Study-Unit Description

Study-Unit Description

CODE MME4002

 
TITLE Elasticity, Plasticity and Fracture Mechanics

 
UM LEVEL 04 - Years 4, 5 in Modular UG or PG Cert Course

 
MQF LEVEL Not Applicable

 
ECTS CREDITS 4

 
DEPARTMENT Metallurgy and Materials Engineering

 
DESCRIPTION Syllabus

- Elasticity
Types of stresses. Stress at a point and on an oblique plane - direct, shear and resultant stresses. Principles stresses and strains in 3 dimensional - Mohr's circle representation.
Graphical representation of the state of the stress at a point and on a general plane. Stress equations of equilibrium. Stress-strain relationships.
Applications of the stress function concept to various engineering problems.
Plasticity.
Plastic behaviour of solids - dislocation dynamics, influence of strain rate and temperature. Effects of defects and work hardening, mechanisms of slip. Textures in materials.

- Plasticity - plastic bending of rectangular sections, shape factor symmetrical sections, partially plastic bending of unsymmetrical sections. Torsion of strained shafts, plastic torsion of tubes, plastic bending and torsion of case hardened materials.

- Fracture Mechanics
Fundamentals of fracture - ductile and brittle fracture.
Principles of fracture mechanics - stress concentration, stress analysis of cracks, fracture toughness, design using fracture mechanics.
Impact fracture toughness, fatigue fracture, and creep.

Reference Textbooks

- Timoshenko & Goodier, Theory of Elasticity.
- Timoshenko S. & Woinsky-Kziezer, Theory of Plates and Shells.
- Ewalds H.L., Fracture Mechanics, Arnold Dum.
- Broek David, Elementary Engineering Fracture Mechanics, Kluwer Academic Publishers.
- Harherley & Hutchinson, An Introduction to Textures in Metals, Institute of Metals.
- Smallman R.A., Modern Physical Metallurgy, Butterworth.

 
RULES/CONDITIONS Before TAKING THIS UNIT YOU MUST TAKE MME2001 AND TAKE MEC3403

 
STUDY-UNIT TYPE Lecture

 
METHOD OF ASSESSMENT
Assessment Component/s Sept. Asst Session Weighting
Assignment No 10%
Examination (2 Hours) Yes 90%

 
LECTURER/S Glenn J. Cassar

 

 
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It should be noted that all the information in the description above applies to study-units available during the academic year 2025/6. It may be subject to change in subsequent years.

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