Outputs (36)

How pressure affects costs of power conversion machinery in compressed air energy storage; part II: Heat exchangers (2024)
Journal Article
Baniamerian, Z., Garvey, S., Rouse, J., Cárdenas, B., Pottie, D. L., Barbour, E. R., & Bagdanavicius, A. (2024). How pressure affects costs of power conversion machinery in compressed air energy storage; part II: Heat exchangers. Journal of Energy Storage, 86(Pt A), Article 111138. https://doi.org/10.1016/j.est.2024.111138

In the field of compressed air energy storage, a critical economic aspect that has been overlooked in existing literature relates to the influence of storage pressure on the capital cost of power conversion system. In Part I, a comprehensive study wa... Read More about How pressure affects costs of power conversion machinery in compressed air energy storage; part II: Heat exchangers.

Modelling the influence of plasticity induced softening on the low cycle fatigue and crack propagation behaviour of a nickel-based superalloy (2023)
Journal Article
Engel, B., Lavie, W., Rouse, J., Whittaker, M., Jones, J., Lancaster, R., …Hyde, C. (2024). Modelling the influence of plasticity induced softening on the low cycle fatigue and crack propagation behaviour of a nickel-based superalloy. Computational Materials Science, 231, Article 112604. https://doi.org/10.1016/j.commatsci.2023.112604

Cyclic hysteresis loops generated during high-temperature, isothermal, low-cycle fatigue testing of the nickel-based superalloy RR1000 revealed a gradual decrease in elastic modulus of up to 25 % compared to the initial value in dependence of the acc... Read More about Modelling the influence of plasticity induced softening on the low cycle fatigue and crack propagation behaviour of a nickel-based superalloy.

Comparative Analysis of Isochoric and Isobaric Adiabatic Compressed Air Energy Storage (2023)
Journal Article
Pottie, D., Cardenas, B., Garvey, S., Rouse, J., Hough, E., Bagdanavicius, A., & Barbour, E. (2023). Comparative Analysis of Isochoric and Isobaric Adiabatic Compressed Air Energy Storage. Energies, 16(6), Article 2646. https://doi.org/10.3390/en16062646

Adiabatic Compressed Air Energy Storage (ACAES) is regarded as a promising, grid scale, medium-to-long duration energy storage technology. In ACAES, the air storage may be isochoric (constant volume) or isobaric (constant pressure). Isochoric storage... Read More about Comparative Analysis of Isochoric and Isobaric Adiabatic Compressed Air Energy Storage.

The effect of a nuclear baseload in a zero-carbon electricity system: An analysis for the UK (2023)
Journal Article
Cárdenas, B., Ibanez, R., Rouse, J., Swinfen-Styles, L., & Garvey, S. (2023). The effect of a nuclear baseload in a zero-carbon electricity system: An analysis for the UK. Renewable Energy, 205, 256-272. https://doi.org/10.1016/j.renene.2023.01.028

This paper explores the effect of having a nuclear baseload in a 100% carbon-free electricity system The study analyses numerous scenarios based on different penetrations of conventional nuclear, wind and solar PV power, different levels of overgener... Read More about The effect of a nuclear baseload in a zero-carbon electricity system: An analysis for the UK.

The Estimation of Taylor-Quinney Coefficients Using Small Ring Specimens (2022)
Journal Article
Lavie, W., Rouse, J. P., & Hyde, C. J. (2023). The Estimation of Taylor-Quinney Coefficients Using Small Ring Specimens. Experimental Mechanics, 63, 429-443. https://doi.org/10.1007/s11340-022-00920-z

Background: The use of the Taylor-Quinney coefficient for introducing a thermal dissipation term into material models relies on understanding its dependencies. These are usually determined through extensive experimentation, wherein temperature variat... Read More about The Estimation of Taylor-Quinney Coefficients Using Small Ring Specimens.

An inverse analysis method for determining abradable constitutive properties (2022)
Journal Article
Lye, R., Bennett, C., Rouse, J., & Zumpano, G. (2022). An inverse analysis method for determining abradable constitutive properties. Materials Today Communications, 33, Article 104571. https://doi.org/10.1016/j.mtcomm.2022.104571

Abradable coatings enable small tip clearances within gas turbine engines to be achieved. These coatings allow blades to cut their ideal paths during engine running-in and act as a sacrificial layer during unforeseen blade-casing interactions, minimi... Read More about An inverse analysis method for determining abradable constitutive properties.

