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All Outputs (16)

The Intra-Ply Shear Behaviour of Non-Isothermal Thermoplastic Composite Laminates (2023)
Journal Article
Street, G. E., & Johnson, M. S. (2023). The Intra-Ply Shear Behaviour of Non-Isothermal Thermoplastic Composite Laminates. Journal of Composites Science, 7(10), Article 432. https://doi.org/10.3390/jcs7100432

During the thermoforming of fibre-reinforced thermoplastic (FRTP) organosheets, the desire to minimise tool temperatures leads to non-isothermal temperature profiles through the laminate thickness. The aim of this study was to understand the influenc... Read More about The Intra-Ply Shear Behaviour of Non-Isothermal Thermoplastic Composite Laminates.

Hybrid vacuum-robotic forming of reinforced composite laminates (2022)
Journal Article
Elkington, M. P., Mistry, P. J., Johnson, M. S., & Ou, H. (2023). Hybrid vacuum-robotic forming of reinforced composite laminates. Journal of Reinforced Plastics and Composites, 42(11-12), 611-623. https://doi.org/10.1177/07316844221135211

A methodology is presented to implement robotic actuators into diaphragm forming of composite laminates. This Hybrid Vacuum-Robotic (HyVR) process is specifically targeted to prevent ‘bridging’ type defects. Examples are presented of successfully for... Read More about Hybrid vacuum-robotic forming of reinforced composite laminates.

Laminated beams/shafts of annular cross-section subject to combined loading (2022)
Journal Article
Li, S., Johnson, M. S., Sitnikova, E., Evans, R., & Mistry, P. J. (2023). Laminated beams/shafts of annular cross-section subject to combined loading. Thin-Walled Structures, 182(Part A), Article 110153. https://doi.org/10.1016/j.tws.2022.110153

A novel stress analysis method is developed for the efficient design of radially laminated annular beams/shafts subject to arbitrary load combinations. The analysis is conducted using classic laminate theory (CLT) in conjunction with a mechanics of m... Read More about Laminated beams/shafts of annular cross-section subject to combined loading.

A vision for a lightweight railway wheelset of the future (2022)
Journal Article
Bruni, S., Mistry, P. J., Johnson, M. S., Bernasconi, A., Carboni, M., Formaggioni, D., …Marazzi, I. (2022). A vision for a lightweight railway wheelset of the future. Proceedings of the Institution of Mechanical Engineers, Part F: Journal of Rail and Rapid Transit, 236(10), 1179-1197. https://doi.org/10.1177/09544097221080619

Rail vehicle lightweighting using fibre reinforced polymer composite materials is essential for the future of rail. This is recognised as a means of reducing carbon dioxide production through lower energy consumption, as well as reducing the impact o... Read More about A vision for a lightweight railway wheelset of the future.

Structural analysis for the design of a lightweight composite railway axle (2022)
Journal Article
Johnson, M. S., Evans, R., Mistry, P. J., Li, S., Bruni, S., Bernasconi, A., & Cervello, S. (2022). Structural analysis for the design of a lightweight composite railway axle. Composite Structures, 290, Article 115544. https://doi.org/10.1016/j.compstruct.2022.115544

The unsprung masses associated with the axles of a railway vehicle result in costly impact damage to the rail infrastructure. A hybrid metallic-composite (HMC) railway axle is evaluated using finite element analysis. The axle mass is 74 kg, 63% light... Read More about Structural analysis for the design of a lightweight composite railway axle.

Optimization of a Filament Wound Hybrid Metal Composite Railway Axle Design Concept (2022)
Journal Article
Carra, G., Formaggioni, D., Johnson, M. S., Mistry, P. J., Bernasconi, A., & Bruni, S. (2022). Optimization of a Filament Wound Hybrid Metal Composite Railway Axle Design Concept. Applied Science and Engineering Progress, 15(2), https://doi.org/10.14416/j.asep.2022.03.006

This paper presents a numerical design method to develop a mass-minimized winding sequence for carbon fiber reinforced tubes to be manufactured by filament winding. This method combines the use of Altair Optistruct Finite Element Solver and CADWIND V... Read More about Optimization of a Filament Wound Hybrid Metal Composite Railway Axle Design Concept.

Controlling mass loss from RTM6 epoxy resin under simulated vacuum infusion conditions (2022)
Journal Article
Parsons, A. J., Gonciaruk, A., Zeng, X., Thomann, F. S., Schubel, P., Lorrillard, J., & Johnson, M. S. (2022). Controlling mass loss from RTM6 epoxy resin under simulated vacuum infusion conditions. Polymer Testing, 107, Article 107473. https://doi.org/10.1016/j.polymertesting.2022.107473

A certified aerospace resin (RTM 6) normally utilised for resin transfer moulding is considered for vacuum infusion. The resin was subjected to simulated vacuum infusion conditions by using a specialised thermogravimetric analysis that enables contro... Read More about Controlling mass loss from RTM6 epoxy resin under simulated vacuum infusion conditions.

