Abstract
The constraint correction methodology for defect assessment is not widely applied in fitness-for-service codes in the nuclear industry and there are no testing standards to account for low-constraint testing in the ductile-to-brittle transition region. The objective of this investigation is to illustrate an improved testing and evaluation methodology to obtain a low-constraint reference temperature T0 fulfilling improved quality criteria. Two types of specimen geometries are investigated: 10 × 10 mm2 cross-section single edge bend (SE(B)) and single edge tension (SE(T)) specimens with shallow and conventional a/W ratios, allowing for varying levels of constraint. New quality assurance measures related to the selection of testing temperature, crack front straightness, and compliance for low-constraint specimens are applied. This work impacts the development of quality criteria for future low-constraint testing standards.
| Original language | English |
|---|---|
| Title of host publication | Proceedings of ASME 2025 Pressure Vessels & Piping Conference (PVP2025) |
| Publisher | American Society of Mechanical Engineers (ASME) |
| Number of pages | 8 |
| Volume | Volume 1: Codes & Standards |
| ISBN (Electronic) | 978-0-7918-8904-6 |
| DOIs | |
| Publication status | Published - 2025 |
| MoE publication type | A4 Article in a conference publication |
| Event | ASME 2025 Pressure Vessels and Piping Conference, PVP 2025 - Montreal, Canada Duration: 20 Jul 2025 → 25 Jul 2025 |
Conference
| Conference | ASME 2025 Pressure Vessels and Piping Conference, PVP 2025 |
|---|---|
| Country/Territory | Canada |
| City | Montreal |
| Period | 20/07/25 → 25/07/25 |
Keywords
- fracture toughness
- low-constraint
- Master Curve
- small specimens
- testing