School of Computing and Mathematics
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I obtained a BSc in Mathematics and Mechanics (1982) from Central South University, China, and an MSc (1986) and a PhD (1988) in Theoretical Mechanics both from the University of East Anglia and supervised by Dr. Nigel Scott. I then spent three years in Exeter University as a post-doctoral research fellow working with Prof. Philip Hall on a US Air Force funded project. In 1991 I was appointed to a Lectureship in Mathematics at the University of Manchester. Six year later, I moved to Keele University as a Senior Lecturer. I was promoted to Reader in 1999 and became Professor of Applied Mathematics in 2001.
I view myself as a typical applied mathematician and I work in the general area of solid mechanics. My main research interest is in characterizing linear and nonlinear elastic waves and stability/bifurcation of pre-stressed elastic solids and structures. Studies of elastic waves have important applications in signal processing, seismology and non-destructive testing, whereas stability/bifurcation analysis has applications in assessing the integrity of structures under stress. My recent contributions include (i) resolution of a long-standing dispute concerning the derivation of evolution equations for nonlinear surface acoustic waves, (ii) a Hamiltonian interpretation of the well-known Stroh formalism which provides the necessary framework for extending the Stroh formalism to other situations such as plate bending, (iii) further insight into the problem of localized bulging in inflated membrane tubes which has applications in aneurysm modelling; (iv) showing that subcritical localization is more susceptible to material or geometrical imperfections than classical subcritical bifurcations into sinusoidal patterns (to be more precise, the former obeys a square root rule whereas the latter obeys Koiter's two-thirds
power rule).
Scholarship: I am an editor for the IMA Journal of Applied Mathematics and an editorial board member of (i) Acta Mechanica Solida Sinica, (ii) International Journal of Applied Mechanics, and (iii) Acta Mechanica Sinica.
Selected Publications
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2012. Effects of imperfections on localized bulging in inflated membrane tubes. Philosophical Transactions of the Royal Society of London, vol. A 370(1965), 1896-1911. doi> full text>
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2012. Initiation of aneurysms as a mechanical bifurcation phenomenon. International Journal of Non-lineear Mechanics, vol. 47, 179-184. doi> full text>
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2010. Solitary waves in fluid-filled elastic tubes: existence, persistence, and the role of axial displacement. IMA JOURNAL OF APPLIED MATHEMATICS, vol. 75(2), 257-268. link> doi> full text>
Full Publications List show
Books
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2001. Nonlinear elasticity. Cambridge Univ Pr.
Journal Articles
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2012. Effects of imperfections on localized bulging in inflated membrane tubes. Philosophical Transactions of the Royal Society of London, vol. A 370(1965), 1896-1911. doi> full text>
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2012. Initiation of aneurysms as a mechanical bifurcation phenomenon. International Journal of Non-lineear Mechanics, vol. 47, 179-184. doi> full text>
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2010. Characterization and stability of localized bulging/necking in inflated membrane tubes. IMA JOURNAL OF APPLIED MATHEMATICS, vol. 75(4), 581-602. link> doi> full text>
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2010. Solitary waves in fluid-filled elastic tubes: existence, persistence, and the role of axial displacement. IMA JOURNAL OF APPLIED MATHEMATICS, vol. 75(2), 257-268. link> doi> full text>
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2009. CHAOTIC MOTION AND HAMILTONIAN DYNAMICS OF A PRESTRESSED INCOMPRESSIBLE ELASTIC PLATE DUE TO RESONANT-TRIAD INTERACTIONS. INTERNATIONAL JOURNAL OF BIFURCATION AND CHAOS, vol. 19(3), 903-921. link>
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2008. Post-bifurcation analysis of a thin-walled hyperelastic tube under inflation. INTERNATIONAL JOURNAL OF NON-LINEAR MECHANICS, vol. 43(8), 697-706. link> doi> full text>
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2007. Hamiltonian interpretation of the Stroh formalism in anisotropic elasticity. Proc. Roy. Soc. Lond. A, vol. 463, 3073-3087. doi> full text>
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2007. A note on perturbation formulae for the surface-wave speed due to perturbations in material properties. JOURNAL OF ELASTICITY, vol. 88(3), 187-192. link> doi> full text>
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2006. An explicit expression for the surface-impedance tensor of a compressible monoclinic material in a state of plane strain. IMA JOURNAL OF APPLIED MATHEMATICS, vol. 71(3), 434-445. link> doi> full text>
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2006. Edge waves in asymmetrically laminated plates. Journal of the Mechanics and Physics of Solids , vol. 54(1), 1-21. doi>
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2002. A new identity for the surface impedance matrix and its application to the determination of surface-wave speeds. Proceedings of the Royal Society of London A, vol. A458, 2523-2543. doi>
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2002. WKB method with repeated roots and its application to the buckling analysis of an everted cylindrical tube. SIAM JOURNAL ON APPLIED MATHEMATICS, vol. 62(6), 1856-1871. link>
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1999. On the imperfection sensitivity of a coated elastic half-space. PROCEEDINGS OF THE ROYAL SOCIETY A-MATHEMATICAL PHYSICAL AND ENGINEERING SCIENCES, vol. 455(1989), 3285-3309. link>
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1994. A NONLINEAR-ANALYSIS OF INSTABILITY OF A PRESTRESSED INCOMPRESSIBLE ELASTIC PLATE. PROCEEDINGS OF THE ROYAL SOCIETY OF LONDON SERIES A-MATHEMATICAL PHYSICAL AND ENGINEERING SCIENCES, vol. 446(1927), 233-254. link>
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1993. AN ASYMPTOTIC STRESS-ANALYSIS OF LAMINATED PLATES. INTERNATIONAL JOURNAL OF SOLIDS AND STRUCTURES, vol. 30(23), 3245-3260. link>
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1992. NONLINEAR DEVELOPMENT AND SECONDARY INSTABILITY OF LARGE-AMPLITUDE GORTLER VORTICES IN HYPERSONIC BOUNDARY-LAYERS. EUROPEAN JOURNAL OF MECHANICS B-FLUIDS, vol. 11(4), 465-510. link>
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1991. NONLINEAR DEVELOPMENT AND SECONDARY INSTABILITY OF LARGE-AMPLITUDE GORTLER VORTICES IN HYPERSONIC BOUNDARY-LAYERS. EUROPEAN JOURNAL OF MECHANICS B-FLUIDS, vol. 10(2), 283-288. link>
Chapters
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2007. Linear and nonlinear wave propagation in coated or uncoated elastic half-spaces. In Waves in nonlinear pre-stressed materials. Destrade M, Saccomandi G, Sciences ICFM (Eds.). Springer Verlag. link> doi> link> full text>
Other
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2002. Analysis of edge waves using a Stroh-like formulation. PROCEEDINGS OF THE 4TH INTERNATIONAL CONFERENCE ON NONLINEAR MECHANICS (pp. 434-439). link>
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1999. Buckling of an elastic half-space with surface imperfections. Proceedings of the 1st Canadian Conference on Nonlinear Solid Mechanics (vol. 1, pp. 99-107). The University of Victoria. full text>
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1996. Nonlinear Stability Analysis of a Pre-stressed Elastic Half-space. In RC. Batra & MF. Beatty (Eds.). Contemporary Research in the Mechanics and Mathematics of Materials (pp. 164-175). Barcelona: CIMNE. full text>
MAT-30003: Partial Differential Equations