A probabilistic data assimilation framework to reconstruct finite element error fields from sparse error estimates: Application to sub-modeling (2022)
Journal Article
Rouse, J. P., Kerfriden, P., & Hamadi, M. (2022). A probabilistic data assimilation framework to reconstruct finite element error fields from sparse error estimates: Application to sub-modeling. International Journal for Numerical Methods in Engineering, 123(23), 5826-5853. https://doi.org/10.1002/nme.7090

The present work proposes a computational approach that recovers full finite element error fields from a small number of estimates of errors in scalar quantities of interest. The approach is weakly intrusive and is motivated by large scale industrial... Read More about A probabilistic data assimilation framework to reconstruct finite element error fields from sparse error estimates: Application to sub-modeling.

Short-, medium-, and long-duration energy storage in a 100% renewable electricity grid: A UK case study (2021)
Journal Article
Cárdenas, B., Swinfen-Styles, L., Rouse, J., & Garvey, S. D. (2021). Short-, medium-, and long-duration energy storage in a 100% renewable electricity grid: A UK case study. Energies, 14(24), Article 8524. https://doi.org/10.3390/en14248524

Energy storage will be required over a wide range of discharge durations in future zero-emission grids, from milliseconds to months. No single technology is well suited for the complete range. Using 9 years of UK data, this paper explores how to comb... Read More about Short-, medium-, and long-duration energy storage in a 100% renewable electricity grid: A UK case study.

Thermomechanical fatigue life due to scatter in constitutive parameters (2021)
Journal Article
Leidermark, D., Rouse, J., Engel, B., Hyde, C., Pattison, S., & Stekovic, S. (2021). Thermomechanical fatigue life due to scatter in constitutive parameters. Computational Materials Science, 198, Article 110690. https://doi.org/10.1016/j.commatsci.2021.110690

For critical component application, such as aerospace turbine rotors, it is imperative to be able to make accurate in-service material behaviour and component life predictions for both design and monitoring of component life. The development of such... Read More about Thermomechanical fatigue life due to scatter in constitutive parameters.

Small specimen techniques for estimation of tensile, fatigue, fracture and crack propagation material model parameters (2021)
Journal Article
Kazakeviciute, J., Rouse, J. P., Focatiis, D., & Hyde, C. (2022). Small specimen techniques for estimation of tensile, fatigue, fracture and crack propagation material model parameters. Journal of Strain Analysis for Engineering Design, 57(4), 227-254. https://doi.org/10.1177/03093247211025208

Small specimen mechanical testing is an exciting and rapidly developing field in which fundamental deformation behaviours can be observed from experiments performed on comparatively small amounts of material. These methods are particularly useful whe... Read More about Small specimen techniques for estimation of tensile, fatigue, fracture and crack propagation material model parameters.

A case study investigation into the risk of fatigue in synchronous flywheel energy stores and ramifications for the design of inertia replacement systems (2021)
Journal Article
Rouse, J., Garvey, S., Cárdenas, B., Hoskin, A., Swinfen-Styles, L., & Xu, W. (2021). A case study investigation into the risk of fatigue in synchronous flywheel energy stores and ramifications for the design of inertia replacement systems. Journal of Energy Storage, 39, Article 102651. https://doi.org/10.1016/j.est.2021.102651

Flywheels are an attractive energy storage solution for many reasons; high turnaround efficiencies, long cycling lives and high “ramp-up” power rates have all been noted in the literature. Novel flywheel based hybrid energy storage systems have also... Read More about A case study investigation into the risk of fatigue in synchronous flywheel energy stores and ramifications for the design of inertia replacement systems.

Energy storage capacity vs. renewable penetration: A study for the UK (2021)
Journal Article
Rouse, J., Xu, W., Garvey, S., Hoskin, A., Swinfen-Styles, L., & Cárdenas, B. (2021). Energy storage capacity vs. renewable penetration: A study for the UK. Renewable Energy, 171, 849-867. https://doi.org/10.1016/j.renene.2021.02.149

This paper explores how the requirement for energy storage capacity will grow as the penetration of renewables increases. The UK’s electric grid is used as a case study. The paper aims to provide insight on what is the most economical solution to dec... Read More about Energy storage capacity vs. renewable penetration: A study for the UK.

