FATIGUE CRACK GROWTH RATE TESTING OF GUN STEELS

Authors
  1. Morrison, J.
  2. Laforce, C.H.
Corporate Authors
Defence Research Establishment Pacific, Victoria BC (CAN);Defence Research Establishment Valcartier, Valcartier QUE (CAN)
Abstract
The experimental measurement of fatigue crack growth rates is an integral part of the fracture mechanics approach to safe life estimation in structures subjected to cyclical loading. To assess the variation in crack growth properties, data has been collected from five different gun steels from various sources. The experimental, analytical and statistical techniques are described, and an assessment is made of the applicability of a single growth rate expression. There are significant differences in strength, toughness and extent of autofrettage between these gun steels, and a correspondingly wide range of fatigue crack growth rates has been encountered.
Date of publication
15 Nov 1986
Number of Pages
7
Reprinted from
J of Pressure Vessel Technology, vol 108, 1986, p 507-513
DSTKIM No
87-01134
CANDIS No
49976
Format(s):
Hardcopy;Originator's fiche received by DSIS

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