Time. Thursday and Tuesday. 1:30-3:00 pm (Harvard University), 12:30-2:2:00 pm (University of Nebraska). First meeting: 1 February 2007

Place. Harvard University: Fairchild 102 (map). University of Nebraska: 111 Walter Scott Engineering Center

Course website (this page): http://imechanica.org/node/754

Instructors

• John W. Hutchinson, (617) 495-2848, hutchinson@husm.harvard.edu, Pierce 315, Skype: johnwhutchinson
• Zhigang Suo, 617-495-3789, suo@deas.harvard.edu, Pierce 309, Skype: zhigangsuo

Teaching fellows

• Zhen Zhang, (617)-384-7894, zhangz@deas.harvard.edu, Pierce Hall 406, Skype: flyinskypku.
• Xiangfa Wu, (402)-472-1680, xfwu@unlserve.unl.edu, W317.4, Nebraska Hall. Office Hour: Thursday 2:15-5:00 pm, Skype: xiang-fa.

Students and why they take this course.

Lectures

Homework Sets

Auxilary notes

• J. W. Hutchinson, Notes on Nonlinear Fracture Mechanics
• J. W. Hutchinson and Z. Suo, Mixed-Mode Cracking in Layered Materials.
• J. W. Hutchinson, Fracture Mechanics of Thin Films and Multilayers.
• Z. Suo,  Reliability of interconnect structures.

Online resources

• William D. Nix, Mechanical Properties of Thin Films.
• Piet Schreurs, Fracture Mechanics.
• Z. Suo, Solid Mechanics.
• C.H. Wang, Introduction to Fracture Mechanics
• Alan Zehnder, Fracture Mechanics Book.

Offline resources

• B. Lawn, Fracture of Brittle Solids, Cambridge University Press, 2004.
• H. Tada, P.C. Paris and G.R. Irwin, The Stress Analysis of Cracks Handbook, Del Research, St. Louis, MO., 1985.
• J.M. Barsom and S.T. Rolfe, Fracture & Fatigue Control in Structures, 2nd ed. Prentice-Hall, 1987.
• L.B. Freund and S. Suresh, Thin Film Materials, Cambridge University Press, 2003.
• S. Suresh, Fatigue of Materials, Cambridge University Press, 2006
• S.P. Timoshenko and J.N. Goodier, Theory of Elasticity, McGraw-Hill, New York.

Brief Outline of Topics

• Fracture Mechanics. Energy release rate. Stress intensity factor. Mixed mode fracture. Representative solutions. Fracture specimens. Fracture toughness, crack growth resistance. Plastic zones. Plane stress vs. plane strain. Small scale yielding. J integrals. Cohesive zone modeling. (HRR field. A blunting crack tip. Fatigue. Environment-assisted cracking)
• Thin films and layered materials. Origin of residual stresses. Curvature of layered materials due to residual stresses. Channel cracks. Debonding. Delamination. Buckle-delamination.
• Composites. Toughening. Test specimens for delamination. Matrix cracking. Size effects. Bridging.

Remarks

• Prerequisite: a graduate course on solid mechanics.
• No textbook is required. Notes will be posted periodically.
• The posts concerning this course will have at least three tags: ES 242r, fracture mechanics, Spring 2007. Thus, the URL for all posts of this course is http://imechanica.org/taxonomy/term/551,32,528
• To be alerted of any new content added to this course, please subscribe to the RSS feed of the course. The URL of the feed is: http://imechanica.org/taxonomy/term/551,32,528/0/feed
• You can ask questions or add comments to the comment section of each post. You can also subscribe to the RSS feed for the comments to all the posts of this course: http://imechanica.org/crss/term/551

IT officers

• Thad Sze, tsze@deas.harvard.edu , 617-384-7749 (o), 617-290-1984(cell)
• Greg Morrow, gmorrow@fas.harvard.edu, 617-495-9429
• Jack Conlin, jconlin@mcb.harvard.edu, 617-495-1803, 617-285-1873(cell)
• John Gilliam (Univ. of Nebraska), jgilliam1@unl.edu, 402-472-2015, 402-472-3596 (control room)