Dr JOHN HARRIGAN

Dr JOHN HARRIGAN The University of Aberdeen School of Engineering Senior Lecturer work +44 (0)1224 272512 work fax +44(0)1224 272497 pref j.harrigan@abdn.ac.uk pref College of Physical Sciences, University of Aberdeen, Department of Engineering, Room F044, Fraser Noble Building, King’s College, Aberdeen, AB24 3UE

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Biography

January 1992 to February 1995: Research Student, UMIST, Manchester.

March 1995 to December 1995: Research Assistant, UMIST, Manchester.

December 1995 to September 1999: Research Associate, UMIST, Manchester.

October 1999 to present: Temporary Lecturer, UMIST, Manchester.

April 2000 to June 2006: Lecturer, UMIST and University of Manchester

July 2006 to present: Senior Lecturer, University of Aberdeen

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Research Interests

Research Group: Mechanics of Materials

Research Area: Impact and Explosion Engineering

Intermediate and high strain-rate testing of materials and structures

• Deconvolution techniques for measurement of dynamic force histories
• Signal processing and the spectral finite element method
• Hopkinson bar techniques
• High strain-rate properties of soft and cellular materials

Impact Energy Absorption and Dynamic Structural Plasticity

• Modelling of waves in polymer and metal bars
• Inertia effects in impact energy absorbing materials and components
• Impact loading of beams, plates and shells/tubes/pipes
• Structural shock waves - dynamic crushing of cellular materials/structures
• Mechanics of cellular materials - wood, polymeric/metallic foams and honeycombs

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Current Research

Split Hopkinson pressure bar testing of soft materials

Frequency-dependent and rate-dependent characterisation of materials

Impact response of cellular materials

Impact energy absorbing structural components

Signal processing using deconvolution techniques and the spectral finite element method

 

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Research Grants

1.Consultant (£120,000) on high strain rate equipment for Atomic Weapons Establishment, 2005-06.

2. Co-investigator on £284,892 EPSRC project (GR/R26542/01) "Cellular materials for impact energy absorption" rated "Tending to outstanding".

3. Co-investigator on £29,700 (+VAT) AWE sponsored project on the "Experimental derivation of Mechanical Threshold Strength coefficients".

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Teaching Responsibilities

EG3052: Signals and Systems

EG40GB: Signal Processing

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Publications

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