Accession Number:

ADA202703

Title:

Fractographic Analysis of a Failed Crane Bolt

Descriptive Note:

Final rept.

Corporate Author:

ARMY ARMAMENT RESEARCH DEVELOPMENT AND ENGINEERING CENTER WATERVLIET NY BENET LABS

Personal Author(s):

Report Date:

1988-11-01

Pagination or Media Count:

21.0

Abstract:

A failed crane bolt was examined by scanning electron microscopy to determine its failure mode. Failure occurred by fatigue crack initiation at the root of a thread with subsequent propagation by fatigue through essentially the entire approx. 0.7-inch diameter cross section of the bolt. Keywords Failure analysis Fracture mechanics Fractography Fatigue Metal fatigue.

Subject Categories:

  • Fabrication Metallurgy
  • Couplers, Fasteners and Joints

Distribution Statement:

APPROVED FOR PUBLIC RELEASE