Abstract
Standards have traditionally required that fracture
toughness specimens be the full thickness of the base
material. However, this requirement may be unnecessary,
especially if minimum specimen size dimensions based on
plastic zone are met and the subsized specimens are
statistically adjusted for the size effect. The current
paper presents the results for full-thickness
proportional Single Edge Notched Bending (SENB) specimens
according to BS7448-1 that are 25 mm by 50 mm in
cross-section and then compares these results to
specimens of the same material that are 10 mm by 20 mm in
cross section. The result is that for a temperature near
the lower portion of the transition curve (-60°C to
-70°C), the subsize specimens are in very good agreement.
These results hold for two different loading rates. After
correction for statistical size effect, the fracture
toughnesses of the subsize specimens are within 10% of
the full-size specimens. This is conservative. The
difference is attributed to the statistical nature of
fracture in the transition region
| Original language | English |
|---|---|
| Title of host publication | ASME 32nd International Conference on Ocean, Offshore and Arctic Engineering |
| Subtitle of host publication | Materials Technology: Ocean Space Utilization |
| Publisher | American Society of Mechanical Engineers (ASME) |
| Number of pages | 9 |
| Volume | 3 |
| ISBN (Print) | 978-0-7918-5535-5 |
| DOIs | |
| Publication status | Published - 2013 |
| MoE publication type | A4 Article in a conference publication |
| Event | ASME 2013 32nd International Conference on Ocean, Offshore and Arctic Engineering, OMAE 2013 - Nantes, France Duration: 9 Jun 2013 → 14 Jun 2013 Conference number: 32 |
Conference
| Conference | ASME 2013 32nd International Conference on Ocean, Offshore and Arctic Engineering, OMAE 2013 |
|---|---|
| Abbreviated title | OMAE 2013 |
| Country/Territory | France |
| City | Nantes |
| Period | 9/06/13 → 14/06/13 |