An improved Vickers indentation fracture toughness model to assess the quality of thermally sprayed coatings.

Faisal, N.H.; Ahmed, R.; Prathuru, A.K.; Spence, S.; Hossain, M.; Steel, J.A.

doi:10.1016/j.engfracmech.2014.07.015

Machine learning model of acoustic signatures: towards digitalised thermal spray manufacturing. (2023)
Journal Article
VISWANATHAN, V., MCCLOSKEY, A., MATHUR, R., NGUYEN, D.T., FAISAL, N.H., PRATHURU, A., LLAVORI, I., MURPHY, A., TIWARI, A., MATTHEWS, A., AGRAWAL, A. and GOEL, S. 2024. Machine learning model of acoustic signatures: towards digitalised thermal spray manufacturing. Mechanical systems and signal processing [online], 208, article number 111030. Available from: https://doi.org/10.1016/j.ymssp.2023.111030

Thermal spraying, an important industrial surface manufacturing process in sectors such as aerospace, energy and biomedical, remains a skill intensive process often involving multiple trial runs impacting the yield. The core research challenge in dig... Read More about Machine learning model of acoustic signatures: towards digitalised thermal spray manufacturing..

Acoustic emission sensor-assisted process monitoring of air plasma-sprayed titanium deposition. (2023)
Journal Article
VISWANATHAN, V., PRATHURU, A., FAISAL, N.H. and GOEL, S. 2023. Acoustic emission sensor-assisted process monitoring of air plasma-sprayed titanium deposition. Journal of thermal spray technology [online], 32(8), pages 2763-2777. Available from: https://doi.org/10.1007/s11666-023-01663-6

Acoustic emission is a sensing technique that offers the potential benefit for its use as an in situ monitoring tool for a wide range of manufacturing processes. This work attempts to highlight the robustness of using acoustic emission (AE) data for... Read More about Acoustic emission sensor-assisted process monitoring of air plasma-sprayed titanium deposition..

Numerical prediction of the effect of thermal plume of a standing human on the airborne aerosol flow in a room: assessment of the social distancing rule. (2022)
Journal Article
HOSSAIN, M., CHINENYE-KANU, N., FAISAL, N.H., PRATHURU, A., ASIM, T. and BANIK, S. 2023. Numerical prediction of the effect of thermal plume of a standing human on the airborne aerosol flow in a room: assessment of the social distancing rule. Aerosol science and engineering [online], 7(1), pages 96-106. Available from: https://doi.org/https://doi.org/10.1007/s41810-022-00165-2

The purpose of the study is to investigate the dispersion of droplet nuclei/aerosol which are produced during coughing and continuous talking to quantify the risk of infection due to airborne disease transmission. A three-dimensional modelling of aer... Read More about Numerical prediction of the effect of thermal plume of a standing human on the airborne aerosol flow in a room: assessment of the social distancing rule..

Application of pencil lead break (PLB) point source in the detection of interfacial defects in adhesive bonds. (2022)
Journal Article
PRATHURU, A., FAISAL, N., STEEL, J. and JIHAN, S. 2022. Application of pencil lead break (PLB) point source in the detection of interfacial defects in adhesive bonds. Journal of nondestructive evaluation [online], 41(4), article 65. Available from: https://doi.org/10.1007/s10921-022-00898-7

The presence of kissing bonds (zero-thickness disbond) along the interface of an adhesive bond is highly detrimental to its strength and longevity. The detection of these kind of defects has previously been attempted using several techniques such as... Read More about Application of pencil lead break (PLB) point source in the detection of interfacial defects in adhesive bonds..

Measuring residual strain and stress in thermal spray coatings using neutron diffractometers. (2021)
Journal Article
FAISAL, N.H., AHMED, R., PRATHURU, A.K., PARADOWSKA, A. and LEE, T.L. 2022. Measuring residual strain and stress in thermal spray coatings using neutron diffractometers. Experimental mechanics [online], 62(3), pages 369-392. Available from: https://doi.org/10.1007/s11340-021-00803-9

Background: During thermal spray coating, residual strain is formed within the coating and substrates due to thermo-mechanical processes and microstructural phase changes. Objective: This paper provides a comprehensive guide to researchers planning t... Read More about Measuring residual strain and stress in thermal spray coatings using neutron diffractometers..

Investigating the influence of the core material on the mechanical performance of a nitinol wire wrapped helical auxetic yarn. (2021)
Journal Article
FAISAL, N.H., FOWLIE, A., CONNELL, J., MACKENZIE, S., NOBLE, R. and PRATHURU, A.K. 2022. Investigating the influence of the core material on the mechanical performance of a nitinol wire wrapped helical auxetic yarn. Journal of strain analysis for engineering design [online], 57(5), pages 377-391. Available from: https://doi.org/10.1177/03093247211027085

Helical Auxetic Yarns (HAYs) can be used in a variety of applications, from healthcare to blast and impact resistance. This work focuses on the effect of the use of different core materials (e.g. rubber, polyurethane, polytetrafluoroethylene/teflon,... Read More about Investigating the influence of the core material on the mechanical performance of a nitinol wire wrapped helical auxetic yarn..

Neutron diffraction residual strain measurements of molybdenum carbide-based solid oxide fuel cell anode layers with metal oxides on Hastelloy X. (2017)
Journal Article
FAISAL, N.H., AHMED, R., PRATHURU, A.K., KATIKANENI, S.P., GOOSEN, M.F.A. and ZHANG, S-Y. 2018. Neutron diffraction residual strain measurements of molybdenum carbide-based solid oxide fuel cell anode layers with metal oxides on Hastelloy X. Experimental mechanics [online], 58(4), pages 585-603. Available from: https://doi.org/10.1007/s11340-017-0298-7

Thermal spray deposition processes impart residual stress in layered Solid Oxide Fuel Cells (SOFC) materials and hence influence the durability and efficiency of the cell. The current study which is the first of its kind, reports results on using a n... Read More about Neutron diffraction residual strain measurements of molybdenum carbide-based solid oxide fuel cell anode layers with metal oxides on Hastelloy X..

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..

Stress analysis at the interface of metal-to-metal adhesively bonded joints subjected to 4-point bending: finite element method. (2016)
Journal Article
PRATHURU, A.K., FAISAL, N.H., JIHAN, S., STEEL, J.A. and NJUGUNA, J. 2017. Stress analysis at the interface of metal-to-metal adhesively bonded joints subjected to 4-point bending: finite element method. Journal of adhesion [online], 93(11), pages 855-878. Available from: https://doi.org/10.1080/00218464.2016.1172309

This paper presents a study of stress states in two-dimensional models of metal-to-metal adhesively bonded joints subjected to 4-point flexural loading using the finite element (FE) method. The FE simulations were carried out on adhesive bonded joint... Read More about Stress analysis at the interface of metal-to-metal adhesively bonded joints subjected to 4-point bending: finite element method..

An improved Vickers indentation fracture toughness model to assess the quality of thermally sprayed coatings. (2014)
Journal Article
FAISAL, N.H., AHMED, R., PRATHURU, A.K., SPENCE, S., HOSSAIN, M. and STEEL, J.A. 2014. An improved Vickers indentation fracture toughness model to assess the quality of thermally sprayed coatings. Engineering fracture mechanics [online], 128, pages 189-204. Available from: https://doi.org/10.1016/j.engfracmech.2014.07.015

This study presents an improved approach to the quality assessment of thermally sprayed coatings. Measurements were carried out on five different coatings. Since it is the overall extent of surface cracking during Vickers indentation that is indicati... Read More about An improved Vickers indentation fracture toughness model to assess the quality of thermally sprayed coatings..

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