Mechanical Behaviour of Materials (MBM)

Profile

Research Interests

• Fatigue and fracture of engineering materials and components.
• Constitutive material models
• Multiaxial and mixed mode fatigue and fracture
• High temperature fatigue and creep-fatigue interaction
• Biomechanics of bones and tissues

Grants Won as Principal Investigator

• Developing Improved Service Propagation Lives in Arduous Cyclic Environment (DISPLACE), DTI/TSB, 2008-11.
• Fatigue Crack Growth in Complex Residual Stress Field due to Surface Treatment and Foreign Object Damage under Simulated Flight Cycles.  EPSRC/MOD, 2007-10.
• Towards Improved Long-term Fixation in Cemented Acetabular Cups.
    Arthritis Research Council, 2005-2008.
• Two Stage Fracture Models.
    INTAS (EU), 2004-2007.
• Modelling of Implanted Acetabula.
    Royal Society Research Grant, 2003-2004.
• Interface Behaviour in Artificially Replaced Acetabula.
    MRC, 2003.
• Load Transfer and Stress Distribution in Artificially Replaced Acetabula.
    NHS Research Fund, 2002-2005.
• A Study of Creep-fatigue Interaction in Superalloys.
    QinetiQ, 1999-2002.
• Viscoplasticity Modelling of RR1000 Alloy. 
    Royal Society Research Grant, 1999-2000.
• Fatigue Integrity of Advanced Nickel Base Superalloys for Gas Turbine Discs. 
    EPSRC, 1999-2002.
• Unified Constitutive Models for Creep-Fatigue Interaction in Superalloys. 
    DERA, 1999-2001.

Selected Recent Publications

1. G Tozzi, Q-H Zhang, J Tong (2012) 3D real-time micromechanical compressive behaviour of bone-cement interface: experimental and finite element studies. Journal of Biomechanics, 45, 356-363.
2. G Tozzi, C Lupton, P Heaton-Adegbile, J Tong (2012) Damage evolution in acetabular reconstructs under physiologicaltesting in a saline environment. Journal of Biomechanics, 45, 405-408.
3. J Tong, LG Zhao, B Lin (2012) Ratchetting strain as a driving force for fatigue crack growth, International Journal of Fatigue, in press.
4. T Guillén, Q-H Zhang, G Tozzi, A Ohrndorf, H-J Christ and J Tong 2011, Compressive behaviour of bovine cancellous bone and bone analogous materials, microCT characterisation and FE analysis. Journal of the Mechanical Behavior of Biomedical Materials, 4, 1452-1461. 
5. S Spanrad and J Tong (2011) Characterisation of foreign object damage (FOD) and early fatigue crack growth in laser shock peened Ti–6Al–4V aerofoil specimens. Materials Science and Engineering A, 528, 2128-2136.
6. C Cornet, LG Zhao, J Tong (2011) A study of cyclic behaviour of a nickel-based superalloy at elevated temperature using a viscoplastic-damage mode. International Journal of Fatigue, 33, 241-249.
7. Q-H Zhang, J-Y Wang, C Lupton, P Heaton-Adegbile, Z-X Guo, Q Liu, J Tong (2010) A subject-specific pelvic bone model and its application to cemented acetabular replacements. Journal of Biomechanics, 43, 2722-2727.
8. J-Y Wang, G Tozzi, J Chen, F Contal, C Lupton, J Tong (2010) Bone–cement interfacial behaviour under mixed mode loading conditions. Journal of the Mechanical Behavior of Biomedical Materials, 3, 392-398.
9. B Lin, LG Zhao, J Tong, H-J Christ (2010) Crystal plasticity modelling of cyclic deformation for a polycrystalline nickel based superalloy at high temperature. Materials Science and Engineering A 527, 3581-3587.
10. LG Zhao, J Tong, MC Hardy (2010) Prediction of crack growth for a nickel base superalloy under fatigue-oxidation condition. Engineering Fracture Mechanics, 77, 925-938.

Teaching

• Structural Integrity (M.SI)
• Engineering fracture mechanics (MB3.6; M.MBM)

Administration

• RAE Coordinator (UOA12)
• Member of University, Faculty and School Research and Knowledge Transfer Committees