Iğdır University Lifelong Learning Programme

Description of Individual Course Units

Course Unit Code	Course Unit Title	Type of Course Unit	Year of Study	Semester	Number of ECTS Credits
MTM-23-106	STRESS AND DAMAGE ANALYSIS	Elective	1	2	6

Level of Course Unit

Second Cycle

Objectives of the Course

Measuring the stresses in material samples or structures, learning the stress types that cause damage To learn the causes of damage in machine elements and systems To teach the techniques used in damage analysis

Name of Lecturer(s)

Doktor Öğretim Üyesi Gökçen AKGÜN

Learning Outcomes

To learn the techniques of recognizing Strain Gauges and sticking them to the material surface Learning to measure strain and stress on different material surfaces with experimental applications Principles regarding damage analysis Being able to analyze a machine damage To have knowledge about damage types To provide measures to prevent the recurrence of the damage

Mode of Delivery

Daytime Class

Prerequisites and co-requisities

Recommended Optional Programme Components

Course Contents

Definition of stress, stress-strain relations, basic elasticity equations and plane-elasticity theory, Fundamental fracture mechanics; Strain measurement methods: electrical-resistance type strain gauges, strain-gauge circuits, Strain analysis methods, Material behavior under stress, strain and fracture, fracture types and affecting factors, impact test, damage and damage analysis, methodology, process and material-dependent damage types. Stages of damage analysis will be examined and damage types will be discussed in detail. Different types of fracture damage mechanisms will be examined and the types of damage frequently seen in machine elements and systems will be analyzed. Among these damage types, fatigue, corrosion, stress corrosion, corrosion fatigue, hydrogen embrittlement, creep, friction and wear damage types will be examined in detail and the precautions to be taken to prevent similar damage types will be explained.

Weekly Detailed Course Contents

Week	Theoretical	Practice	Laboratory
1	Definition of stress and strain, Stress-strain relations, Hooke's law, Generalized Hooke's law
2	Basic elasticity equations and plane elasticity theory, Basic fracture mechanics
3	Strain measurement methods: Electric-resistance type strain gauges, Strain-gauge circuits Applications with electrical-resistance type strain gauges
4	Applications with electrical-resistance type strain gauges Strain analysis methods: optical stress analysis methods
5	Fracture and fracture mechanics Brittle fracture - Ductile fracture
6	The importance and types of damage analysis
7	Fatigue Damages
8	Midterm Exam
9	Fatigue Damages
10	Fracture Damages
11	Creep Damages
12
13	Friction and Wear Damages Welding Damages
14	Final Exam

Recommended or Required Reading

Eryürek, B., Hasar Analizi, Birsen Yayınevi, İstanbul, 1993. Prof. Dr. İrfan Ay - Hasar Analizi Ders Notları -2012 Prof. Dr. Ramazan KAYACAN Gerinme ve Gerilme Ölçme Ders Notları Experimental Stress Analysis by Dally, J.W. and Riley, W.F., 1991 Advanced Strength and Applied Stress Analysis by Richard G. Budynas, 1998 Failure Analysis of Engineering Materials, Charles Brooks, Ashok Choudhury, McGraw Hill,2002 ASM Handbook Volume 11: Failure Analysis and Prevention, R.J. Shipley and W.T. Becker, ASM International, 2002. CADDELL, R. M., Deformation and Fracture of Solids, Prentice-Hall, Inc., New Jersey, 1980.

Planned Learning Activities and Teaching Methods

Assessment Methods and Criteria

Term (or Year) Learning Activities	Quantity	Weight
Midterm Examination	1	40
Project Presentation	1	60
SUM		100
End Of Term (or Year) Learning Activities	Quantity	Weight
Final Examination	1	100
SUM		100
Term (or Year) Learning Activities		40
End Of Term (or Year) Learning Activities		60
SUM		100

Language of Instruction

Turkish

Work Placement(s)

Workload Calculation

Activities	Number	Time (hours)	Total Work Load (hours)
Midterm Examination	1	40	40
Final Examination	1	55	55
Project Presentation	1	85	85
TOTAL WORKLOAD (hours)			180

Contribution of Learning Outcomes to Programme Outcomes

LO1

* Contribution Level : 1 Very low 2 Low 3 Medium 4 High 5 Very High