期刊
ENGINEERING FRACTURE MECHANICS
卷 216, 期 -, 页码 -出版社
PERGAMON-ELSEVIER SCIENCE LTD
DOI: 10.1016/j.engfracmech.2019.106514
关键词
Damage tolerance; Fracture mechanics; Reliability; Kriging; Support vector machine; Subset simulation
类别
资金
- CNES (French National Center for Space Studies)
- ANRT (French National Association for Research and Technology) by the CIFRE convention [2015/0209]
- ORFI project - Walloon Region [Convention 7567]
Damage tolerance analysis associates a Fracture Mechanical model with the Failure Assessment Diagram to define the state of a space engine component. The reliability analysis treats the variability of numerical models assessing the probability of failure within Linear Elastic Fracture Mechanics (LEFM) hypotheses. However, these models, while providing quantitative information in the safe domain, give only qualitative information for failed components. This work proposes an original methodology to combine Kriging regression and the Support Vector Machine classification along with transition criteria between both approaches. To accurately describe the limit state, we define a specific enrichment strategy. The efficiency of the proposed methodology is illustrated on reference test cases.
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