Journal
JOURNAL OF NUCLEAR MATERIALS
Volume 381, Issue 1-2, Pages 177-184Publisher
ELSEVIER SCIENCE BV
DOI: 10.1016/j.jnucmat.2008.07.034
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Spiral notch torsion fracture toughness test (SNTT) was developed recently to measure the intrinsic fracture toughness (K(IC)) of structural materials. The SNTT system operates by applying pure torsion to Uniform cylindrical specimens with a notch line that spirals around the specimen at a 45 degrees pitch. The K(IC) Values are obtained with the aid of a three-dimensional finite-element computer code, TOR3D-KIC. The SNTT method is uniquely suitable for testing a wide variety of materials used extensively in pressure vessel and piping structural components and weldments, including others Such as ceramics, their composites, and concrete. (C) 2008 Elsevier B.V. All rights reserved.
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