| 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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article
Failure analysis of a failed anchor chain link
Abstract
The failure of a metal chain link with stud during an anchoring operation of a ship is examined. Visual observation, optical and scanning electron microscopy analyses of the fracture surfaces in combination with hardness and tensile tests are used to establish the cause of failure.The chemical element composition, tensile strength, yield strength and elongation of the base metal of the chain link are within the recommended design values.However, cross-sectional microstructure examination revealed that the fracture occurred along the flash butt weld and initiated from a pre-existing edge radial crack on the outer surface which had been painted over.The presence of inclusions near the outer surface, decarburized boundaries of the inclusions and decarburized thin strip along the entire weldment had resulted in reduction in the strength of the weldment and subsequent initiation of the surface crack.The main cause of the chain link failure is improper flash welding and heat treatment resulting in localised carbide segregations and embrittlement, leading to initiation of surface crack and consequent overload of the remaining net-section area of the chain. There was no evidence of fatigue crack growth.Better inspection and maintenance would have led to early detection of the surface crack during any the periodic non-destructive testing.