Materials engineering : high-tech composites to ancient metals (2009)
Zhang, SY, Godfrey, E, Kockelmann, W, Paradowska, A, Bull, M, Abbey, B, ...
Neutron diffraction methods offer a direct measure of the elastic component of strain deep within crystalline materials through precise characterisation of the interplanar crystal lattice spacing....
High-tech composites to ancient metals (2009)
Zhang, SY, Godfrey, E, Kockelmann, W, Paradowska, A, Bull, MJ, Korsunsky, AM, ...
Song, X, Zhang, SY, Dini, D, Korsunsky, AM
Most models based on continuum mechanics do not account for inhomogeneities at the micro-scale. This can be achieved by considering a representative volume of material and using (poly)crystal...
Dini, D, Zhang, SY, Song, X, Korsunsky, A
In this paper we review some of the modelling and experimental techniques recently developed for the analysis of the macro- and meso-scopic behaviour of polycrystalline aggregates. We discuss the use...
High energy X-ray diffraction as a method of strain analysis (2008)
Strain analysis in engineering components and assemblies is important for the purposes of evaluating deformation response to in service or laboratory loading, so as to characterise the presence of...
Analysis of strain-induced peak broadening (2008)
Hlfmann, F, Zhang, SY, Jun, TS, Korsunsky, AM
X-ray diffraction measurement in the bulk of engineering components allows evaluation of lattice spacing variation by application of Bragg law and hence, by comparison with a strain-free reference...
Zhang, SY, Venter, A, Vorster, WJJ, Korsunsky, A
Shot peening has long been recognized as a method for treating metal surfaces in order to improve their resistance to crack initiation and propagation. In view of shot peening control, it would be...
Korsunsky, AM, Vorster, WJJ, Zhang, SY, Dini, D, Latham, D, Golshan, M, ...
Residual stress in laser bent steel components (2006)
Topic, M, Bucher, R, Vorster, W, Zhang, SY, McGrath, P, Korsunsky, AM
A Feasibility study of a neutrino source based on a muon storage ring (2000)
Holtkamp, N, Finley, DA, Anderson, T, Andreev, N, Ankenbrandt, CM, Assadi, S, ...
Neutrino Factory Collaboration, Ayres, D, Goodman, M, Hassanein, A, Joffe-Minor, T, Krakauer, D, ...
Fault tolerant decentralized H∞ control for symmetric composite systems (1999)
Huang, SD, Lam, J, Yang, GH, Zhang, SY
Discusses a class of large-scale systems composed of symmetrically interconnected identical subsystems. We consider the decentralized H∞ control design problem and study the fault tolerance of the...
Reliable control using redundant controllers (1998)
Yang, G, Zhang, SY, Lam, J, Wang, J
This paper presents a methodology for the design of reliable control systems by using multiple identical controllers to a given plant. The resulting closed-loop control system is reliable in the...
Zhang, SY, Oliver, E, Santisteban, J, Korsunsky, AM
The aim of the study here is to present the concept of strain tomography using Bragg edge neutron transmission measurements. The principle of this novel approach is to analyze residual strain fields...
Feasibility study of neutron strain tomography
Abbey, B, Zhang, SY, Vorster, W, Korsunsky, AM
Extraction of information about residual elastic strain within the bulk is of primary importance in understanding deformation and stress within engineering components. Current techniques for mapping...
A study of residual stresses in vacuum plasma sprayed tungsten coatings
Jun, TS, Zhang, SY, Appleby-Thomas, G, Grant, PS, Korsunsky, AM
Thick tungsten (W) coatings are potential plasma facing materials in fusion reactors, but the coefficient of thermal expansion (CTE) mismatch between W and Cu or steel substrates leads to large...
High energy white beam X-ray diffraction studies of residual strains in engineering components
Zhang, SY, Vorster, WJJ, Jun, T, Song, X, Golshan, M, Laundy, D, ...
In order to predict the durability of engineering components and improve performance, it is mandatory to understand residual stresses. The last decade has witnessed a significant increase of residual...