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Course Information
Course Unit Title : Failure Mechanism of Rocks
Course Unit Code : 01MAD9610
Type of Course Unit : Optional
Level of Course Unit : Second Cycle
Year of Study : Preb
Semester : 255.Semester
Number of ECTS Credits Allocated : 6,00
Name of Lecturer(s) : ---
Course Assistants :
Learning Outcomes of The Course Unit : Learn the concepts of fracture mechanics
Be able to design experiments for fracture toughness of rocks
Be able to determine the fracture toughness of rocks
Mode of Delivery : Face-To-Face
Prerequisities and Co-requisities Courses : Unavailable
Recommended Optional Programme Components : Unavailable
Course Contents : Fracture mechanics concepts, stress at a crack tip. The Griffith criterion. Irwin's modification to the Griffith theory. Mechanism of fracture and crack growth. The elastic crack tip stress field. The crack tip plastic zone. The energy principle. The energy release rate criterion for crack growth. Linear Elastic Fracture Mechanics. Basic Modes (Modes I, II, and III). Mixed mode crack initiation theories. Numerical, analytical and experimental methods for the determination of stress intensity factors. Elastic-plastic fracture mechanics. Experimental techniques. Fatigue crack propagation. Determination of rock fracture toughness.
Languages of Instruction : Turkish
Course Goals : Understand the basic concepts of fracture mechanics
Understand the fracture behavior of rocks
Perform experiments on rock fracture toughness
Course Aims : Give the basic concepts of fracture mechanics, fracture damage, introduce the concepts of energy, understand the breaking behavior of rocks, stress intensity factors, determination of fracture energy and fracture process zone, perform rock fracture toughness experiments.
WorkPlacement  
Recommended or Required Reading
Textbook : Sengun, N., 2009. Rock fracture toughness. Course note
Additional Resources : 1. Deformation and fracture mechanics of engineering materials, Hertzberg, Wiley 2. Whittaker, B.N., Singh, R.N., Sun, G., 1992. Rock Fracture Mechanics - Principles, Design and Applications, p.570, Elsevier, Amsterdam. 3. Şengün, N., 2009. Kayaçların kırılma tokluğu ve gevrekliğinin dairesel testereler ile kesme verimi üzerine etkileri. Doktora Tezi, Süleyman Demirel Üniversitesi, Fen Bilimleri Enstitüsü, İsparta (yayımlanmamış). 4. Paşa Yayla,"Kırılma Mekaniği",Çağlayan kitabevi, 2007. Konu ile ilgili ders notları
Material Sharing
Documents :
Assignments :
Exams :
Additional Material :
Planned Learning Activities and Teaching Methods
Lectures, Practical Courses, Presentation, Seminar, Project, Laboratory Applications (if necessary)
ECTS / Table Of Workload (Number of ECTS credits allocated)
Student workload surveys utilized to determine ECTS credits.
Activity :
Number Duration Total  
Course Duration (Excluding Exam Week) :
14 3 42  
Time Of Studying Out Of Class :
14 3 42  
Homeworks :
3 15 45  
Presentation :
0 0 0  
Project :
0 0 0  
Lab Study :
0 0 0  
Field Study :
0 0 0  
Visas :
1 15 15  
Finals :
1 25 25  
Workload Hour (30) :
30  
Total Work Charge / Hour :
169  
Course's ECTS Credit :
6      
Assessment Methods and Criteria
Studies During Halfterm :
Number Co-Effient
Visa :
1 50
Quiz :
1 20
Homework :
1 30
Attendance :
0 0
Application :
0 0
Lab :
0 0
Project :
0 0
Workshop :
0 0
Seminary :
0 0
Field study :
0 0
   
TOTAL :
100
The ratio of the term to success :
40
The ratio of final to success :
60
TOTAL :
100
Weekly Detailed Course Content
Week Topics  
1 Fracture mechanics and general concepts
 
2 Historical fracture mechanics
 
3 Linear elastic fracture mechanics
 
4 Crack propagation mechanisms
 
5 Energy balance approach
 
6 Stress intensity factor approach
 
7 Crack tip fracture zone
 
8 Quiz
 
9 Fracture toughness concept
 
10 Fracture toughness tests
 
11 Fracture toughness tests
 
12 Fracture toughness tests
 
13 Parameters affect to fracture toughness
 
14 Parameters affect to fracture toughness