Clive Siviour MA MPhys PhD

Professor Clive Siviour completed an MPhys (2001) and PhD (2005) in the department of Physics, University of Cambridge, where he worked primarily on measuring the properties of materials under high strain rate deformation using the split Hopkinson bar.

Clive moved to Oxford in October 2005 to take up a Career Development Fellowship in Engineering, and was appointed to his current position in October 2008.

Clive's research investigates the behaviour of materials and structures when subjected to impact loading. Most materials behave very differently when deformed at high speeds, and our research aims to measure this behaviour and to help understand the microscopic causes of rate dependence, with a view to better design and use of materials. We have a particular interest in the development of novel experimental techniques for different materials, and in the use of high speed photography combined with quantitative image analysis. Materials investigated include aerospace alloys (e.g. Titanium), polymers and natural materials, such as silk, this wide range is enabled by extensive collaborations with leading researchers in the fields.

In addition, Clive is a member of the editorial boards for Experimental Mechanics and Strain and has acted as guest editor for special issues of Proc. R. Soc. A. and Journal of Strain Analysis. Clive is regularly on the organising committees for the Society for Experimental Mechanics, APS Shock Compression and DYMAT conferences. In 2015 he took part (with University of Reading) in the Royal Society Summer Science Exhibition, on a stand Materials that Repair Themselves.

In 2016, Clive's contributions to Experimental Mechanics were recognised by an invitation by the Society for Experimental Mechanics to give the JSA Young Investigator plenary lecture at their annual conference.

• IMPRESS - Impact Modelling of Polymers: high-Rate Experiments for Solid-state Simulations (with University of Nottingham)
• Poly(ML): Machine Learning for Improved Sustainable Plastics (with Professor Clifton (Engineering) and Williams (Chemistry)
• iCAST: Innovation Centre for Applied Sustainable Technologies (with Oxford Chemistry and University of Bath) https://icast.org.uk/

S-H Yoon, I Giannakopoulos and CR Siviour “Application of the Virtual Fields Method to the uniaxial behaviour of rubbers at medium strain rates” International Journal of Solids and Structures 69-70 (2015) 553-568 doi: 10.1016/j.ijsolstr.2015.04.017 (doi link)

CR Siviour, JL Jordan, “High Strain Rate Mechanics of Polymers: A Review”, J. dynamic behaviour mater. (2016): 2:15-32 doi: 10.1007/s40870-016-0052-8 (doi link)

MJ Kendall and CR Siviour “Experimentally simulating high-rate behaviour: rate and temperature effects in polycarbonate and PMMA” Phil. Trans. R. Soc. A (2014) 372 20130202 (12 pp) doi: 10.1098/rsta.2013.0202 (doi link)

MJ Kendall and CR Siviour "Experimentally simulating adiabatic conditions: Approximating high rate polymer behaviour using low rate experiments with temperature profiles" Polymer 54 (2013) 5058-5063 (doi link)

DR Drodge, B Mortimer, C Holland and CR Siviour "Ballistic Impact to access the high-rate behaviour of individual silk fibres", Journal of the Mechanics and Physics of Solids 60 (2012) 1710-1721 (doi link)

EJ Wielewski, CR Siviour and N Petrinic "On the Correlation between Macrozones and Twinning in Ti-6Al-4V at Very High Strain Rates" Scripta Materialia, 67 (2102) 229-232 (doi link)

R Gerlach, CR Siviour, J Wiegand and N Petrinic "In-plane and through-thickness properties, failure modes, damage and delamination in 3D woven carbon fibre composites subjected to impact loading" Composites Science and Technology, 72 (2012) 397-411 (doi link)

CR Siviour, PR Laity, WG Proud, JE Field, D Porter, PD Church, P Gould and W Huntingdon-Thresher “High strain rate properties of a Polymer Bonded Sugar: their dependence on applied and internal constraints” Proc. R. Soc. A. 464 (2008) 1229-1255 (doi link)

CR Siviour, SM Walley, WG Proud and JE Field “The high strain rate compressive behaviour of polycarbonate and polyvinylidene difluoride” Polymer 46 (2005) 12546-12555.