FRINK Linked Data Fragments server

Matches in SemOpenAlex for { <https://semopenalex.org/work/W2134927800> ?p ?o ?g. }

• W2134927800 abstract "Finite-element fracture simulation methodology predicts the residual strength of damaged aircraft structures. The methodology uses the critical crack-tip-opening-angle (CTOA) fracture criterion to characterize the fracture behavior of the material. The CTOA fracture criterion assumes that stable crack growth occurs when the crack-tip angle reaches a constant critical value. The use of the CTOA criterion requires an elastic- plastic, finite-element analysis. The critical CTOA value is determined by simulating fracture behavior in laboratory specimens, such as a compact specimen, to obtain the angle that best fits the observed test behavior. The critical CTOA value appears to be independent of loading, crack length, and in-plane dimensions. However, it is a function of material thickness and local crack-front constraint. Modeling the local constraint requires either a three-dimensional analysis or a two-dimensional analysis with an approximation to account for the constraint effects. In recent times as the aircraft industry is leaning towards monolithic structures with the intention of reducing part count and manufacturing cost, there has been a consistent effort at NASA Langley to extend critical CTOA based numerical methodology in the analysis of integrally-stiffened panels.In this regard, a series of fracture tests were conducted on both flat and curved aluminum alloy integrally-stiffened panels. These flat panels were subjected to uniaxial tension and during the test, applied load-crack extension, out-of-plane displacements and local deformations around the crack tip region were measured. Compact and middle-crack tension specimens were tested to determine the critical angle (wc) using three-dimensional code (ZIP3D) and the plane-strain core height (hJ using two-dimensional code (STAGS). These values were then used in the STAGS analysis to predict the fracture behavior of the integrally-stiffened panels. The analyses modeled stable tearing, buckling, and crack branching at the integral stiffener using different values of critical CTOA for different material thicknesses and orientation. Comparisons were made between measured and predicted load-crack extension, out-of-plane displacements and local deformations around the crack tip region. Simultaneously, three-dimensional capabilities to model crack branching and to monitor stable crack growth of multiple cracks in a large thick integrally-stiffened flat panels were implemented in three-dimensional finite element code (ZIP3D) and tested by analyzing the integrally-stiffened panels tested at Alcoa. The residual strength of the panels predicted from STAGS and ZP3D code compared very well with experimental data. In recent times, STAGS software has been updated with new features and now one can have combinations of solid and shell elements in the residual strength analysis of integrally-stiffened panels." @default.
• W2134927800 created "2016-06-24" @default.
• W2134927800 creator A5008219155 @default.
• W2134927800 creator A5022270035 @default.
• W2134927800 creator A5032227897 @default.
• W2134927800 creator A5066240611 @default.
• W2134927800 date "2003-06-01" @default.
• W2134927800 modified "2023-09-24" @default.
• W2134927800 title "Residual Strength Analyses of Monolithic Structures" @default.
• W2134927800 cites W1576970629 @default.
• W2134927800 cites W1578066737 @default.
• W2134927800 cites W172930790 @default.
• W2134927800 cites W1734378044 @default.
• W2134927800 cites W2064517215 @default.
• W2134927800 cites W207781466 @default.
• W2134927800 cites W2119601584 @default.
• W2134927800 cites W2135160102 @default.
• W2134927800 cites W2138723660 @default.
• W2134927800 cites W271106761 @default.
• W2134927800 cites W35371235 @default.
• W2134927800 hasPublicationYear "2003" @default.
• W2134927800 type Work @default.
• W2134927800 sameAs 2134927800 @default.
• W2134927800 citedByCount "0" @default.
• W2134927800 crossrefType "journal-article" @default.
• W2134927800 hasAuthorship W2134927800A5008219155 @default.
• W2134927800 hasAuthorship W2134927800A5022270035 @default.
• W2134927800 hasAuthorship W2134927800A5032227897 @default.
• W2134927800 hasAuthorship W2134927800A5066240611 @default.
• W2134927800 hasConcept C101386981 @default.
• W2134927800 hasConcept C112950240 @default.
• W2134927800 hasConcept C127413603 @default.
• W2134927800 hasConcept C135628077 @default.
• W2134927800 hasConcept C159985019 @default.
• W2134927800 hasConcept C186068551 @default.
• W2134927800 hasConcept C192562407 @default.
• W2134927800 hasConcept C205059728 @default.
• W2134927800 hasConcept C20965850 @default.
• W2134927800 hasConcept C30467622 @default.
• W2134927800 hasConcept C37292000 @default.
• W2134927800 hasConcept C43369102 @default.
• W2134927800 hasConcept C51830879 @default.
• W2134927800 hasConcept C59085676 @default.
• W2134927800 hasConcept C66938386 @default.
• W2134927800 hasConcept C75512024 @default.
• W2134927800 hasConcept C87210426 @default.
• W2134927800 hasConceptScore W2134927800C101386981 @default.
• W2134927800 hasConceptScore W2134927800C112950240 @default.
• W2134927800 hasConceptScore W2134927800C127413603 @default.
• W2134927800 hasConceptScore W2134927800C135628077 @default.
• W2134927800 hasConceptScore W2134927800C159985019 @default.
• W2134927800 hasConceptScore W2134927800C186068551 @default.
• W2134927800 hasConceptScore W2134927800C192562407 @default.
• W2134927800 hasConceptScore W2134927800C205059728 @default.
• W2134927800 hasConceptScore W2134927800C20965850 @default.
• W2134927800 hasConceptScore W2134927800C30467622 @default.
• W2134927800 hasConceptScore W2134927800C37292000 @default.
• W2134927800 hasConceptScore W2134927800C43369102 @default.
• W2134927800 hasConceptScore W2134927800C51830879 @default.
• W2134927800 hasConceptScore W2134927800C59085676 @default.
• W2134927800 hasConceptScore W2134927800C66938386 @default.
• W2134927800 hasConceptScore W2134927800C75512024 @default.
• W2134927800 hasConceptScore W2134927800C87210426 @default.
• W2134927800 hasLocation W21349278001 @default.
• W2134927800 hasOpenAccess W2134927800 @default.
• W2134927800 hasPrimaryLocation W21349278001 @default.
• W2134927800 hasRelatedWork W1006640696 @default.
• W2134927800 hasRelatedWork W137741046 @default.
• W2134927800 hasRelatedWork W1485386938 @default.
• W2134927800 hasRelatedWork W1548845860 @default.
• W2134927800 hasRelatedWork W1979062310 @default.
• W2134927800 hasRelatedWork W199013460 @default.
• W2134927800 hasRelatedWork W1991798250 @default.
• W2134927800 hasRelatedWork W1993497953 @default.
• W2134927800 hasRelatedWork W200855372 @default.
• W2134927800 hasRelatedWork W2023648746 @default.
• W2134927800 hasRelatedWork W2053190929 @default.
• W2134927800 hasRelatedWork W2070093705 @default.
• W2134927800 hasRelatedWork W2072116464 @default.
• W2134927800 hasRelatedWork W211509676 @default.
• W2134927800 hasRelatedWork W2119601584 @default.
• W2134927800 hasRelatedWork W2138139148 @default.
• W2134927800 hasRelatedWork W2165002866 @default.
• W2134927800 hasRelatedWork W790027209 @default.
• W2134927800 hasRelatedWork W844904974 @default.
• W2134927800 hasRelatedWork W970964654 @default.
• W2134927800 isParatext "false" @default.
• W2134927800 isRetracted "false" @default.
• W2134927800 magId "2134927800" @default.
• W2134927800 workType "article" @default.