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Characterisation of the realistic impact threat from runway debris

Published online by Cambridge University Press:  04 July 2016

E. S. Greenhalgh ,
G. A. F. Chichester ,
A. Mew ,
M. Slade  and
R. Bowen
E. S. Greenhalgh
Affiliation:
Structures and Materials Centre, QinetiQ Farnborough, UK
G. A. F. Chichester
Affiliation:
Structures and Materials Centre, QinetiQ Farnborough, UK
A. Mew
Affiliation:
Structures and Materials Centre, QinetiQ Farnborough, UK
M. Slade
Affiliation:
Structures and Materials Centre, QinetiQ Farnborough, UK
R. Bowen
Affiliation:
NDE Centre, Department of Mechanical Engineering, University College, London
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Abstract

This paper describes a study to characterise the impact threat to aircraft from runway debris. This work investigated the likelihood of an event exceeding a critical impact energy; it did not address the probability of an event occurring. Runway debris was collected from six airfields and parameters such as size fraction, mass, density, bluntness and material type were characterised. The distribution of the stone mass against frequency was accurately modelled and based on this, an expression was developed for the probability of an impact exceeding a critical level during a single take-off or landing. By considering the probability of a 50J impact from runway debris as a once in a lifetime event, the implication is that the actual threat is significantly more than the currently perceived threat. This study provides the foundations for more comprehensive studies and will give the designers improved understanding of the threat to aircraft from runway debris.

Type
Research Article
Information
The Aeronautical Journal , Volume 105 , Issue 1052 , October 2001 , pp. 557 - 570
Copyright
Copyright © Royal Aeronautical Society 2001 

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