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Fullerene-free organic solar cells with an efficiency of 3.7% based on a low-cost geometrically planar perylene diimide monomer (2014)
Journal Article
Singh, R., Aluicio-Sarduy, E., Kan, Z., Ye, T., MacKenzie, R., & Keivanidis, P. (2014). Fullerene-free organic solar cells with an efficiency of 3.7% based on a low-cost geometrically planar perylene diimide monomer. Journal of Materials Chemistry A, 2(35), 14348-14353. https://doi.org/10.1039/c4ta02851a

The aggregate-induced limitation for high power-conversion efficiencies (PCEs) of perylene-diimide (PDI): polymer solar cells can be circumvented when two simple rules are respected; the aggregate size of PDI remains short enough and the omnipresent... Read More about Fullerene-free organic solar cells with an efficiency of 3.7% based on a low-cost geometrically planar perylene diimide monomer.

Optimization of piezoelectric cantilever energy harvesters including non-linear effects (2014)
Journal Article
Patel, R., McWilliam, S., & Popov, A. (2014). Optimization of piezoelectric cantilever energy harvesters including non-linear effects. Smart Materials and Structures, 23(8), Article 085002. https://doi.org/10.1088/0964-1726/23/8/085002

This paper proposes a versatile non-linear model for predicting piezoelectric energy harvester performance. The presented model includes (i) material non-linearity, for both substrate and piezoelectric layers, and (ii) geometric non-linearity incorpo... Read More about Optimization of piezoelectric cantilever energy harvesters including non-linear effects.

An alternative non-vacuum and low cost ESAVD method for the deposition of Cu(In,Ga)Se2 absorber layers (2014)
Journal Article
Wang, M., Hou, X., Liu, J., Choy, K., Gibson, P., Salem, E., …Cranton, W. (2015). An alternative non-vacuum and low cost ESAVD method for the deposition of Cu(In,Ga)Se2 absorber layers. Physica Status Solidi a Applied Research, 212, https://doi.org/10.1002/pssa.201431295

In this article, an environmentally friendly and non vacuum electrostatic spray assisted vapour deposition (ESAVD) process has been developed as an alternative and low cost method to deposit CIGS absorber layers. ESAVD is a non-vacuum chemical vapour... Read More about An alternative non-vacuum and low cost ESAVD method for the deposition of Cu(In,Ga)Se2 absorber layers.

Effect of specimen history on structure and in-plane permeability of woven fabrics (2014)
Journal Article
Endruweit, A., Zeng, X., & Long, A. C. (2015). Effect of specimen history on structure and in-plane permeability of woven fabrics. Journal of Composite Materials, 49(13), https://doi.org/10.1177/0021998314536070

Before being processed into composites, reinforcement fabrics may undergo repeated involuntary deformation, the complete sequence of which is here referred to as specimen history. To mimic its effect, fabric specimens were subjected to sequences of d... Read More about Effect of specimen history on structure and in-plane permeability of woven fabrics.

Analysis of filament arrangements and generation of statistically equivalent composite micro-structures (2014)
Journal Article
Gommer, F., Endruweit, A., & Long, A. C. (2014). Analysis of filament arrangements and generation of statistically equivalent composite micro-structures. Composites Science and Technology, 99, https://doi.org/10.1016/j.compscitech.2014.05.008

An efficient method to describe and quantify the filament arrangement in fibre bundles based on the analysis of micrographs was developed. Quantitative measurement of relative filament positions indicated that the initially random arrangement of fila... Read More about Analysis of filament arrangements and generation of statistically equivalent composite micro-structures.

Mechanism investigation of friction-related effects in single point incremental forming using a developed oblique roller-ball tool (2014)
Journal Article
Lu, B., Fang, Y., Xu, D., Chen, J., Ou, H., Moser, N., & Cao, J. (2014). Mechanism investigation of friction-related effects in single point incremental forming using a developed oblique roller-ball tool. International Journal of Machine Tools and Manufacture, 85, 14-29. https://doi.org/10.1016/j.ijmachtools.2014.04.007

Single point incremental forming (SPIF) is a highly versatile and flexible process for rapid manufacturing of complex sheet metal parts. In the SPIF process, a ball nose tool moves along a predefined tool path to form the sheet to desired shapes. Due... Read More about Mechanism investigation of friction-related effects in single point incremental forming using a developed oblique roller-ball tool.

