|
"The Effect of Tensile Prestress on the Fatigue of Rock Drill Bits" Failure Prevention and Reliability 1987 (ASME DE v.9). New York, American Society of Mechanical Engineers, 1987, pp. 91-93 Dennis B. Brickman Fatigue failures of rock drill bits are investigated by examining the crack
patterns and stresses produced during the fabrication process using brittle
coating and strain gage rosettes. The interference fit associated with impact
wedging of carbide inserts produced a high tensile prestress which compromised
the fatigue life of the drill bit.
"Fire and Explosion Investigations: A Historical
and Hysterical Perspective" Kim R. Mniszewski and John Campbell A large body of cause-and-effect mythology has developed in fire
investigation. The lack of validity of common myths is reviewed, and new
forensic engineering analysis techniques discussed.
"Introduction to Fracture Mechanics" E. J. Ripling Until recently, blaming all structural fractures on discontinuities was
expedient since there was no quantitative way of identifying the major
contributing factors to service fractures. With the advent of fracture
mechanics, fractures can no be analyzed with a certainty never before possible.
The concepts of this new discipline are described.
"Photographic Documentation and Analysis in
Vehicle Accident Reconstruction" Crispin Hales and Dror Kopernik The use of the camera is increasingly important in vehicle accident
construction work. This paper reviews photographic methods and techniques
currently in use in accident reconstruction.
"Use of Computerized Thermodynamics Tools in
Fire/Explosion Investigation" Kim R. Mniszewski Several thermodynamics computer codes are useful in fire/explosion
investigations. Applications include the estimation of basic fuel material
properties and hazard properties. Codes by ASTM, NASA-Lewis, the Department of
Defense, and Department of Energy are discussed.
"Pepcon
Plant Fire/Explosion: A Rare Opportunity in Fire/Explosion Investigation" Kim R. Mniszewski Videotape of a fatal fire and explosion at a large ammonium perchlorate plant
allowed advanced investigative fire reconstruction techniques. This and other
engineering analyses were used to determine the complex sequence of events and
to determine possible causes of the explosion.
"Accident Investigation and Reconstruction Mapping
with Aerial Photography" Michael A. Dilich and John M. Goebelbecker A system for investigating and reconstructing vehicular accidents using
close-range aerial photography, the Accident Investigation and Reconstruction
with Aerial Photography (AIRMAP) utilizes a tethered blimp and suspended camera
in a close-range aerial survey technique. It produces high-resolution, color,
vertical photographs. Computer-generated graphics of physical evidence can be
superimposed over the image to produce a plan view photographic map easily
understood by a non-technical audience.
"Standards Opposing Spoliation
in Fire & Explosion Investigations" John A. Campbell Important information regarding fire and explosion accident investigation.
Copyright © 2006 Triodyne Inc. All Rights Reserved |
