| People | Locations | Statistics |
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| Naji, M. |
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| Motta, Antonella |
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| Aletan, Dirar |
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| Mohamed, Tarek |
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| Ertürk, Emre |
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| Taccardi, Nicola |
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| Kononenko, Denys |
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| Petrov, R. H. | Madrid |
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| Alshaaer, Mazen | Brussels |
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| Bih, L. |
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| Casati, R. |
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| Muller, Hermance |
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| Kočí, Jan | Prague |
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| Šuljagić, Marija |
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| Kalteremidou, Kalliopi-Artemi | Brussels |
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| Azam, Siraj |
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| Ospanova, Alyiya |
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| Blanpain, Bart |
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| Ali, M. A. |
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| Popa, V. |
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| Rančić, M. |
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| Ollier, Nadège |
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| Azevedo, Nuno Monteiro |
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| Landes, Michael |
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| Rignanese, Gian-Marco |
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Akisanya, Alfred R.
University of Aberdeen
in Cooperation with on an Cooperation-Score of 37%
Topics
Publications (17/17 displayed)
- 2023An investigation on the effect of widespread internal corrosion defects on the collapse pressure of subsea pipelinescitations
- 2023Burst pressure of thin-walled pipes with arbitrarily orientated isolated surface corrosion defectcitations
- 2020Solution Volume Effect
- 2019Sand Failure
- 2019Effect of ammonium bisulphite and chloride on the pitting and stress corrosion cracking resistance of super duplex stainless steel pipes under combined internal pressure and axial tensioncitations
- 2018Failure analysis of a failed anchor chain linkcitations
- 2017Fracture initiation in bi-material joints subject to combined tension and shear loadingcitations
- 2016Indentation failure of circular composite sandwich platescitations
- 2015Autoclave design for high pressure-high temperature corrosion studiescitations
- 2014Analysis of bolted flanged panel joint for GRP sectional tankscitations
- 2014Burst pressure of super duplex stainless steel pipes subject to combined axial tension, internal pressure and elevated temperaturecitations
- 2013The Mechanical Behavior of a 25Cr Super Duplex Stainless Steel at Elevated Temperaturecitations
- 2012Effect of ageing on phase evolution and mechanical properties of a high tungsten super-duplex stainless steelcitations
- 2005Fracture initiation at the interface corner of bimaterial solids
- 2000Bag design in isostatic pressingcitations
- 2000Finite element modelling of cold isostatic pressing
- 2000Edge effects in the failure of elastic/viscoelastic joints subjected to surface tractions
Places of action
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document
Fracture initiation at the interface corner of bimaterial solids
Abstract
<p>It is well known that the elastic stress field in the vicinity of the interface corner of a bi-material joint is of the form Hr<sup>1-λ</sup>, where H is the stress intensity factor, r is the radial distance from the corner, and λ-1 is the order of the stress singularity. Both λ and H depend on the details of the geometry near the corner and on the material combination. In addition, the magnitude of H depends on the applied load. Although the use of a critical value of the intensity factor H = H<sub>c</sub> as a fracture initiation criterion at the interface corner has been suggested in the literature, the application of this criterion to the design of bi-material joints has been very limited. This is partly due to the unusual units of H, which is the form (stress)(length)<sup>1-λ</sup>, and also to the fact that the validity of the H-based criterion for predicting the onset of fracture in bi-material non-linear solids is not yet well understood. In this paper, the validity and limitations of the H-based criterion for predicting the onset of fracture in bi-material joints with at least one elastic-plastic solid is examined. The evolution of the plastic deformation at the interface corner is determined, and the solution is compared with the zone of dominance of the elastic H-field. For the critical value of the interface corner stress intensity factor, Hc, to be a valid fracture parameter, the plastic zone at fracture must be encapsulated in the elastic H-field. This condition is used to obtain a relationship between the characteristic length scale of a joint geometry and the ratio of Hc to the yield stress of the elastic/plastic solid, for which the experimentally determined value of Hc can be used as a valid initiation fracture toughness.</p>