What failure analysis can do for the machine designer, operator, diagnostician, and prognostician
A competent failure analyst can often determine whether the machine design was nominally adequate with a half hour time slot for visual examination. The use of macrofractography, a specialized type of visual examination, can allow trained personnel to determine whether improper alignment or component imperfections may have contributed to an unexpected failure. Case studies will be presented. Some examples of “learning from the graveyard” and how that can facilitate improvements in design, manufacturing, and operations will be described.
Keywordsfatigue fractography mechanical testing metallography overload stress corrosion stress state visual examination
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- 1.N.E. Dowling: Mechanical Behavior of Materials, Second Edition, Prentice-Hall, Inc., Upper Saddle River, NJ, 1999, p. 492.Google Scholar
- 2.N.E. Dowling: Mechanical Behavior of Materials, Second Edition, Prentice-Hall, Inc., Upper Saddle River, NJ, 1999, p. 651.Google Scholar
- 3.Failure Analysis and Prevention, vol. 11, Metals Handbook, ASM International, 2002.Google Scholar
- 4.G.W. Powell, S.-H. Cheng, and C.E. Mobley, Jr.: A Fractography Atlas of Casting Alloys, Batelle Press, Columbus, Richland, 1992, p. VIII-6.Google Scholar