ENG06079 2019 Mechanics 2
This module has been designed to give the student an appreciation into how stress affects materials in practical situations. It is assumed that the student will have successfully completed the 1st year mechanics course and so understands how to represent forces, vector quantities, and understands stress / strain relationships.
In this module the student will look at applied mechanics problems such as
 Stress in compound bars,
 Shear force, shear stress, and shear strain, Poisson's ratio
 Shear force and bending moment diagrams.
 Centrifugal forces and rotation.
 Torsion
 Thermal strain
 Hoop stress in thin walled pressure vessels and thin rotating rings.
This module is taught by a number of lecturers and includes many real life examples of how mechanics is used.
Learning Outcomes
On completion of this module the learner will/should be able to;
Define the terms "stress" and "strain" and determine the stress and strain that each material in a compound bar experiences
Be able to explain what shear force, shear stress and shear strain mean, plus calculate the shear stress components experience is certain practical situations
Construct a shear force and bending moment diagram for simply supported and cantilever beams, which are loaded with point loads or uniformly distributed loads.
Be able to calculate shear stress, angle of twist, and torque in rotating shafts.
Identify instances, effects and applications of thermal strain and calculate stresses resulting from changes in temperature
Determine the centrifugal forces set up in different scenarios.
Calculate the hoop stress set up in thin walled pressure vessels and in thin rotating rings.
Teaching and Learning Strategies
There will be 4 hours of lectures, where the theory will be covered and multiple examples demonstrated. Each week there will also be a tutorial based on the previous weeks lecture.
Module Assessment Strategies
The learning outcomes may be assessed by laboratory reports or assignments, plus assessments at various times during the semester plus an end of semester examination
Repeat Assessments
Repeat assessment will be by way of sitting another examination on the subject. Alternatively, at the discretion of the lecturer, assignments covering the deficient areas of the course may be set.
Module Dependencies
Indicative Syllabus
 Revision of Engineering Mechanics
 Compound bars, calculation of stress and amount of deformation experienced by each material
 What is a shear?, Shear force, shear stress, shear strain, Poisson's ratio.
 Shear force and bending moment diagrams, what they are and how to draw and interpret them, and how they relate to bending stresses.
 Hoop stress in thin walled pressure vessels and in thin rotating rings.
 Use of the formula for torsion in solid shafts and tubular shafts.
 Centrifugal forces in different situations.
 Thermal strain.
Indicative practicals.
 Tutorials as required

Tensile tests for various materials, perhaps include compound bars.

MDSolids demonstration and exercises especially for bending moment and shear force diagrams.
Coursework & Assessment Breakdown
Coursework Assessment
Title  Type  Form  Percent  Week  Learning Outcomes Assessed  

1  Weekly tutorials  Continuous Assessment  Open Book Exam  30 %  OnGoing  1,2,3,4,5,6,7 
End of Semester / Year Assessment
Title  Type  Form  Percent  Week  Learning Outcomes Assessed  

1  Final Exam Terminal exam  Final Exam  UNKNOWN  70 %  End of Term  1,2,3,4,5,6,7 
Full Time Mode Workload
Type  Location  Description  Hours  Frequency  Avg Workload 

Lecture  Lecture Theatre  Lecture  4  Weekly  4.00 
Tutorial  Engineering Laboratory  Tutorial / demonstrations  1  Weekly  1.00 
Independent Learning  UNKNOWN  Revision  2  Weekly  2.00 
Independent Learning  UNKNOWN  Reading as recommended by lecturer  1  Weekly  1.00 
Independent Learning  UNKNOWN  Solutions of exercises set by the lecturer during the weekly lecture for the follwoing lecture  1  Weekly  1.00 
Module Resources
Authors 
Title 
Publishers 
Year 
Hughes E & Hughes C 
Engineering Science 
Longman Scientific & Technical 
2006 
Meriam J & Kraige L 
Engineering Mechanics: Statics 
Wiley 
2003 
Hannah & Hiller 
Applied Mechanics 
Longman Scientific & Technical 
1995 
Roy R Craig 
Mechanics of Materials 
Wiley 
2011 








N/A
N/A
MDSolids software on pcs in the engineering computer classes
None