Journal Published Online: 01 November 1997
Volume 25, Issue 6

A Tapered Double-Cantilever-Beam Specimen Designed for Constant- Testing at Elevated Temperatures

CODEN: JTEVAB

Abstract

A compact, constant stress intensity factor, side grooved, tapered double-cantilever-beam (T-DCB) specimen has been designed for measuring elevated temperature creep and fatigue crack growth rates. This specimen is much smaller than the standard DCB specimen generally used for studying corrosion fatigue in airframe materials and it can be easily accommodated in standard furnaces generally used in elevated-temperature fracture mechanics testing. The specimen possesses a constant-K region of 30 mm. This constant-K crack length range was first established analytically through detailed two- and three-dimensional finite-element analyses and the finite-element calculations were further verified experimentally through quantitative fractographic analysis using the striation measurement technique.

Author Information

Beres, W
Institute for Aerospace Research, National Research Council, Ottawa, Ontario, Canada
Koul, AK
Institute for Aerospace Research, National Research Council, Ottawa, Ontario, Canada
Thamburaj, R
Advanced Materials and Engineering Systems, Orenda Aerospace Corp., Mississauga, Ontario, Canada
Pages: 7
Price: $25.00
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Details
Stock #: JTE11493J
ISSN: 0090-3973
DOI: 10.1520/JTE11493J