Matches in SemOpenAlex for { <https://semopenalex.org/work/W33144482> ?p ?o ?g. }
Showing items 1 to 67 of
67
with 100 items per page.
- W33144482 abstract "Current practice in fatigue life prediction is based on assumed initial structural flaws regardless of whether these assumed flaws actually occur in service. Furthermore, the model parameters are often estimated empirically based on previous coupon test results. Small deviations of the initial conditions and model parameters may generate large errors in the expected dynamical behavior of fatigue damage growth. Consequently, a large degree of conservatism is incorporated into structural designs due to these expected uncertainties. The current research in the area of Structural Health Monitoring (SHM) and probabilistic fatigue modeling can help in improved fatigue damage modeling and remaining useful life estimation (RULE) techniques. This thesis discusses an integrated approach of SHM and adaptive prognosis model that not only estimates the current health, but can also forecast the future health and calculate RULE of an aerospace structural component with high level of confidence. The approach does not assume any fixed initial condition and model parameters. This dissertation include the following novel contributions. 1) A Bayesian based off-line Gaussian Process (GP) model is developed, which is the core of the present condition based prognosis approach. 2) Different passive and active SHM approaches are used for on-line damage state estimation. Applications of passive sensing are shown to estimate the time-series fatigue damage states both under constant and random fatigue loading. It is found that there is a good correlation between estimated damage states and optically measured damage states. In addition, applications for both narrow and broadband active sensing approaches are presented to estimate smaller incipient damage. It is demonstrated that the active sensing techniques not only can identify smaller incipient damage but also can quantify fatigue damage during all the three stages (stages I, II, and III) of fatigue life. 3) An integrated on-line SHM and off-line GP predictive model is developed for real-time condition based damage state estimation of complex Aluminum structures under fatigue loading. It is found that the proposed technique can forecast the future damage states well before the final failure." @default.
- W33144482 created "2016-06-24" @default.
- W33144482 creator A5056058522 @default.
- W33144482 creator A5082241757 @default.
- W33144482 date "2010-01-01" @default.
- W33144482 modified "2023-09-27" @default.
- W33144482 title "Structural health monitoring and condition based fatigue damage prognosis of complex metallic structures" @default.
- W33144482 hasPublicationYear "2010" @default.
- W33144482 type Work @default.
- W33144482 sameAs 33144482 @default.
- W33144482 citedByCount "2" @default.
- W33144482 countsByYear W331444822012 @default.
- W33144482 countsByYear W331444822014 @default.
- W33144482 crossrefType "journal-article" @default.
- W33144482 hasAuthorship W33144482A5056058522 @default.
- W33144482 hasAuthorship W33144482A5082241757 @default.
- W33144482 hasConcept C107673813 @default.
- W33144482 hasConcept C119599485 @default.
- W33144482 hasConcept C127413603 @default.
- W33144482 hasConcept C154945302 @default.
- W33144482 hasConcept C200601418 @default.
- W33144482 hasConcept C2775846686 @default.
- W33144482 hasConcept C2776247918 @default.
- W33144482 hasConcept C2985278600 @default.
- W33144482 hasConcept C41008148 @default.
- W33144482 hasConcept C49937458 @default.
- W33144482 hasConcept C57341113 @default.
- W33144482 hasConcept C66938386 @default.
- W33144482 hasConceptScore W33144482C107673813 @default.
- W33144482 hasConceptScore W33144482C119599485 @default.
- W33144482 hasConceptScore W33144482C127413603 @default.
- W33144482 hasConceptScore W33144482C154945302 @default.
- W33144482 hasConceptScore W33144482C200601418 @default.
- W33144482 hasConceptScore W33144482C2775846686 @default.
- W33144482 hasConceptScore W33144482C2776247918 @default.
- W33144482 hasConceptScore W33144482C2985278600 @default.
- W33144482 hasConceptScore W33144482C41008148 @default.
- W33144482 hasConceptScore W33144482C49937458 @default.
- W33144482 hasConceptScore W33144482C57341113 @default.
- W33144482 hasConceptScore W33144482C66938386 @default.
- W33144482 hasLocation W331444821 @default.
- W33144482 hasOpenAccess W33144482 @default.
- W33144482 hasPrimaryLocation W331444821 @default.
- W33144482 hasRelatedWork W1982030730 @default.
- W33144482 hasRelatedWork W2016889440 @default.
- W33144482 hasRelatedWork W2017820947 @default.
- W33144482 hasRelatedWork W2035693608 @default.
- W33144482 hasRelatedWork W2036692847 @default.
- W33144482 hasRelatedWork W2045659708 @default.
- W33144482 hasRelatedWork W2086409750 @default.
- W33144482 hasRelatedWork W2102889698 @default.
- W33144482 hasRelatedWork W2109685748 @default.
- W33144482 hasRelatedWork W2368681834 @default.
- W33144482 hasRelatedWork W2539255173 @default.
- W33144482 hasRelatedWork W2559905823 @default.
- W33144482 hasRelatedWork W2906334757 @default.
- W33144482 hasRelatedWork W2953894056 @default.
- W33144482 hasRelatedWork W3088450379 @default.
- W33144482 hasRelatedWork W3093084577 @default.
- W33144482 hasRelatedWork W3164125859 @default.
- W33144482 hasRelatedWork W3177290007 @default.
- W33144482 hasRelatedWork W3212921200 @default.
- W33144482 hasRelatedWork W2739882228 @default.
- W33144482 isParatext "false" @default.
- W33144482 isRetracted "false" @default.
- W33144482 magId "33144482" @default.
- W33144482 workType "article" @default.