SEDL / STP / STP888-EB / STP33012S

Subsized Bend and Charpy V-Notch Specimens for Irradiated Testing

Lucas, GE
University of California, Santa Barbara, CA

Odette, GR
University of California, Santa Barbara, CA

Sheckherd, JW
University of California, Santa Barbara, CA

McConnell, P
Fracture Control Corporation, Goleta, CA

Perrin, J
Fracture Control Corporation, Goleta, CA

Pages: 19    Published: Jan 1986

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Abstract

Characterization of the fracture resistance of structural materials from specimens small in volume is an essential element of fission and fusion reactor design and alloy development. In this study ⅓-sized Charpy V-notch specimens and small bend bars ranging in thickness down to 2.5 mm have been investigated. Techniques have been developed for fabricating these specimens and testing them over a temperature range of 170 to 590 K under static and dynamic conditions. Tests have been performed to extract fracture mechanics parameters (K^Ic, J^Ic) and fundamental material parameters (e.g., micro-cleavage fracture stress σ*^f) and to examine behavior anticipated in thin wall ferritic structures at temperatures corresponding to the lower shelf.