Misplaced Trust

Image Gallery

$Photo of fractured bolt and some nuts.$ $Photo of unfractured bolt and nuts.$ $Report of chemical analysis on the fractured and unfractured bolts.$ $Photo of fractured bolt's microstructure.$ $Photo of unfractured bolt's microstructure.$ $Photo of fracture surface.$ $SEM image of fracture surface.$ $SEM image of cracks in the fractured bolt.$ $Report of tensile test on unfractured bolt.$

Reading

Russell, Ken. "Report on Fractured Eyebolt." (PDF)

Assignments

Please prepare a short presentation on the Misplaced Trust case and evidence.

Please prepare a short presentation on Scanning Electron Microscopy.

Please prepare a short presentation on steel (not stainless) and what defines it (chemically and physically). Pay particular attention to the failure of steel (what kind of failures should occur?).

Further Reading

"Calamities" column: The Case of the Misplaced Trust