FRINK Linked Data Fragments server

Matches in SemOpenAlex for { <https://semopenalex.org/work/W2906892811> ?p ?o ?g. }

• W2906892811 abstract "In the field of fatigue testing in laboratory conditions, the common practice is uniaxial testing (i.e. in tension). The real-life loads on structures are usually not limited to one direction but contain multiaxial components. For this kind of testing, the ship and offshore structures department of Delft University of Technology developed a machine that is capable of exciting stresses in a specimen that resembles real life. A preliminary study has been conducted for the feasibility of using the acoustic emission method for monitoring fatigue on this multiaxial testing machine and in specific on a tubular double-side welded T-joint in offshore applications. This method is a tool to help to understand the fatigue progress in the material during testing. Fatigue is a process by which damage is caused under cyclic loading below the yield stress. This phenomenon initiates on a microscale were dislocations accumulate and grow into a crack. The crack can grow until the structural integrity fails in complete rupture. The fatigue lifetime may be predicted; this is done with the help of uniaxial fatigue models. For multiaxial fatigue these models are not accurate and therefore a multi axial fatigue model should be developed. The crux here is to do these experiments to gain knowledge of the multiaxial fatigue to develop an accurate model for multiaxial fatigue. The acoustic emission method is a non-destructive evaluation method that can help to determine the condition of a structural component. The acoustic emission signals have features that contain information on what is going on in the material. Feature extraction can also give insight to the fatigue lifetime. In addition, the acoustic emission signals can be used for localization of the damage. The localization calculation is done by comparing different times of arrivals and with this information the source can be localized. If this localization and tracking of the fatigue crack can be achieved on the multiaxial testing machine the new prediction models that are developed at the university can be more rigorously evaluated. Combining the knowledge of fatigue and acoustic emission method, the following main research question is formulated: “Is it possible to detect a fatigue crack with the acoustic emission method, and how can the crack length and position be estimated in the tubular welded T-joint specimen multiaxial loading?” Before the main question could be tackled, the background noise of the testing machine is measured for possible interference for future test. The second sub-question is: What features of the acoustic emission signal can be acquired and processed robustly for the tubular specimen? The last sub-question is: What are the essential features of the acoustic emission signals released by fatigue cracks under multiaxial loading? This last question could not be answered because there were no multiaxial experiments during the duration of this project. However, the methodology presented here as shown on a uniaxial case is believed to be directly applicable for multiaxial loading cases as well Three experiments were performed of which one uniaxial test was used for detailed acoustic emission analysis. The data was analyzed with localization of the fatigue crack in the specimen. The localization of the crack and tracking its position is shown to be possible when the data is of sufficient quality. The difference in the estimate of the crack size by acoustic emission and the measured crack length turned out to be smaller than 10% when the crack reached its maximum length." @default.
• W2906892811 created "2019-01-11" @default.
• W2906892811 creator A5042599042 @default.
• W2906892811 date "2018-01-01" @default.
• W2906892811 modified "2023-09-27" @default.
• W2906892811 title "Feasibility of Acoustic Emission Methods for Fatigue Monitoring in Tubular Double Side Welded T-joints" @default.
• W2906892811 hasPublicationYear "2018" @default.
• W2906892811 type Work @default.
• W2906892811 sameAs 2906892811 @default.
• W2906892811 citedByCount "0" @default.
• W2906892811 crossrefType "journal-article" @default.
• W2906892811 hasAuthorship W2906892811A5042599042 @default.
• W2906892811 hasConcept C112950240 @default.
• W2906892811 hasConcept C127413603 @default.
• W2906892811 hasConcept C138885662 @default.
• W2906892811 hasConcept C145420912 @default.
• W2906892811 hasConcept C159985019 @default.
• W2906892811 hasConcept C174598085 @default.
• W2906892811 hasConcept C179428855 @default.
• W2906892811 hasConcept C18555067 @default.
• W2906892811 hasConcept C186068551 @default.
• W2906892811 hasConcept C192562407 @default.
• W2906892811 hasConcept C19474535 @default.
• W2906892811 hasConcept C21036866 @default.
• W2906892811 hasConcept C28539199 @default.
• W2906892811 hasConcept C2985278600 @default.
• W2906892811 hasConcept C3020080851 @default.
• W2906892811 hasConcept C33923547 @default.
• W2906892811 hasConcept C41895202 @default.
• W2906892811 hasConcept C57341113 @default.
• W2906892811 hasConcept C58396970 @default.
• W2906892811 hasConcept C59085676 @default.
• W2906892811 hasConcept C66938386 @default.
• W2906892811 hasConceptScore W2906892811C112950240 @default.
• W2906892811 hasConceptScore W2906892811C127413603 @default.
• W2906892811 hasConceptScore W2906892811C138885662 @default.
• W2906892811 hasConceptScore W2906892811C145420912 @default.
• W2906892811 hasConceptScore W2906892811C159985019 @default.
• W2906892811 hasConceptScore W2906892811C174598085 @default.
• W2906892811 hasConceptScore W2906892811C179428855 @default.
• W2906892811 hasConceptScore W2906892811C18555067 @default.
• W2906892811 hasConceptScore W2906892811C186068551 @default.
• W2906892811 hasConceptScore W2906892811C192562407 @default.
• W2906892811 hasConceptScore W2906892811C19474535 @default.
• W2906892811 hasConceptScore W2906892811C21036866 @default.
• W2906892811 hasConceptScore W2906892811C28539199 @default.
• W2906892811 hasConceptScore W2906892811C2985278600 @default.
• W2906892811 hasConceptScore W2906892811C3020080851 @default.
• W2906892811 hasConceptScore W2906892811C33923547 @default.
• W2906892811 hasConceptScore W2906892811C41895202 @default.
• W2906892811 hasConceptScore W2906892811C57341113 @default.
• W2906892811 hasConceptScore W2906892811C58396970 @default.
• W2906892811 hasConceptScore W2906892811C59085676 @default.
• W2906892811 hasConceptScore W2906892811C66938386 @default.
• W2906892811 hasLocation W29068928111 @default.
• W2906892811 hasOpenAccess W2906892811 @default.
• W2906892811 hasPrimaryLocation W29068928111 @default.
• W2906892811 hasRelatedWork W1501458854 @default.
• W2906892811 hasRelatedWork W1504538810 @default.
• W2906892811 hasRelatedWork W1981456988 @default.
• W2906892811 hasRelatedWork W1984256512 @default.
• W2906892811 hasRelatedWork W2023977841 @default.
• W2906892811 hasRelatedWork W2069289568 @default.
• W2906892811 hasRelatedWork W2310678611 @default.
• W2906892811 hasRelatedWork W2321127802 @default.
• W2906892811 hasRelatedWork W2321774409 @default.
• W2906892811 hasRelatedWork W2527810770 @default.
• W2906892811 hasRelatedWork W2734225519 @default.
• W2906892811 hasRelatedWork W2901425599 @default.
• W2906892811 hasRelatedWork W2914687173 @default.
• W2906892811 hasRelatedWork W2955067020 @default.
• W2906892811 hasRelatedWork W3073475279 @default.
• W2906892811 hasRelatedWork W3087149415 @default.
• W2906892811 hasRelatedWork W3161885505 @default.
• W2906892811 hasRelatedWork W3193342178 @default.
• W2906892811 hasRelatedWork W63015926 @default.
• W2906892811 hasRelatedWork W93012482 @default.
• W2906892811 isParatext "false" @default.
• W2906892811 isRetracted "false" @default.
• W2906892811 magId "2906892811" @default.
• W2906892811 workType "article" @default.