Blast and Impact Dynamics

Department of Civil & Structural Engineering

Dr Andrew Barr

Research Associate
Andrew Barr

Contact

a.barr@sheffield.ac.uk

Department of Civil and Structural Engineering
Sir Frederick Mappin Building
Mappin Street,
Sheffield,
S1 3JD

Profile

Andrew joined the group as a PhD student after graduating from The University of Sheffield with an MEng (Hons) in Structural Engineering and Architecture.

He researches how the properties of soils can be used to protect people from the effects of explosions and high-velocity fragments, including

  • High-pressure characterisation of geomaterials
  • Strain-rate effects in soils
  • Moisture content variation in gabion structures

Qualifications

MEng (Hons), Structural Engineering and Architecture, University of Sheffield, 2012

Software

dispersion.m - A MatLab script for phase angle and amplitude correction of pressure bar signals

In processing the signals from split Hopkinson pressure bar (SHPB) experiments it is often assumed that longitudinal stress waves in the pressure bars propagate one-dimensionally at a common velocity c_0, and so measurements taken at the strain gauges are often simply translated to the end of the bar using a...

Research project(s)

Strain-rate effects in quartz sand

Sand
Soil-filled wire and geotextile gabions are commonly used to construct perimeter walls and other defensive infrastructure in military bases. They serve to protect personnel and key assets from the effects of blast and fragmentation. The attenuating properties of soil make it a highly effective defence against such threats, and as...

Publication(s)

(2013). Strain rate and moisture effects on sand response. In 1st UK Defence Seminar on the High Strain Rate Properties of Soils and Granular Media , Abstract: As part of the UK MoD Force Protection Engineering programme, research has been conducted looking into the fundamental driving forces behind large scale physics. This has involved conducting both quasi-static (Mac2T) and dynamic (Split Hopkinson Pressure Bar) on sands of varying moisture contents...

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