Matches in SemOpenAlex for { <https://semopenalex.org/work/W2022658641> ?p ?o ?g. }
Showing items 1 to 90 of
90
with 100 items per page.
- W2022658641 endingPage "846" @default.
- W2022658641 startingPage "841" @default.
- W2022658641 abstract "A common treatment to restore normal blood flow in an obstructed artery is the deployment of a stent (i.e. small tube-like structure). The vast majority of stents are crimped on a folded balloon and laser cut from 316L stainless steel tubes. Although, several numerical studies (exploiting the Finite Element Method) are dedicated to the mechanical behaviour of balloon expandable stents, there seems to be no consensus regarding the mechanical properties to describe the inelastic material behaviour of SS316L. Moreover, as the typical dimensions of stent struts (e.g. 100 μm for coronary stents) are of a similar order of magnitude as the average grain size in stainless steel (i.e. 25 μm), continuum approaches relying on macroscopic material properties may be questionable. In addition, an experimental study on stainless steel stent strut specimens showed a size-dependency of the failure strain. In this study the impact of the magnitude of the yield stress on the stent expansion behavior is examined. An increase in the yield stress (from 205 N/mm² to 375 N/mm²) results in an increase of the pressure (from about 0.3 N/mm² to approximately 0.4 N/mm²) which the clinician needs to exert for the balloon to unfold and to reach its cylindrical expanded shape. Furthermore, the effect of the size dependency behavior of the material is studied by monitoring the nominal strain during stent expansion. The maximum value of the nominal strain in the expanded stent (e.g. εn = 23 %) does not exceed the critical value of the failure strain, (i.e. εn = 33 %), moreover the critical values are nowhere exceeded in the whole stent during the expansion. Our numerical results - accounting for the presence of the balloon in its actual folded shape - correspond very well with pressure/diameter data supplied by the manufacturer. Consequently, this study shows that the free expansion of new generation balloon-expandable stents can be studied accurately with computational analysis based on the Finite Element Method (FEM) and relying on macroscopic material properties. In this context, there is no need to implement a size-based constitutive material model, but before accepting the results of the study, one should check in any case the maximum strain against the limit as shown above." @default.
- W2022658641 created "2016-06-24" @default.
- W2022658641 creator A5016863812 @default.
- W2022658641 creator A5019421103 @default.
- W2022658641 creator A5037098445 @default.
- W2022658641 creator A5054415571 @default.
- W2022658641 creator A5054524781 @default.
- W2022658641 creator A5084906273 @default.
- W2022658641 date "2007-06-01" @default.
- W2022658641 modified "2023-10-14" @default.
- W2022658641 title "Plasticity as a Lifesaver in the Design of Cardiovascular Stents" @default.
- W2022658641 cites W1969745065 @default.
- W2022658641 cites W1988556310 @default.
- W2022658641 cites W2001279877 @default.
- W2022658641 cites W2076714894 @default.
- W2022658641 cites W2112506306 @default.
- W2022658641 cites W2134052075 @default.
- W2022658641 cites W2324841714 @default.
- W2022658641 doi "https://doi.org/10.4028/www.scientific.net/kem.340-341.841" @default.
- W2022658641 hasPublicationYear "2007" @default.
- W2022658641 type Work @default.
- W2022658641 sameAs 2022658641 @default.
- W2022658641 citedByCount "7" @default.
- W2022658641 countsByYear W20226586412016 @default.
- W2022658641 countsByYear W20226586412019 @default.
- W2022658641 crossrefType "journal-article" @default.
- W2022658641 hasAuthorship W2022658641A5016863812 @default.
- W2022658641 hasAuthorship W2022658641A5019421103 @default.
- W2022658641 hasAuthorship W2022658641A5037098445 @default.
- W2022658641 hasAuthorship W2022658641A5054415571 @default.
- W2022658641 hasAuthorship W2022658641A5054524781 @default.
- W2022658641 hasAuthorship W2022658641A5084906273 @default.
- W2022658641 hasConcept C126838900 @default.
- W2022658641 hasConcept C127413603 @default.
- W2022658641 hasConcept C135628077 @default.
- W2022658641 hasConcept C136229726 @default.
- W2022658641 hasConcept C138885662 @default.
- W2022658641 hasConcept C139059822 @default.
- W2022658641 hasConcept C141071460 @default.
- W2022658641 hasConcept C159985019 @default.
- W2022658641 hasConcept C192191005 @default.
- W2022658641 hasConcept C192562407 @default.
- W2022658641 hasConcept C21036866 @default.
- W2022658641 hasConcept C2778283817 @default.
- W2022658641 hasConcept C2778583881 @default.
- W2022658641 hasConcept C2780911114 @default.
- W2022658641 hasConcept C31555180 @default.
- W2022658641 hasConcept C41895202 @default.
- W2022658641 hasConcept C66938386 @default.
- W2022658641 hasConcept C71924100 @default.
- W2022658641 hasConcept C79186407 @default.
- W2022658641 hasConceptScore W2022658641C126838900 @default.
- W2022658641 hasConceptScore W2022658641C127413603 @default.
- W2022658641 hasConceptScore W2022658641C135628077 @default.
- W2022658641 hasConceptScore W2022658641C136229726 @default.
- W2022658641 hasConceptScore W2022658641C138885662 @default.
- W2022658641 hasConceptScore W2022658641C139059822 @default.
- W2022658641 hasConceptScore W2022658641C141071460 @default.
- W2022658641 hasConceptScore W2022658641C159985019 @default.
- W2022658641 hasConceptScore W2022658641C192191005 @default.
- W2022658641 hasConceptScore W2022658641C192562407 @default.
- W2022658641 hasConceptScore W2022658641C21036866 @default.
- W2022658641 hasConceptScore W2022658641C2778283817 @default.
- W2022658641 hasConceptScore W2022658641C2778583881 @default.
- W2022658641 hasConceptScore W2022658641C2780911114 @default.
- W2022658641 hasConceptScore W2022658641C31555180 @default.
- W2022658641 hasConceptScore W2022658641C41895202 @default.
- W2022658641 hasConceptScore W2022658641C66938386 @default.
- W2022658641 hasConceptScore W2022658641C71924100 @default.
- W2022658641 hasConceptScore W2022658641C79186407 @default.
- W2022658641 hasLocation W20226586411 @default.
- W2022658641 hasOpenAccess W2022658641 @default.
- W2022658641 hasPrimaryLocation W20226586411 @default.
- W2022658641 hasRelatedWork W1822146779 @default.
- W2022658641 hasRelatedWork W2022658641 @default.
- W2022658641 hasRelatedWork W2026248057 @default.
- W2022658641 hasRelatedWork W2063235294 @default.
- W2022658641 hasRelatedWork W2072077199 @default.
- W2022658641 hasRelatedWork W2072675514 @default.
- W2022658641 hasRelatedWork W2361305516 @default.
- W2022658641 hasRelatedWork W2364838656 @default.
- W2022658641 hasRelatedWork W2520741133 @default.
- W2022658641 hasRelatedWork W2981050564 @default.
- W2022658641 hasVolume "340-341" @default.
- W2022658641 isParatext "false" @default.
- W2022658641 isRetracted "false" @default.
- W2022658641 magId "2022658641" @default.
- W2022658641 workType "article" @default.