Module Title:   Materials Failure Analysis

Module Credit:   10

Module Code:   ENG3076M

Academic Year:   2015/6

Teaching Period:   Semester 1

Module Occurrence:   A

Module Level:   FHEQ Level 6

Module Type:   Standard module

Provider:   Engineering

Related Department/Subject Area:   Engineering: Materials and Medical (not in use)

Principal Co-ordinator:   Dr CS Wright

Additional Tutor(s):   -

Prerequisite(s):   ENG1003M

Corequisite(s):   None

Aims:
To develop an understanding of key factors which influence failure of engineering structures and components subjected to static and dynamic loads and the application of analytical methods of failure prediction / prevention. Learning outcomes will be assessed in the formal examination.

Learning Teaching & Assessment Strategy:
The theoretical concepts are developed in formal lectures supported by case studies to illustrate both specific failure modes and the application of analytical design methods which can be used to prevent or predict failure

Lectures:   24.00          Directed Study:   74.00           
Seminars/Tutorials:   0.00          Other:   0.00           
Laboratory/Practical:   0.00          Formal Exams:   2.00          Total:   100.00

On successful completion of this module you will be able to...

1 Critically assess the micro-mechanisms of important failure modes in engineering structures and how these are influenced by material and environmental factors.

On successful completion of this module you will be able to...

2 Apply analytical techniques to predict or prevent failure of engineering structures or components subjected to static and dynamic loading.

On successful completion of this module you will be able to...

3 Demonstrate an ability to evaluate and interpret data.

  Examination - closed book 2.00 100%
 
  Examination - closed book

Outline Syllabus:
Illustrative case studies of failures in Engineering Structures and components (e.g. Bridges, shafts, bearings, gears, internal combustion engine components). Discussion of the importance of avoiding degradation failure (wear) or catastrophic failure (fracture, creep, fatigue).

Description of the micro-mechanisms of failure in metallic materials; abrasive, adhesive and fretting wear, ductile failure, brittle fracture, creep, fatigue mechanisms. Material / environmental factors which influence these failure mechanisms. Origin of failure initiating defects in manufactured products.

Principles of linear elastic fracture mechanics and its application in design to avoid failure under monotonic loading - Examples of the application of fracture mechanics in structural design.

Fatigue, Material behaviour under cyclic loading - cyclic softening /hardening, Factors that influence fatigue life, Fatigue as a damage accumulation process - Miner`s Law. - Use of fracture mechanics to predict fatigue crack growth rates - Paris -Erdogan law, Strain-life and Stress-life approaches to fatigue life prediction under constant amplitude loading and variable amplitude loading, Prediction of the effect of mean stress /strain on fatigue life

Version No:  2