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Journal of Failure Analysis and Prevention

, Volume 11, Issue 6, pp 595–602 | Cite as

Failure Analysis of a Commercial Brush Chipper Hood

  • David Norfleet
  • Michael Stevenson
  • John Wilkinson
  • Matthew Kenner
  • Dennis Brickman
Case History---Peer-Reviewed

Abstract

The present study describes the failure analysis and accident reconstruction of a brush chipper, whereby an initial impact from the rotating disk with the chipper’s hinged hood precipitated a chain of events that culminated with the ejection of the hood from the chipper. This analysis specifically addresses whether or not the welds and/or four additional (aftermarket) retaining bolts would have been sufficient to contain the energy from the disk strike, thus prohibiting the hood from departing the machine and striking the operator.

Keywords

Failure analysis Accident reconstruction Weld strength Damage Mechanical behavior 

References

  1. 1.
    ANSI Z133.1: American National Standard for Arboricultural Operations—Safety Requirements. American National Standards Institute (2006)Google Scholar
  2. 2.
    Juvinall, R., Marshek, K.: Fundamentals of Machine Component Design, 2nd edn. Wiley, New York (1991)Google Scholar

Copyright information

© ASM International 2011

Authors and Affiliations

  • David Norfleet
    • 1
  • Michael Stevenson
    • 1
  • John Wilkinson
    • 1
  • Matthew Kenner
    • 1
  • Dennis Brickman
    • 1
  1. 1.Engineering Systems Inc.AuroraUSA

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