HIGH ENERGY DYNAMIC SYSTEM FOR NOTCH ACUITY STUDIES

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Authors
  1. Bassim, M.N.
Corporate Authors
Defence Research Establishment Atlantic, Dartmouth NS (CAN);Manitoba Univ, Winnipeg MAN (CAN)
Abstract
This report describes a process of increasing the capacity of a specially designed Split Hopkinson BAR (SHB) system in order to fracture 12.7 mm thick compact tension specimens of 350 WT steel in both L-T and T-L orientations at temperatures of 0C and 15C. The change in design of the SHB resulted in significant increase in the impact energy applied on the specimens. Following the modification of the SHB, tests were conducted on compact tension specimens with different notch configurations. The results show that the energy capacity of the redesigned SHB increased. Due to this increased capacity, it was possible to effect complete fracture on all the specimens tested.
Keywords
High strain rate;Split Hopkinson Bar;Stretch zone;350 WT Steel;Shear Lip;Steel plates
Report Number
DREA-CR-98-431 — Contractor Report
Date of publication
01 Jan 1998
Number of Pages
33
DSTKIM No
98-02827
CANDIS No
509572
Format(s):
Hardcopy;Document Image stored on Optical Disk

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