SYMPOSIA PAPER Published: 01 January 1976
STP28646S

Pilot Study of the Fracture Arrest Capabilities of A553B Steel

Source

The arrest properties of A533B steel are derived from measurements of the crack velocity and crack length at arrest using: (a) 140 by 400-mm duplex double-cantilever-beam (DCB) specimens with hardened and welded-on AISI 4340 steel starter sections, (b) a wedge-loading procedure, and (c) the Timoshenko beam-on-a-generalized-foundation dynamic analysis. Propagation and arrest events were studied at temperatures from −18 to 33°C (nil ductility temperature + 61°C) and involved fractures propagating in the A533B at velocities up to 710 ms−1 and for distances up to 159 mm. The arrest capability of the steel is expressed in terms of the propagating crack fracture energy for the corresponding toughness, KD, and the velocity dependence of these quantities. The thickness, crack velocity, and temperature dependences of KD and its relation to KIc and KIa are examined. At −18°C, KD = 129 MNm−3|2, and Ka = 76 MNm−3|2. This method of evaluation promises to provide access to the full range of arrest properties of low and medium strength structural steels.

Author Information

Hahn, GT
Battelle Columbus Laboratories, Columbus, Ohio
Hoagland, RG
Battelle Columbus Laboratories, Columbus, Ohio
Kanninen, MF
Battelle Columbus Laboratories, Columbus, Ohio
Rosenfield, AR
Battelle Columbus Laboratories, Columbus, Ohio
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Details
Developed by Committee: E08
Pages: 209–233
DOI: 10.1520/STP28646S
ISBN-EB: 978-0-8031-4676-1
ISBN-13: 978-0-8031-0318-4