Goal oriented error estimation in multi-scale shell element finite element problems (2021)
Journal Article
Bonney, M. S., Evans, R., Rouse, J., Jones, A., Kerfriden, P., & Hamadi, M. (2021). Goal oriented error estimation in multi-scale shell element finite element problems. Advanced Modeling and Simulation in Engineering Sciences, 8(1), Article 3. https://doi.org/10.1186/s40323-021-00189-2

A major challenge with modern aircraft design is the occurrence of structural features of varied length scales. Structural stiffness can be accurately represented using homogenisation, however aspects such as the onset of failure may require informat... Read More about Goal oriented error estimation in multi-scale shell element finite element problems.

On the use of small ring testing for the characterisation of elastic and yield material property variation in additively manufactured materials (2020)
Journal Article
Rouse, J. P., Simonelli, M., & Hyde, C. J. (2020). On the use of small ring testing for the characterisation of elastic and yield material property variation in additively manufactured materials. Additive Manufacturing, 36, https://doi.org/10.1016/j.addma.2020.101589

© 2020 Elsevier B.V. The present work introduces a small volume, high throughput testing method that may be used to quickly, and with high spatial fidelity, investigate local material properties in additively manufactured materials. A case study appl... Read More about On the use of small ring testing for the characterisation of elastic and yield material property variation in additively manufactured materials.

Experimental and numerical investigation of interface damage in composite L-angle sections under four-point bending (2020)
Journal Article
Zou, X., Yan, S., Matveev, M., Rouse, J. P., & Jones, I. A. (2021). Experimental and numerical investigation of interface damage in composite L-angle sections under four-point bending. Journal of Composite Materials, 55(2), 187-200. https://doi.org/10.1177/0021998320943659

© The Author(s) 2020. Curved laminates in aero-structures, such as the L-angle sections where webs and flanges meet, are prone to delamination due to high interlaminar stresses in these regions. Some efforts to investigate delamination in these struc... Read More about Experimental and numerical investigation of interface damage in composite L-angle sections under four-point bending.

DevTMF – Towards code of practice for thermo-mechanical fatigue crack growth (2020)
Journal Article
Stekovic, S., Jones, J. P., Engel, B., Whittaker, M. T., Norman, V., Rouse, J. P., …Moverare, J. (2020). DevTMF – Towards code of practice for thermo-mechanical fatigue crack growth. International Journal of Fatigue, 138, Article 105675. https://doi.org/10.1016/j.ijfatigue.2020.105675

© 2020 Elsevier Ltd The current paper presents work on identification and evaluation of a range of factors influencing accuracy and comparability of data generated by three laboratories carrying out stress-controlled thermo-mechanical fatigue crack g... Read More about DevTMF – Towards code of practice for thermo-mechanical fatigue crack growth.

The prediction of crack propagation in coarse grain RR1000 using a unified modelling approach (2020)
Journal Article
Engel, B., Rouse, J., Hyde, C., Lavie, W., Leidermark, D., Stekovic, S., …Li, H. (2020). The prediction of crack propagation in coarse grain RR1000 using a unified modelling approach. International Journal of Fatigue, 137, 105652. https://doi.org/10.1016/j.ijfatigue.2020.105652

© 2020 Elsevier Ltd The polycrystalline nickel-base superalloy RR1000 is used as turbine rotor material in Rolls-Royce aero engines and has to withstand a wide variety of load and temperature changes during operation. In order to maximize the potenti... Read More about The prediction of crack propagation in coarse grain RR1000 using a unified modelling approach.

Potential difference methods for measuring crack growth: A review (2020)
Journal Article
Si, Y., Rouse, J. P., & Hyde, C. J. (2020). Potential difference methods for measuring crack growth: A review. International Journal of Fatigue, 136, https://doi.org/10.1016/j.ijfatigue.2020.105624

© 2020 Elsevier Ltd Non-destructive testing techniques are widely applied in industry for the evaluation of quantities of interest without inflicting additional damage accumulation. Crack detection and monitoring is a prime example of where non-destr... Read More about Potential difference methods for measuring crack growth: A review.

