EFFECT OF NOTCH ACUITY ON FRACTURE

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Authors
  1. Bassim, M.N.
  2. Matthews, J.R.
Corporate Authors
Manitoba Univ, Winnipeg MAN (CAN) Faculty of Engineering;Defence Research Establishment Atlantic, Dartmouth NS (CAN)
Abstract
Fracture studies of high strength low alloy steels at very high loading rates were conducted using a special Split Hopkinson Bar system equipped with a swing mechanism. Compact tension specimens were used in the investigation. Notch acuity was investigated by performing the tests on several induced notches ranging from spark erosion (EDM) to fatigue precraking followed by fracture. Both shear lips and stretch zones were measured on the broken specimens as a function of temperature. The effect of notch acuity on toughness (and toughness transition) was studied from the size of the shear lips.
Report Number
DREA-SR-97-002-PAP-25 — CONTAINED IN 98-00986
Date of publication
01 Oct 1997
Number of Pages
10
DSTKIM No
98-01011
CANDIS No
507228
Format(s):
Hardcopy;Document Image stored on Optical Disk

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