Class Information
Course Description
Mechanisms of fracture and crack growth; stress analysis; crack tip plastic zone; energy principles in fracture mechanics; fatigue-crack initiation and propagation; fracture mechanic design and fatigue life prediction. Analytical, numerical, and experimental methods for determination of stress intensity factors. Current topics in fracture mechanics.
Syllabus
Class information
- Hours: Tuesdays and Thursdays 12:40-1:55 pm ET (11:40am-10:55 pm CT)
- Location: UTK: Doherty 406 UTSI: Main Academic Building E110
Office Hours
Tuesday 2:15-4:15 pm and Wednesday 2:15-3:15 pm ET [one_third last=”no”]Office: F245, Main academic building, UTSI[/one_third] [one_third last=”no”]Phone: (931) 393-7334[/one_third] [one_third last=”yes”][social_links colorscheme=”” linktarget=”_self” rss=”” facebook=”” twitter=”” dribbble=”” google=”” linkedin=”” blogger=”” tumblr=”” reddit=”” yahoo=”” deviantart=”” vimeo=”” youtube=”” pinterest=”” digg=”” flickr=”” forrst=”” myspace=”” skype=”skype:rpabedi?add”][/one_third]
Course requirements
- Homework 20% + 5% (extra credit)
- Term project 20%: Use commercial software to evaluate stress intensity factor; Simple computations with cohesive and damage models.
- Report and presentation on a topic on fracture 20%: 4-page report and 10-12 minute presentation at the end of the semester. Individual topics and references will be chosen by the instructor and the student.
- Midterm exam 15%
- Final exam 25%
Detail of course topics
Presentations
Announcements
- Midterm exam, Take-home 11/01/2014, Due 11/13/2014
- No class on 10/9/2014
- Term paper presentations: Tuesday 12/09/2014 11 am-2pm EST (10am-1pm CST)
- Final Exam: Thursday 12/11/2014 11 am-2pm EST (10am-1pm CST)
Assignments
- HW1, Due 10/2/2014
- HW2, Due 10/20/2014
- Midterm, Due 11/13/2014
- Ansys Term project, Due 12/09/2014
- HW3, Due 12/04/2014
- Return of term papers and presentation (no more than 10-12 minutes), 12/09/14, 11:10 am-1:55 pm.
Class timeline
RA: reading assignmentReference made to section numbers in “details of course topics”
Hand-written notes: pdf onenote
- 08/21/2014 RA: 2. History, 3.1 Fracture classification
- 08/26/2014 Lecture: notes Video: Flash, mp4 RA: 4.1.1-4.1.3 LEFM Griffith energy approach
- 08/28/2014 Lecture: notes Video: Flash, mp4 RA: 4.1.4 Energy Release Rate (G) and 4.1.4 Crack Stability
- 09/02/2014 Lecture: notes Video: Flash, mp4 RA: 4.1.4 R and P curves
- 09/04/2014 Lecture: notes Video: Flash, mp4 RA: 4.2.1-4 stress solution at the crack tip
- 09/09/2014 Lecture: notes Video file corrupted RA: 4.2.1-4 stress solution at the crack tip
- 09/11/2014 Lecture: notes Video: Flash, mp4 RA: 4.2.1-4 stress solution at the crack tip
- 09/16/2014 Lecture: notes Video: Flash, mp4 RA: 4.2.5. Relation between K & R (SIF & Resistance), 4.2.6. SIF Handbooks, design
- 09/18/2014 Lecture: notes Video: Flash, mp4 RA: 5.2.1 Irwin, Dugdale, and Barenbolt models
- 09/23/2014 Lecture: notes Video: Flash, mp4 RA: 5.2.1 and 5.2.2 2D plastic zone models
- 09/25/2014 Lecture: notes Video: Flash, mp4 RA: 5.2.2 2D plastic zone models and
- 09/30/2014 Lecture: notes Video: Flash, mp4 RA: 5.3 J integral (5.3.1-5.3.2)
- 10/02/2014 Lecture: notes Video: Flash, mp4 RA: 5.3 J integral (5.3.2-5.3.3)
- 10/07/2014 Lecture: notes Video: Flash, mp4 RA: 5.3 J integral (5.3.4-5.3.6)
- 10/14/2014a Lecture: notes Video: Flash, mp4
- 10/14/2014b Lecture: notes Video: Flash, mp4 RA: 5.3 J integral (5.3.6.7)
