EM 564- Fracture Mechanics----Spring 2006
Ashraf F. Bastawros (bastaw@iastate.edu) 2347 Howe Hall
http://www.public.iastate.edu/~bastaw/ follow the link teaching
294-3039
Course Objective:
The objective of this course is to introduce students to design methodology to avoid
fracture and fatigue of engineering structures. Students will gain the mechanistic,
physical and mathematical understanding of fracture and fatigue. You will be introduced
to:
1.
2.
3.
4.
Basic fracture mechanics terminology and design concepts.
Linear and nonlinear mathematical formulation of fracture mechanics.
Fracture mechanisms in ductile and brittle materials.
Fatigue of structures and cumulative crack propagations. Application of wave optics
to materials research.
5. Experimental analysis of fracture mechanisms and material resistance to fracture.
6. Application of fracture mechanics.
Course Policies:
1. Homework:
- Assigned on a regular basis and will be due in class on the specified date
(as announced in class).
- Late homework will not be accepted without prior approval or valid
excuse.
- Consultation with other students to clear up confusion points is
encouraged. However, all submitted homework must be your own work.
2. Grading
HW ………………………..25%
Mid Term …………………25%
Term Paper ……………….20% (including cross grading and presentation!)
Final Exam …….……….…30%
- Letter grades will be given only for the final course grade and will be no lower
than the following grade scale:
-+
-+
A (93%), A (88%), B (85%), B ( 82%), B (78%), C (75%),
C (70%), …………………..
Textbook:
- S. Suresh, 1998, Fatigue of Materials, 2nd edition, Cambridge University Press,
Cambridge, England.
- T. L. Anderson, 2005, Fracture Mechanics, Fundamentals and Applications, 3rd edition,
CRC-Press, Florida, USA.
- Epstein, J.S., 1993, Experimental Technique in Fracture, VCH Pub. Inc., New York.
Tentative Course Outline:
1. Overview of fracture mechanics
2. Overview of setting a boundary value problem
3. Linear elastic fracture mechanics
4. Elastic plastic fracture mechanics
5. Materials aspect of fracture
6. Fatigue (concept and design)
7. Applications: Plastics, ceramics, composites, concrete.
8. Fracture Testing
Other topics to include of for independent study
Fracture of thin film and layered structures
Fracture of pressure sensitive materials
Dynamic fracture
Time dependent fracture (viscoelastic effect)