An error diffusion based method to generate functionally graded cellular structures (2014)
Journal Article
Brackett, D., Ashcroft, I., Wildman, R., & Hague, R. J. (2014). An error diffusion based method to generate functionally graded cellular structures. Computers and Structures, 138, https://doi.org/10.1016/j.compstruc.2014.03.004

The spatial variation of cell size in a functionally graded cellular structure is achieved using error diffusion to convert a continuous tone image into binary form. Effects of two control parameters, greyscale value and resolution on the resulting c... Read More about An error diffusion based method to generate functionally graded cellular structures.

Cyclic viscoplasticity testing and modeling of a service-aged P91 steel (2014)
Journal Article
Hyde, C. J., Sun, W., Hyde, T., Rouse, J., Farragher, T., O'Dowd, N. P., & Leen, S. (2014). Cyclic viscoplasticity testing and modeling of a service-aged P91 steel. Journal of Pressure Vessel Technology, 136(4), Article 044501. https://doi.org/10.1115/1.4026865

A service-aged P91 steel was used to perform an experimental program of cyclic mechanical testing in the temperature range of 400 °C–600 °C, under isothermal conditions, using both saw-tooth and dwell (inclusion of a constant strain dwell period at t... Read More about Cyclic viscoplasticity testing and modeling of a service-aged P91 steel.

Drag reduction in turbulent channel flow using bidirectional wavy Lorentz force (2014)
Journal Article
Huang, L., Choi, K., Fan, B., & Chen, Y. (2014). Drag reduction in turbulent channel flow using bidirectional wavy Lorentz force. Science China Physics, Mechanics and Astronomy, 57(11), https://doi.org/10.1007/s11433-014-5416-2

Turbulent control and drag reduction in a channel flow via a bidirectional traveling wave induced by spanwise oscillating Lorentz force have been investigated in the paper. The results based on the direct numerical simulation (DNS) indicate that the... Read More about Drag reduction in turbulent channel flow using bidirectional wavy Lorentz force.

A novel nethod of extraction of blend component structure from SANS measurements of homopolymer bimodal blends (2014)
Journal Article
Smerdova, O., Graham, R. S., Gasser, U., Hutchings, L. R., & De Focatiis, D. S. (2014). A novel nethod of extraction of blend component structure from SANS measurements of homopolymer bimodal blends. Macromolecular Chemistry and Physics, 215(9), https://doi.org/10.1002/macp.201300787

A new method is presented for the extraction of single chain form factors and inter-chain interference functions from a range of small angle neutron scattering (SANS) experiments on bimodal homopolymer blends. The method requires a minimum of three b... Read More about A novel nethod of extraction of blend component structure from SANS measurements of homopolymer bimodal blends.

Combined hydrogels that switch human pluripotent stem cells from self-renewal to differentiation (2014)
Journal Article
Dixon, J. E., Shah, D. A., Rogers, C., Hall, S., Weston, N., Parmenter, C. D., …Shakesheff, K. M. (2014). Combined hydrogels that switch human pluripotent stem cells from self-renewal to differentiation. Proceedings of the National Academy of Sciences, 111(15), 5580-5585. https://doi.org/10.1073/pnas.1319685111

The ability of materials to define the architecture and microenvironment experienced by cells provides new opportunities to direct the fate of human pluripotent stem cells (HPSCs) [Robinton DA, Daley GQ (2012) Nature 481(7381):295-305]. However, the... Read More about Combined hydrogels that switch human pluripotent stem cells from self-renewal to differentiation.