- 10/21/2014 Lecture: notes Video: Flash, mp4 RA: 5.4 Crack tip opening displacement (CTOD), 6. Computational Fracture Mechanics (6.1.1)
- 10/23/2014 Lecture: notes Video: Flash, mp4 RA: 6. Computational Fracture Mechanics (6.1.2)
- 10/28/2014 Lecture: notes Video: Part1, Part2 RA: 6. Computational Fracture Mechanics (6.1.3)
- 10/30/2014 Lecture: notes Video: Flash, mp4 RA: 6. Computational Fracture Mechanics, Extraction of K (SIF), G (6.1.3)
- 11/04/2014 Lecture: notes Video: Flash, mp4 RA: 6. Computational Fracture Mechanics, J integral (6.1.4)
- 11/06/2014 Lecture: notes Video: Flash, mp4 RA: 6. Computational Fracture Mechanics, Finite Element mesh design for fracture mechanics (6.1.5)
- 11/11/2014 Lecture: notes Video: Flash, mp4 RA: 6. Computational Fracture Mechanics, Computational crack growth (6.1.6)
- 11/13/2014 Instructional movie on using Ansys can be found under “Ansys Term Project Above” RA: 6.2. Traction Separation Relations (TSRs)
- 11/18/2014 Lecture: notes Video: Flash, mp4 RA: 4.3 Mixed mode fracture,
- 11/20/2014 Lecture: notes Video: Flash, mp4 RA: 8.1-8.3 Fatigue regimes, S-N curves, Fatigue crack growth models
- 11/25/2014 Lecture: notes Video: Flash, mp4 RA: 8.3 Fatigue crack growth models, 8.4 Variable and random load
- 12/02/2014 Lecture: notes Video: Flash, mp4 RA: 9. Dynamic fracture mechanics and rate effects (FYI: not included in the exam)
Selected Bibliography
- T. L. Anderson, Fracture Mechanics: Fundamentals and Applications, 3rd Edition, CRC Press, USA, 2004 (main textbook).
- D. Broek, Elementary Engineering Fracture Mechanics, 4th Revised Edition, Springer, 1982 (or reprint 2013).
- B. Broek, The Practical Use of Fracture Mechanics, Springer, 1998.
- S. Murakami, Continuum Damage Mechanics: A Continuum Mechanics Approach to the Analysis of Damage and Fracture, Springer Netherlands, Dordrecht, 2012.
- S. Suresh, Fatigue of Materials. 2nd ed. Cambridge University Press, 1998.
- L.B. Freund, Dynamic Fracture Mechanics, Cambridge University Press, 1998.
- B. Lawn, Fracture of Brittle Solids, Cambridge University Press, 1993.
- M.F. Kanninen and C.H. Popelar, Advanced Fracture Mechanics, Oxford Press, 1985.
- R.W. Hertzberg, Deformation and Fracture Mechanics of Engineering Materials. 5th ed. John Wiley & Sons, Inc., 2012 (material focus).
- S Al Laham, Stress Intensity Factor and Limit Load Handbook, British Energy Generation Limited, 1998.
-
H Tada, P.C. Paris, G.R. Irwin, Stress Analysis of Cracks Handbook, 3rd ed., ASME Press. 2000
Useful online courseware and links
- Presentation on Fracture Mechanics by Dr. N. V. Phu from University of Adelaide. With special thanks to Dr. Phu, the majority of course presentations are based on Dr. Phu’s presentations.
- S. Suresh, Fracture and Fatigue, MITOpen courseware.
- V.E. Saouma, Fracture Mechanics lecture notes, University of Colorado, Boulder.
- P.J.G. Schreurs, Fracture Mechanics lecture notes, Eindhoven University of Technology (2012).
- A.T. Zender, Fracture Mechanics lecture notes, Cornell University.
- K. Ramesh, Engineering fracture mechanics lecture videos, IIT, Madras, India.
- L. Zhigilei, MSE 2090: Introduction to the Science and Engineering of Materials, University of Virginia: Excellent lecture notes on material preliminaries such as atomic structure (ch2), crystalline solids (ch3), imperfections (ch4), mechanical properties (ch6), dislocation (ch7), and failure (ch8).