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HSE OTI 92 603
Analysis of projectiles
Work Package BR5
BFETS Phase 1
A survey has been undertaken of the various mechanisms that may result in missiles being created by a incident in an offshore Module.
This includes rupture of vessels and missiles generated by the blast wind load.
A literature review has also been conducted with particular reference to projectiles weighing up to 5 kg impacting targets at velocities at up to 200 m/sec.
Experimental studies are surveyed relating primarily to turbine blade and other accidentally generated projectiles.
A number of empirical formulae have been developed, which can be used to give a reasonable estimate of the effect of projectiles against metallic or concrete targets.
Analytical modelling is discussed in relation to the impact of thin targets by blunt projectiles. Models were found to give good correlations with experimental tests.
Analytical and experimental studies show that projectile nose shape is important.
A numerical approach using finite difference or finite element computer codes is also reviewed.
The full report is publicly available from the HSE Website at www.hse.gov.uk/research/otipdf/oti92603.pdf.
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