Journal Published Online: 01 November 1981
Volume 9, Issue 6

An Evaluation of a Load-Line Extensometer for Elastic-Plastic Fracture Toughness Testing

CODEN: JTEVAB

Abstract

A load-line extensometer using linear variable differential transformer (LVDT) displacement transducers was developed and evaluated for use in multispecimen and single specimen J value versus crack growth (J-R) curve testing. The LVDT extensometer accuracy and repeatability was compared with that of clip gage extensometers commonly used in fracture toughness evaluatons. Data on load versus displacement and J value versus crack growth for ASTM A533, Grade B, Class 1 (Unified Numbering System [UNS] K12539) steel obtained by using both extensometers were also compared.

Author Information

Williams, JA
W/A-124, Westinghouse Hanford Co., Richland, Wash.
Carlson, KW
W/A-124, Westinghouse Hanford Co., Richland, Wash.
Pages: 6
Price: $25.00
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Details
Stock #: JTE11235J
ISSN: 0090-3973
DOI: 10.1520/JTE11235J