Residual stresses in environmental and thermal barrier coatings on curved superalloy substrates: experimental measurements and modelling (2014)
Journal Article
Liu, D., Kyaw, S., Flewitt, P., Seraffon, M., Simms, N., Pavier, M., & Jones, I. (2014). Residual stresses in environmental and thermal barrier coatings on curved superalloy substrates: experimental measurements and modelling. Materials Science and Engineering: A, 606, https://doi.org/10.1016/j.msea.2014.03.014

Residual stresses within thermal barrier coated (TBC) systems are predicted using finite element models and are compared against experimental measurements taken using Raman and photo-stimulated luminescence piezo-spectroscopic methods. Two types of s... Read More about Residual stresses in environmental and thermal barrier coatings on curved superalloy substrates: experimental measurements and modelling.

Optimisation of material properties for the modelling of large deformation manufacturing processes using a finite element model of the Gleeble compression test (2014)
Journal Article
Bennett, C., & Sun, W. (in press). Optimisation of material properties for the modelling of large deformation manufacturing processes using a finite element model of the Gleeble compression test. Journal of Strain Analysis for Engineering Design, 49(6), https://doi.org/10.1177/0309324713520310

The finite element modelling of manufacturing processes often requires a large amount of large plastic strain flow stress data in order to represent the material of interest over a wide range of temperatures and strain rates. Compression data generat... Read More about Optimisation of material properties for the modelling of large deformation manufacturing processes using a finite element model of the Gleeble compression test.

High temperature, low cycle fatigue characterization of P91 weld and heat affected zone material (2014)
Journal Article
Farragher, T., Scully, S., O'Dowd, N., Hyde, C. J., & Leen, S. (2014). High temperature, low cycle fatigue characterization of P91 weld and heat affected zone material. Journal of Pressure Vessel Technology, 136(2), Article 021403. https://doi.org/10.1115/1.4025943

The high temperature low cycle fatigue behavior of P91 weld metal (WM) and weld joints (cross-weld) is presented. Strain-controlled tests have been carried out at 400 °C and 500 °C. The cyclic behavior of the weld material (WM) and cross-weld (CW) sp... Read More about High temperature, low cycle fatigue characterization of P91 weld and heat affected zone material.

A unified viscoplastic model for high temperature low cycle fatigue of service-aged P91 steel (2014)
Journal Article
Barrett, R., Farragher, T., Hyde, C. J., O'Dowd, N., O'Donoghue, P., & Leen, S. (2014). A unified viscoplastic model for high temperature low cycle fatigue of service-aged P91 steel. Journal of Pressure Vessel Technology, 136(2), Article 021402. https://doi.org/10.1115/1.4025618

The finite element (FE) implementation of a hyperbolic sine unified cyclic viscoplasticity model is presented. The hyperbolic sine flow rule facilitates the identification of strain-rate independent material parameters for high temperature applicatio... Read More about A unified viscoplastic model for high temperature low cycle fatigue of service-aged P91 steel.

A Basis for Selecting the Most Appropriate Small Specimen Creep Test Type (2014)
Journal Article
Hyde, T. H., Hyde, C. J., & Sun, W. (2014). A Basis for Selecting the Most Appropriate Small Specimen Creep Test Type. Journal of Pressure Vessel Technology, 136(2), Article 024502. https://doi.org/10.1115/1.4025864

Many components in conventional and nuclear power plant, aero-engines, chemical plant etc., operate at temperatures which are high enough for creep to occur. These include plain pipes, pipe bends, branched pipes etc., the manufacture of such componen... Read More about A Basis for Selecting the Most Appropriate Small Specimen Creep Test Type.

GIS for all: exploring the barriers and opportunities for underexploited GIS applications (2014)
Journal Article
Hao, Y., Brown, M., & Harding, J. (2014). GIS for all: exploring the barriers and opportunities for underexploited GIS applications

Geographical Information Systems have been existed since the early 1960s, but evidence suggests that adoption of GIS technologies still remains relatively low in many sectors. We will explore both the barriers that affect the utilisation of GIS a... Read More about GIS for all: exploring the barriers and opportunities for underexploited GIS applications.