Impact resistance of fibre reinforced composite railway freight tank wagons (2021)
Journal Article
Street, G., Mistry, P., & Johnson, M. (2021). Impact resistance of fibre reinforced composite railway freight tank wagons. Journal of Composites Science, 5(6), Article 152. https://doi.org/10.3390/jcs5060152

The use of fibre reinforced composite materials is one method by which the lightweighting of rail vehicles can be achieved. However, the issue of impact damage, amongst other challenges, limits their safety certification. This issue is accentuated by... Read More about Impact resistance of fibre reinforced composite railway freight tank wagons.

Design of a Lightweight Multifunctional Composite Railway Axle Utilising Coaxial Skins (2021)
Journal Article
Mistry, P. J., Johnson, M. S., McRobie, C. A., & Jones, I. A. (2021). Design of a Lightweight Multifunctional Composite Railway Axle Utilising Coaxial Skins. Journal of Composites Science, 5(3), Article 77. https://doi.org/10.3390/jcs5030077

The rising economic and environmental pressures associated with the generation and consumption of energy necessitates the need for lightweighting of railway vehicles. The railway axle is a prime candidate for lightweighting of the unsprung mass. The... Read More about Design of a Lightweight Multifunctional Composite Railway Axle Utilising Coaxial Skins.

Selection and ranking of rail vehicle components for optimal lightweighting using composite materials (2020)
Journal Article
Mistry, P., Johnson, M., & Galappaththi, U. (2021). Selection and ranking of rail vehicle components for optimal lightweighting using composite materials. Proceedings of the Institution of Mechanical Engineers, Part F: Journal of Rail and Rapid Transit, 235(3), 390-402 . https://doi.org/10.1177/0954409720925685

Current performance requirements for the global rail industry demand that trains are more reliable, efficient and can accommodate an increased capacity for more passengers. Lightweight construction of rail vehicles is thus required to meet these requ... Read More about Selection and ranking of rail vehicle components for optimal lightweighting using composite materials.

Lightweighting of railway axles for reduction of unsprung mass and track access charges (2019)
Journal Article
Mistry, P., & Johnson, M. (2020). Lightweighting of railway axles for reduction of unsprung mass and track access charges. Proceedings of the Institution of Mechanical Engineers, Part F: Journal of Rail and Rapid Transit, 234(9), 958-968 . https://doi.org/10.1177/0954409719877774

The potential for lightweighting of railway axles was investigated to primarily reduce the unsprung mass of rail vehicles. The reduction of unsprung mass equates to an overall lighter train, which will help to reduce track damage, energy consumption... Read More about Lightweighting of railway axles for reduction of unsprung mass and track access charges.

Finite element analysis (FEA) modelling of fiber-reinforced polymer (FRP) repair in offshore risers (2015)
Book Chapter
Johnson, M., Chan, P., Tshai, K., & Li, S. (2015). Finite element analysis (FEA) modelling of fiber-reinforced polymer (FRP) repair in offshore risers. Rehabilitation of pipelines using fibre reinforced polymer (FRP) composites (177-210). Woodhead Publishing. https://doi.org/10.1016/B978-0-85709-684-5.00009-6

The use of relatively inexpensive, high strength to weight ratio fiber reinforced polymer composite (FRPC) as a load bearing pipe repair sleeve is an emerging technology that is becoming common for offshore applications. This chapter will first outli... Read More about Finite element analysis (FEA) modelling of fiber-reinforced polymer (FRP) repair in offshore risers.

The influence of coupling agent, fibre sizing and matrix degradation on the interfacial shear strength between carbon fibre and polypropylene (2014)
Presentation / Conference
Burn, D., Harper, L., Johnson, M., Warrior, N., Yang, L., & Thomason, J. (2014, June). The influence of coupling agent, fibre sizing and matrix degradation on the interfacial shear strength between carbon fibre and polypropylene. Paper presented at 16th European Conference on Composite Materials

The interface strength between carbon fibre (CF) and polypropylene (PP) was characterised using the microbond test. The effect of removing the sizing from the fibres, as well as introducing a maleic anhydride grafted polypropylene (MAPP) coupling age... Read More about The influence of coupling agent, fibre sizing and matrix degradation on the interfacial shear strength between carbon fibre and polypropylene.

A combined theoretical/experimental approach to the dynamic characterization of viscoelastic materials (1992)
Journal Article
Greif, B., & Johnson, M. S. (1992). A combined theoretical/experimental approach to the dynamic characterization of viscoelastic materials. Journal of Engineering Materials and Technology, 114(1), 77-80. https://doi.org/10.1115/1.2904144

This research combines theoretical and experimental approaches to the dynamic mechanical characterization of viscoelastic materials. A detailed derivation is presented for the dynamic response of a typical viscoelastic rod sample. Particular attentio... Read More about A combined theoretical/experimental approach to the dynamic characterization of viscoelastic materials.