Class Project Personal Agenda

Group: Experimental
Topic: K1c, Fracture Toughness

Topic to be Covered:

• Definition of fracture toughness
  • Callister (124, 193-195, 777)
  • Dowling (6, 281)
  • Possible equations needed here
• Definition of K1c, the plane strain fracture toughness
  • Callister (192-194, 785)
  • Dowling (287-291)
  • Possible equations needed here
• Mathematical determination of K1c
  • Callister (193-197)
  • Dowling (291-297)
  • Equations will be needed for this section
  • Scanned pictures of crack examples will be needed for this section
• Examples of experiments used to determine K1c
  • Lab Manual for ESM 3046 / MSE 3364 (Experiment 6)
  • Dowling (302-307)
  • Possible MPEG move or scanned photographs to show the experiment and test specimen
• Comparison of fracture toughness for different type of materials
  • Callister (195)
  • Dowling (282-283, 309)
  • A table would be very useful in this section
• Explain usefulness and accuracy of K1c
  • Callister (191-197)
• The effect of grain size, thickness, and crack size and location on K1c
  • Callister (191-197)
  • Dowling (301-312)

Format of presentation:

• Typed paper of at least 1.5 pages long (most likely longer)
• Several equations and graphs must be presented
• Possible MPEG movie (if wanted) of K1c test (sample failing under tension in a universal testing machine).

References:

• Materials Science and Engineering: An Introduction. 3rd Edition, William D. Callister, Jr., John Wiley & Sons, Inc., 1994.
• Mechanical Behavior of Materials. Norman E. Dowling, Prentice Hall, Inc., 1993.
• Lab manual for ESM 3060
• Others to be added at a later date.

Page Maintained By: Matthew E. McMurtry

Most Recent Revision Tuesday, March 18, 1997

A copy of my original contract can be found at: http://sfbox.vt.edu:10021/M/mmcmurtr/MSE2094/project/agneda.html .