Department of Mechanical and Aerospace EngineeringOUR PEOPLE
Qing-Ping SUN 孫慶平
PhD, Tsinghua
Associate Head & Professor of Mechanical and Aerospace Engineering
Director of Institute of Integrated Microsystem, Hong Kong University of Science & Technology



Prof. Sun's major research areas are mechanics of phase transitions and constitutive theory of solids. Before joining HKUST, he was a professor of solid mechanics in Tsinghua University, Beijing, China. He was a visiting professor at two French Universities (1994, 1996, 1998) and served as member of the international scientific committees for several international conferences. He was honored as the recipient of the 1995 National Natural Science Awards of China and the recipient of the 2000 Citation Classic Award by The Institute for Scientific Information (ISI).

 

Teaching Activities

MECH3020 Solid Mechanics II
MECH5010 Foundation of Solid Mechanics

 

Research Interests

Mechanics and physics of martensitic phase transformations in solids
Microstructure-property relationships and material instability in Shape Memory Alloys (SMAs)
Microstructure design of SMA composites; micromechanics constitutive modeling of single and polycrystalline SMAs
Thermomechanical behavior of thin film and porous SMAs
Application of SMAs in surgical instruments and bio-materials
Mechanics of fabric materials

 

Research Projects

  • RGC-CERG Project - Modelling and computational study of macroscopic domain evolution in polycrystalline NiTi tubing (2007-2008).
  • RGC-CERG Project - Dynamic characterization of high-strength fibers/yarns and NiTi microtubes by using a mini-SHTB system (2006-2009).
  • RGC-CERG Project - Wear behaviour and mechanism of thin film NiTi shape memory alloy at micro-scales: Phase transition versus plasticity (2006-2007).
  • RGC-CERG Project - Effects of temperature and texture-induced anisotropy on deformation instability of NiTi shape memory alloy micro-tubes (2005-2007).

 

Selected Publications

Review papers (refereed):

  • Q. P. Sun, "Macroscopic Deformation Instability, Pattern Formation and Evolution during Stress-induced Phase Transformation in NiTi Polycrystals”, to appear in Applied Mechanics Review, ASME, 2008.
  • Refereed journal papers
  • Qian, L., Sun, Q. P. and Zhou, Z., “The role of martensite reorientation in the fretting behaviour of nickel titanium shape memory alloy”, Proc. IMechE, Part J: J. Engineering Tribology, 2008, 222(J7), 887-897.
  • Y. J. He and Q. P. Sun, “Continuum modeling on macroscopic domain patterns during stress induced phase transition in NiTi tubes “, Advanced Materials Research, Vols. 47-50 (2008), pp. 964-967.
  • P. Feng and Q. P. Sun, “Experimental observation on domain front morphology in
  • NiTi microtube during tensile unloading “, Advanced Materials Research, Vols. 47-50(2008), pp. 519-522.
  • W. Yan, Q. P. Sun and H. Y. Liu, “Effect of Transformation Volume Strain on the Spherical Indentation of Shape Memory Alloys”, Int. J. of Modern Physics B, Vol. 22, Nos. 31 & 32 (2008) 5957–5964.
  • W. Yan, Q. P. Sun and P. Hodgson, “Determination of plastic yield stress from spherical indentation slope curve”, Materials Letters, 62 (2008) 2260-2262.
  • Feng, X,. Q., L. M. Qian, W. Y. Yan, and Q. P. Sun, “Wearless scratch on NiTi shape memory alloy due to phase transformational shakedown”, Applied Physics Letters, 92, 121909, 2008.
  • Hu Z. D. and Q. P. Sun, “-------------“, Chin. Quart. Mech. 26, 389, 2005.
  • W. Yan, Q. P. Sun and P. Hodgson, “A characteristic of spherical indentation curve and its application in measuring material properties”, Materials Science Forum, Vols. 561-565 (2007), pp. 2131-2134.
  • Y. J. He and Q. P. Sun, “pattern and scaling in tube”, submitted to IJSS, 2007.
  • Z. Hu, Q. P. Sun and Z. Zhong, “Numerical simulation for stress-induced phase transformation of SMAs tube under tension”, Key Engineering Materials, Vols. 340-341 (2007), pp. 1181-1186.
  • Y. J. He and Q. P. Sun, “Instability, domain evolution and hysteresis in a shape memory alloy plate: Results of two-dimensional continuum modelling”, submitted to J. Mech. Phys. Solids.
  • Q. P. Sun and Y. J. He, “A multiscale continuum model on the grain size dependence of the stress hysteresis in shape memory alloy polycrystals”, Int. J. Solids and Structures, 45 (2008) 3868-3896.
  • Qian L. M., Zhou Z. R. and Q. P. Sun and W. Y. Yan, “Nanofretting behavior of NiTi shape memory alloy”, Wear 263 (2007) 501-507.
  • W. Y. Yan and Q. P. Sun, “Spherical Indentation of Superelastic Shape Memory Alloys”, Key Engineering Materials, Vol. 334-335 (2007), pp. 601-604.
  • W. Y. Yan, Q. P. Sun, and H. Y. Liu, “Indentation Hardness Analysis of Superelastic Shape Memory Alloys”, Key Engineering Materials, Vol. 312 (2006), pp. 333-338.
  • W. Y. Yan, Q. P. Sun, and H. Y. Liu, “Spherical indentation hardness of shape memory alloys”, Material Science and Engineering A, 425(2006), pp. 278-285.
  • X. Q. Feng and Q. P. Sun, “Shakedown analysis of shape memory alloy structures”, Int. J. Plasticity, 23 (2007), pp. 183-206.
  • W. Y. Yan, Q. P. Sun, XQ Feng and LM Qian, “Determination of transformation stresses of shape memory alloys thin film – a method based on spherical indentation”, Applied Physics Letter, 241912, 88 (2006).
  • Qian, L. M., Z. Zhou, Q. P. Sun and W. Yan, “Nanofretting behavior of NiTi shape memory alloy”, Wear, (2007, accepted and in press).
  • P. Feng and Q. P. Sun, “Experimental investigation on Macroscopic Domain Formation and Evolution in Polycrystalline NiTi Microtubing under Mechanical Force”, J. Mech. Phys. Solids, 54 (2006), pp. 1568-1603.
  • Qian, L. M., Q. P. Sun and X. D. Xiao, "Role of Phase Transition in the Unusual Microwear Behavior of Superelastic NiTi Shape Memory Alloy", Wear, 260(2006), pp.509-522.

Refereed Conference Papers:

  • W. Yan and Q. P. Sun, “Spherical indentation method to determine the transformation stresses of Superelastic Shape Memory Alloys”, organized by J. K. Kim and L. M. Zhou, Conference ACCM5 at HKUST, 23-25 November, 2006.
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