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Investigation of sand transport in an undulated pipe using computational fluid dynamics. (2017)
Journal Article
TEBOWEI, R., HOSSAIN, M., ISLAM, S.Z., DROUBI, M.G. and OLUYEMI, G. 2018. Investigation of sand transport in an undulated pipe using computational fluid dynamics. Journal of petroleum science and engineering [online], 162, pages 747-762. Available from: https://doi.org/10.1016/j.petrol.2017.11.003

A CFD model has been implemented to investigate the effects the pipe undulation on sand transport. Of particular interest of the present study is the sand deposition in small angled V-inclined bend relevant to oil and gas subsea flowlines where sand... Read More about Investigation of sand transport in an undulated pipe using computational fluid dynamics..

Flow noise identification using acoustic emission (AE) energy decomposition for sand monitoring in flow pipeline. (2017)
Journal Article
DROUBI, M.G., REUBEN, R.L. and STEEL, J.I. 2018. Flow noise identification using acoustic emission (AE) energy decomposition for sand monitoring in flow pipeline. Applied acoustics [online], 131, pages 5-15. Available from: https://doi.org/10.1016/j.apacoust.2017.10.016

In pipelines used for petroleum production and transportation, sand particles may be present in the multi-phase flow of oil and gas and water. The Acoustic Emission (AE) measurement technique is used in the field of sand monitoring and detection in t... Read More about Flow noise identification using acoustic emission (AE) energy decomposition for sand monitoring in flow pipeline..

Mixed-mode fracture characteristics of metal-to-metal adhesively bonded joints: experimental and simulation methods. (2017)
Journal Article
DROUBI, M.G., MCAFEE, J., HORNE, R.C., WALKER, S., KLAASSEN, C., CRAWFORD, A., PRATHURU, A.K. and FAISAL, N.H. 2017. Mixed-mode fracture characteristics of metal-to-metal adhesively bonded joints: experimental and simulation methods. Procedia structural integrity [online], 5: proceedings of the 2nd International conference on structural integrity (ICSI 2017), 4-7 September 2017, Funchal, Portugal, pages 40-47. Available from: https://doi.org/10.1016/j.prostr.2017.07.059

Fracture behavior of adhesively bonded joints subjected to mixed-mode (i.e. mode I+II) loading conditions is of importance in many industrial applications. This research therefore aims to characterise the failure behaviour of metal-to-metal (i.e. bot... Read More about Mixed-mode fracture characteristics of metal-to-metal adhesively bonded joints: experimental and simulation methods..

Application of acoustic emission to predict corrosion. (2017)
Conference Proceeding
DROUBI, M.G. and FAISAL, N.H. 2017. Application of acoustic emission to predict corrosion. In Proceedings of the 14th International conference of the Slovenian Society for Non-Destructive Testing: application of contemporary non-destructive testing in engineering (NDT-Slovenia 2017), 4-6 September 2017, Bernardin, Slovenia. Mayen: NDT.net [online], pages 271-278. Available from: https://www.ndt.net/article/ndt-slovenia2017/papers/271.pdf

Non-destructive testing (NDT) techniques used for petroleum pipelines and offshore wind-turbines can only detect corrosion after it has occurred. Therefore, intrusive inspections are required regularly, potentially causing disruption to operation and... Read More about Application of acoustic emission to predict corrosion..

Efficiency improvement of vertical axis wind turbines with an upstream deflector. (2017)
Journal Article
STOUT, C., ISLAM, S., WHITE, A., ARNOTT, S., KOLLOVOZI, E., SHAW, M., DROUBI, G., SINHA, Y. and BIRD, B. 2017. Efficiency improvement of vertical axis wind turbines with an upstream deflector. Energy procedia [online], 118: proceedings of the 2nd International conference on advances on clean energy research (ICACER 2017), 7-9 April 2017, Berlin, Germany, pages 141-148. Available from: https://doi.org/10.1016/j.egypro.2017.07.032

The suitability of using an upstream deflector to improve the efficiency of a vertical axis wind turbine is presented in this study. A two-dimensional vertical axis wind turbine (VAWT) was modelled and simulated using ANSYS Fluent 14.0 computational... Read More about Efficiency improvement of vertical axis wind turbines with an upstream deflector..

Acoustic emission method for defect detection and identification in carbon steel welded joints. (2017)
Journal Article
DROUBI, M.G., FAISAL, N.H., ORR, F., STEEL, J.A. and EL-SHAIB, M. 2017. Acoustic emission method for defect detection and identification in carbon steel welded joints. Journal of constructional steel research [online], 134, pages 28-37. Available from: https://doi.org/10.1016/j.jcsr.2017.03.012

Detecting welding defects in industrial equipment (welded joints and built-up structures) is a key aspect in evaluating the probability of failure in different situations. Acoustic emission (AE) is an effective non-destructive detecting technique, an... Read More about Acoustic emission method for defect detection and identification in carbon steel welded joints..

Cyclic nanoindentation and nano-impact fatigue mechanisms of functionally graded TiN/TiNi film. (2017)
Journal Article
FAISAL, N.H., PRATHURU, A.K., GOEL, S., AHMED, R., DROUBI, M.G., BEAKE, B.D. and FU, Y.Q. 2017. Cyclic nanoindentation and nano-impact fatigue mechanisms of functionally graded TiN/TiNi film. Shape memory and superelasticity [online], 3(2), pages 149-167. Available from: https://doi.org/10.1007/s40830-017-0099-y

The mechanisms of nanoscale fatigue of functionally graded TiN/TiNi films have been studied using multiple-loading cycle nanoindentation and nano-impact tests. The functionally graded films were sputter-deposited onto silicon substrates, in which the... Read More about Cyclic nanoindentation and nano-impact fatigue mechanisms of functionally graded TiN/TiNi film..

Acoustic emission method to study fracture (Mode-I, II) and residual strength characteristics in composite-to-metal and metal-to-metal adhesively bonded joints. (2017)
Journal Article
DROUBI, M.G., STUART, A., MOWAT, J., NOBLE, C., PRATHURU, A.K. and FAISAL, N.H. 2017. Acoustic emission method to study fracture (Mode-I, II) and residual strength characteristics in composite-to-metal and metal-to-metal adhesively bonded joints. Journal of adhesion [online], 94(5), pages 347-386. Available from: https://doi.org/10.1080/00218464.2017.1278696

Failure behaviour of two types of adhesively bonded joints (composite-to-metal, metal-to-metal) has been studied under failure modes (Mode I: double cantilever beam (DCB) and Mode II: three-point end notch flexures (3-ENF)) using acoustic emission (A... Read More about Acoustic emission method to study fracture (Mode-I, II) and residual strength characteristics in composite-to-metal and metal-to-metal adhesively bonded joints..