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Details of Grant 

EPSRC Reference: GR/L32453/01
Title: FAST CRACK GROWTH IN AIRCRAFT AND AEROENGINE STRUCTURES
Principal Investigator: Nowell, Professor D
Other Investigators:
Petronic, Dr N Harding, Dr J Petrinic, Professor N
Researcher Co-Investigators:
Project Partners:
Rolls-Royce Plc
Department: Engineering Science
Organisation: University of Oxford
Scheme: Standard Research (Pre-FEC)
Starts: 01 February 1997 Ends: 31 January 2000 Value (£): 142,992
EPSRC Research Topic Classifications:
Materials Characterisation
EPSRC Industrial Sector Classifications:
Aerospace, Defence and Marine
Related Grants:
Panel History:  
Summary on Grant Application Form
The procedures to present catastrophic crack propagation in pressurised pipelines are inapplicable to the ribbed shells and panels found in airframes and aeroengines. Dynamic plasticity and dynamic fracture mechanics will be applied to provide a mathematical model based on an energy balance approach. The model will be supported by experimental observations. Fast crack growth will be initiated by impact at the edge of pre-notched pre-stressed aluminium alloy plain and ribbed panels. It will be recorded by ultra high speed photography while strain gauges will monitor the strain in the target. From a refined mathematical model embodying the experimental results, design guidelines will be suggested.
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Organisation Website: http://www.ox.ac.uk