A viscoelastic – viscoplastic material model for superalloy applications (2020)
Journal Article
Rouse, J. P., Engel, B., Hyde, C. J., Pattison, S. J., Whittaker, M. T., Jones, J. P., …Barnard, N. C. (2020). A viscoelastic – viscoplastic material model for superalloy applications. International Journal of Fatigue, 136, Article 105579. https://doi.org/10.1016/j.ijfatigue.2020.105579

© 2020 Elsevier Ltd An understanding of rate dependency over a wide range of time scales is vitally important in approximating the transient response of critical components operating in extreme environments. Many examples of viscoplastic model formul... Read More about A viscoelastic – viscoplastic material model for superalloy applications.

Bayesian Reconstruction of Goal Orientated Error Fields in Large Aerospace Finite Element Models (2020)
Conference Proceeding
Bonney, M. S., Evans, R., Rouse, J., Jones, A., & Hamadi, M. (2020). Bayesian Reconstruction of Goal Orientated Error Fields in Large Aerospace Finite Element Models. In Proceedings of AerospaceEurope Conference 2020

A major difficulty in the mechanical simulation of large aerospace structures is the multi-scale nature of modern designs due to, at least in part, the increased use of composite materials. "Thin" materials are typically idealised by shell elements i... Read More about Bayesian Reconstruction of Goal Orientated Error Fields in Large Aerospace Finite Element Models.

The effect of phase angle on crack growth mechanisms under thermo-mechanical fatigue loading (2020)
Journal Article
Jones, J., Whittaker, M., Lancaster, R., Hyde, C., Rouse, J., Engel, B., …Li, H. Y. (2020). The effect of phase angle on crack growth mechanisms under thermo-mechanical fatigue loading. International Journal of Fatigue, 135, Article 105539. https://doi.org/10.1016/j.ijfatigue.2020.105539

© 2020 Elsevier Ltd The current paper describes TMF crack growth behaviour in an advanced nickel-based superalloy. Changes in behaviour are examined which occur as a function of the phase angle between applied stress and temperature. The fractography... Read More about The effect of phase angle on crack growth mechanisms under thermo-mechanical fatigue loading.

The identification of failure initiation hotspots in idealised composite material component models using a “bottom-up database” method (2019)
Conference Proceeding
Zou, X., Yan, S., Rouse, J., Matveev, M., Li, S., Jones, I. A., …Fouinneteau, M. (2019). The identification of failure initiation hotspots in idealised composite material component models using a “bottom-up database” method. In Proceedings of 18th European Conference on Composite Materials, Athens 2018

© CCM 2020 - 18th European Conference on Composite Materials. All rights reserved. Idealisations are inevitable for finite element simulations of complex composite structures especially airframes, where laminates are commonly modelled using shell ele... Read More about The identification of failure initiation hotspots in idealised composite material component models using a “bottom-up database” method.

The development of a novel technique for small ring specimen tensile testing (2018)
Journal Article
Kazakeviciute, J., Rouse, J., De Focatiis, D., & Hyde, C. (2019). The development of a novel technique for small ring specimen tensile testing. Theoretical and Applied Fracture Mechanics, 99, 131-139. https://doi.org/10.1016/j.tafmec.2018.11.016

The wide scale use of small specimens in routine testing programs could significantly reduce material resource requirements (factors of 10 are easily achievable). This is a major benefit to situations where there is not enough material to manufacture... Read More about The development of a novel technique for small ring specimen tensile testing.

A neural network approach for determining spatial and geometry dependent Green's functions for thermal stress approximation in power plant header components (2018)
Journal Article
Rouse, J., Hyde, C., & Morris, A. (2018). A neural network approach for determining spatial and geometry dependent Green's functions for thermal stress approximation in power plant header components. International Journal of Pressure Vessels and Piping, 168, 269-288. https://doi.org/10.1016/j.ijpvp.2018.10.020

The trend in power generation to operate plant with a greater frequency of on/partial/off load conditions creates several concerns for the long term structural integrity of many high temperature components. The Green's function method has been used f... Read More about A neural network approach for determining spatial and geometry dependent Green's functions for thermal stress approximation in power plant header components.

