Weibull Statistics as a Basis for Assessment of Ductile-Brittle Transition Behavior
| Autor: | Young Jin Kim, Bong Sang Lee, Tae-hwi Lee, Jae-Boong Choi, Min-Chul Kim, Yoon Suk Chang |
|---|---|
| Rok vydání: | 2006 |
| Předmět: |
Toughness
Materials science business.industry Weibull modulus Tension (physics) Mechanical Engineering Structural engineering Finite element method Reliability engineering Stress (mechanics) Fracture toughness Brittleness Mechanics of Materials General Materials Science business Weibull distribution |
| Zdroj: | Key Engineering Materials. :931-934 |
| ISSN: | 1662-9795 |
| DOI: | 10.4028/www.scientific.net/kem.326-328.931 |
| Popis: | The objective of this paper is to investigate failure characteristics of SA508 carbon steel in ductile-brittle transition temperature region. To achieve this goal, a series of finite element analyses as well as fracture toughness tests are performed for pre-cracked V-notch specimens. An assessment of failure probabilities is, then, carried out employing Weibull stress models with different rank probability options. Finally, a prototype of toughness scale diagram is derived through comparison of estimated fracture toughness data with those for compact tension specimens. The present results can be utilized to found a basis of realistic integrity evaluation on major nuclear components containing defect. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
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