a limited number of places available?


Course Description

This course focuses on the fundamental relationship between the stresses and strains within engineering components and the load and displacements imposed at their boundaries.  Analytical, experimental and numerical (e.g. finite element method) techniques are used predominantly for 2-dimensional geometries and both elastic and plastic responses are considered.  The concepts of stress equilibrium equations, elastic constitutive laws, and strain-displacement relations are developed and used to obtain the stress solution for a range of commonly used configuration and load cases, including bending, torsion and axisymmetric loading of cylinders and shafts.  The implications of the stress solution are discussed within the context of design against failure. A wide range of mechanical and civil engineering design case studies are presented.


Hands-on practical activities are used to enhance students learning.  Students carry out laboratory experiment to determine the stress distribution in an internally pressurised cylinder. The surface strains are measured using a strain gauge rosette at different values of internal pressure.  The principal stresses are then determined using the elastic stress-strain relations, and compared with the theoretical predictions based on both the thin-wall and thick-wall assumptions.   The experimental results and the theoretical results are subsequently compared with those from computer simulation using the finite element method.  The finite element analysis also allows students to assess the limitations of the generally used plane stress assumption for thin-walled cylinders and the implications of stress concentrations at the intersection between the end caps and the main cylinder.   

Degree Programmes for which this Course is Prescribed

  • BSc Engineering (Civil)
  • BSc Engineering (Mechanical)
  • Bachelor of Engineering in Eng (Civil and Environmental)
  • Bachelor of Engineering in Eng (Civil and Structural)
  • Bachelor of Engineering in Eng (Mechanical and Electrical)
  • Bachelor of Engineering in Engineering (Civil)
  • Master of Engineering in Civil Eng with Subsea Technology
  • Master of Engineering in Civil Engineering
  • Master of Engineering in Civil Engineering with Management
  • Master of Engineering in Civil and Environmental Engineering
  • Master of Engineering in Civil and Structural Engineering
  • Master of Engineering in Mechanical & Electrical Eng

Contact Teaching Time

51 hours

This is the total time spent in lectures, tutorials and other class teaching.

Teaching Breakdown


1st Attempt: Three-hour written examination paper (90%) and continuous assessment (10%).

The continuous assessment will be based on the keeping of a logbook for the practical work but will take into account attendance and performance in carrying out the practical work.

Resit: Three-hour written examination paper (90%) and continuous assessment (10%).  The continuous assessment mark from the first attempt will be carried forward to the resit.  

Formative Assessment



a) Assessment grade and feedback comments will be provided on laboratory report within two weeks of submitting the report.

b) Students can obtain feedback on their understanding of key aspects of the course at the weekly tutorial sessions.

c) Students requesting feedback on their exam performance should make an appointment with the course coordinator within two weeks of the publication of the exam results.

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