A series hybrid “real inertia” energy storage system (2018)
Journal Article
Rouse, J., Garvey, S., Cárdenas, B., & Davenne, T. (2018). A series hybrid “real inertia” energy storage system. Journal of Energy Storage, 20, 1-15. https://doi.org/10.1016/j.est.2018.08.006

The wide scale market penetration of numerous renewable energy technologies is dependent, at least in part, on developing reliable energy storage methods that can alleviate concerns over potentially interrupted and uncertain supplies. Many challenges... Read More about A series hybrid “real inertia” energy storage system.

Stability of packed bed thermoclines (2018)
Journal Article
Davenne, T. R., Garvey, S. D., Cardenas, B., & Rouse, J. P. (2018). Stability of packed bed thermoclines. Journal of Energy Storage, 19, 192-200. https://doi.org/10.1016/j.est.2018.07.015

© 2018 Packed bed thermoclines have attracted considerable interest as an economical method for storing large amounts of thermal energy. They are a constituent part of a range of proposed thermo-mechanical energy storage systems, such as Adiabatic Co... Read More about Stability of packed bed thermoclines.

The Prediction of isothermal cyclic plasticity in 7175-T7351 aluminium alloy with particular emphasis on thermal ageing effects (2018)
Journal Article
Wing Cheong, M. L., Rouse, J., Hyde, C., & Kennedy, A. (2018). The Prediction of isothermal cyclic plasticity in 7175-T7351 aluminium alloy with particular emphasis on thermal ageing effects. International Journal of Fatigue, 114, 92-108. https://doi.org/10.1016/j.ijfatigue.2018.05.010

Rapid thermal ageing has been observed in the literature for certain aerospace aluminium alloys under conditions which are foreseeable in their intended component applications. While several experimental programs have explored this phenomenon in the... Read More about The Prediction of isothermal cyclic plasticity in 7175-T7351 aluminium alloy with particular emphasis on thermal ageing effects.

A case study investigation into the effects of spatially dependent convection coefficients on the fatigue response of a power plant header component (2018)
Journal Article
Rouse, J., Zacharzewski, P., Hyde, C., Jefferson-Loveday, R. J., Morris, A., & Kyaw, S. (2018). A case study investigation into the effects of spatially dependent convection coefficients on the fatigue response of a power plant header component. International Journal of Fatigue, 113, 137-148. https://doi.org/10.1016/j.ijfatigue.2018.03.032

Societal and environmental pressures are forcing thermal power plant operators to deviate greatly from the generation strategies of the past. The application of high frequency start up/shut down/partial load cycles to components that may well be outs... Read More about A case study investigation into the effects of spatially dependent convection coefficients on the fatigue response of a power plant header component.

A thermodynamically-based viscoelastic-viscoplastic model for the high temperature cyclic behaviour of 9-12% Cr steels (2018)
Journal Article
Benaarbia, A., Rouse, J. P., & Sun, W. (2018). A thermodynamically-based viscoelastic-viscoplastic model for the high temperature cyclic behaviour of 9-12% Cr steels. International Journal of Plasticity, 107, https://doi.org/10.1016/j.ijplas.2018.03.015

Improving the understanding of the long term rate dependent behaviour of materials is of critical importance in many engineering applications. Without this understanding, it is potentially difficult to ensure safe and effective plant operation while... Read More about A thermodynamically-based viscoelastic-viscoplastic model for the high temperature cyclic behaviour of 9-12% Cr steels.

Experimental and numerical analysis of initial plasticity in P91 steel small punch creep samples (2017)
Journal Article
Cortellino, F., Sun, W., Rouse, J. P., Cacciapuoti, B., & Hyde, T. (in press). Experimental and numerical analysis of initial plasticity in P91 steel small punch creep samples. Experimental Mechanics, 57(8), https://doi.org/10.1007/s11340-017-0296-9

To date, the complex behaviour of small punch creep test (SPCT) specimens has not been completely understood, making the test hard to numerically model and the data difficult to interpret. This paper presents a novel numerical model able to generate... Read More about Experimental and numerical analysis of initial plasticity in P91 steel small punch creep samples.

