2017-Sustainable Industrial Processing Summit
SIPS 2017 Volume 6. Mathematics, Multiscale Mechanics, Coatings
| Editors: | Kongoli F, Masset P, Rokicki P |
| Publisher: | Flogen Star OUTREACH |
| Publication Year: | 2017 |
| Pages: | 142 pages |
| ISBN: | 978-1-987820-71-3 |
| ISSN: | 2291-1227 (Metals and Materials Processing in a Clean Environment Series) |
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Fracture Mechanics Tests with the Use of Miniaturized Test Specimens
Libor Kraus1; Martin Rund2; Jan Dzugan3; Danile Melzer4;1COMTES FHT INC., Dobrany, Czech Republic; 2COMTES FHT, Dobrany, Czech Republic; 3COMTES FHT, Donrany, Czech Republic; 4, , ;
Type of Paper: Regular
Id Paper: 117
Topic: 1
Abstract:
Determination of mechanical properties with the use of sub-sized specimens is a topic of high interest nowadays. The application of the sub-sized samples is quite wide for all cases where only limited amount of the experimental material is available such as evaluation of additively manufactured products properties, residual life of in-service components, properties determination of developed nanostructured materials, assessment of dilatometric samples used for thermal and thermo-mechanical treatment development, local properties of components, weld joints, etc. Concerning this large application field, it would be very useful to prepare a standard for small size samples, especially for most demanded material properties: tensile properties, notch impact transition temperature, fatigue properties, fracture toughness and creep. The current work is dealing with fracture toughness employing master curve and J-R curve approaches for fracture toughness parameters determination with the use mini specimens. The experimental material is reactor pressure vessel steel provided in the form of 2T-CT specimens. These specimens are tested and from the broken halves 1T-CT specimens are machined as well as full-size Charpy specimens, mini 0.16T-CTs and mini Charpy specimens. Results of fracture toughness tests achieved for different size specimens are subsequently compared and the size effect in assessed.
Keywords:
Characterization; Mechanics; Metals; Steel;References:
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