Wyniki wyszukiwania dla: S.E. Rigby

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artykuł

Predicting the role of geotechnical parameters on the output from shallow buried explosives

S.D. Clarke, S.D. Fay, J.A. Warren, A. Tyas, więcej

International Journal of Impact Engineering > 2017 > 102 > C > 117-128

Experiments have been conducted to quantify the effect the geotechnical conditions surrounding a buried charge have on the resulting output. From the results obtained the critical importance of moisture content in governing the magnitude of impulse delivered is highlighted. This has led to the development of a first-order predictive model for the impulse delivered from a buried charge, based on bulk...

artykuł

Measuring spatial pressure distribution from explosives buried in dry Leighton Buzzard sand

S.E. Rigby, S.D. Fay, S.D. Clarke, A. Tyas, więcej

International Journal of Impact Engineering > 2016 > 96 > C > 89-104

Direct measurement of the intense loading produced by the detonation of a buried explosive is an extremely difficult task. Historically, high-fidelity measurement techniques have not been sufficiently robust to capture the extremely high pressures associated with such events, and researchers have relied on ‘global’ measurements such as the average loading acting over a particular area of interest...

artykuł

Effects of strain rate and moisture content on the behaviour of sand under one-dimensional compression

A.D. Barr, S.D. Clarke, M. Petkovski, A. Tyas, więcej

Experimental Mechanics > 2016 > 56 > 9 > 1625-1639

The influence of strain rate and moisture content on the behaviour of a quartz sand was assessed using high-pressure quasi-static (10⁻³ s⁻¹) and high-strain rate (10³ s⁻¹) experiments under uniaxial strain. Quasi-static compression to axial stresses of 800 MPa was carried out alongside split Hopkinson pressure bar (SHPB) experiments to 400 MPa, where in each case lateral deformation of the specimen...

artykuł

Displacement timer pins: An experimental method for measuring the dynamic deformation of explosively loaded plates

S.D. Fay, S.E. Rigby, A. Tyas, S.D. Clarke, więcej

International Journal of Impact Engineering > 2015 > 86 > Complete > 124-130

The measurement of dynamic deformation of an explosively loaded plate is an extremely onerous task. Existing techniques such as digital image correlation are expensive and the equipment may be damaged by explosively driven debris/ejecta, particularly if it is necessary to locate such equipment close to loaded elements which are likely to fail. A new, inexpensive and robust measurement technique for...

artykuł

Geotechnical causes for variations in output measured from shallow buried charges

S.D. Clarke, S.D. Fay, J.A. Warren, A. Tyas, więcej

International Journal of Impact Engineering > 2015 > 86 > Complete > 274-283

The role of the geotechnical conditions on the impulse delivered by a shallow buried charge has received much attention in recent times. As the importance of the soil in these events has become better understood, the control over the geotechnical conditions has improved. While previous work has investigated directly the role of geotechnical conditions on the magnitude of the impulse from a buried...

artykuł

Elastic–plastic response of plates subjected to cleared blast loads

S.E. Rigby, A. Tyas, T. Bennett

International Journal of Impact Engineering > 2014 > 66 > Complete > 37-47

A commonly used approach for the engineering analysis of structures subjected to explosive loads is to approximate the problem as an equivalent Single-Degree-of-Freedom (SDOF) system and to use elastic–plastic response spectra. Currently, the response spectra that exist in the literature do not take into account the fact that blast wave clearing will occur if the target is not part of a reflecting...

artykuł

Single-Degree-of-Freedom response of finite targets subjected to blast loading – The influence of clearing

S.E. Rigby, A. Tyas, T. Bennett

Engineering Structures > 2012 > 45 > Complete > 396-404

When evaluating the dynamic response of a structure subjected to a high explosive detonation, it is common to simplify both the target properties and the form of the blast pressure load – a standard approach is to model the target as an equivalent Single-Degree-of-Freedom (SDOF) system with the blast load idealised as a pulse which decays linearly with time. Whilst this method is suitable for cases...

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Wyniki wyszukiwania dla: S.E. Rigby

Predicting the role of geotechnical parameters on the output from shallow buried explosives

Measuring spatial pressure distribution from explosives buried in dry Leighton Buzzard sand

Effects of strain rate and moisture content on the behaviour of sand under one-dimensional compression

Displacement timer pins: An experimental method for measuring the dynamic deformation of explosively loaded plates

Geotechnical causes for variations in output measured from shallow buried charges

Elastic–plastic response of plates subjected to cleared blast loads

Single-Degree-of-Freedom response of finite targets subjected to blast loading – The influence of clearing

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INFONA - portal komunikacji naukowej

Wyniki wyszukiwania dla: S.E. Rigby

Predicting the role of geotechnical parameters on the output from shallow buried explosives

Measuring spatial pressure distribution from explosives buried in dry Leighton Buzzard sand

Effects of strain rate and moisture content on the behaviour of sand under one-dimensional compression

Displacement timer pins: An experimental method for measuring the dynamic deformation of explosively loaded plates

Geotechnical causes for variations in output measured from shallow buried charges

Elastic–plastic response of plates subjected to cleared blast loads

Single-Degree-of-Freedom response of finite targets subjected to blast loading – The influence of clearing

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