Effects of surface roughness on thermo-mechanical fatigue life of a P91 power plant steel (2016)
Journal Article
Kyaw, S. T., Rouse, J. P., Lu, J., & Sun, W. (in press). Effects of surface roughness on thermo-mechanical fatigue life of a P91 power plant steel. https://doi.org/10.1016/j.prostr.2016.06.086

P91 martensitic steel has now been widely used for power plant components such as steam pipe sections and headers. With the shift to renewable sources, traditional fossil power plants are increasingly expected to operate under so called “two shifting... Read More about Effects of surface roughness on thermo-mechanical fatigue life of a P91 power plant steel.

Determination of material parameters for a unified viscoplasticity-damage model for a P91 power plant steel (2016)
Journal Article
Kyaw, S. T., Rouse, J. P., Lu, J., & Sun, W. (2016). Determination of material parameters for a unified viscoplasticity-damage model for a P91 power plant steel. International Journal of Mechanical Sciences, 115-116, https://doi.org/10.1016/j.ijmecsci.2016.06.014

Societal pressures are mounting on electricity operators to operate traditional fossil-fuel power plants in an efficient and flexible manner in conjunction with renewable power plants. This requires the uses of high frequency start up – shut down loa... Read More about Determination of material parameters for a unified viscoplasticity-damage model for a P91 power plant steel.

A comparison of simple methods to incorporate material temperature dependency in the Green’s function method for estimating transient thermal stresses in thick-walled power plant components (2016)
Journal Article
Rouse, J., & Hyde, C. J. (in press). A comparison of simple methods to incorporate material temperature dependency in the Green’s function method for estimating transient thermal stresses in thick-walled power plant components. Materials, 9(1), https://doi.org/10.3390/ma9010026

The threat of thermal fatigue is an increasing concern for thermal power plant operators due to the increasing tendency to adopt “two-shifting” operating procedures. Thermal plants are likely to remain part of the energy portfolio for the foreseeable... Read More about A comparison of simple methods to incorporate material temperature dependency in the Green’s function method for estimating transient thermal stresses in thick-walled power plant components.

Pragmatic optimisation methods for determining material constants of viscoplasticity model from isothermal experimental data (2013)
Journal Article
Rouse, J. P., Hyde, C. J., Sun, W., & Hyde, T. (in press). Pragmatic optimisation methods for determining material constants of viscoplasticity model from isothermal experimental data. Materials Science and Technology, 30(1), https://doi.org/10.1179/1743284713Y.0000000277

A procedure to estimate material constants for the unified Chaboche viscoplasticity model from experimental data has been published elsewhere; however several critical assumptions are made to enable this and potential numerical problems can limit the... Read More about Pragmatic optimisation methods for determining material constants of viscoplasticity model from isothermal experimental data.

Comparison of several optimisation strategies for the determination of material constants in the Chaboche visco-plasticity model (2013)
Journal Article
Rouse, J. P., Hyde, C. J., Sun, W., & Hyde, T. (2013). Comparison of several optimisation strategies for the determination of material constants in the Chaboche visco-plasticity model. Journal of Strain Analysis for Engineering Design, 48(6), https://doi.org/10.1177/0309324713490925

Determining representative material constant sets for models that can accurately predict the complex plasticity and creep behaviour of components undergoing cyclic loading is of great interest to many industries. The Chaboche unified visco-plasticity... Read More about Comparison of several optimisation strategies for the determination of material constants in the Chaboche visco-plasticity model.

Effective determination of cyclic-visco-plasticity material properties using an optimisation procedure and experimental data exhibiting scatter (2013)
Journal Article
Rouse, J. P., Hyde, C. J., Sun, W., & Hyde, T. H. (2013). Effective determination of cyclic-visco-plasticity material properties using an optimisation procedure and experimental data exhibiting scatter. Materials at High Temperatures, 30(2), 117-128. https://doi.org/10.3184/096034013x13720928952114

It may be inevitable in the design and analysis of most high temperature components (such as power industry pipe work) that variations in load and/or temperature will occur in normal operation. This presents complications in the prediction of the res... Read More about Effective determination of cyclic-visco-plasticity material properties using an optimisation procedure and experimental data exhibiting scatter.