Design and construction of the UK plate impact facility

Bourne, N. K.; Rosenberg, Z.; Johnson, D.; Field, J. E.; Timbs, A E; Flaxman, R P

doi:10.1088/0957-0233/6/10/005

Cited by 83 publications

(35 citation statements)

References 20 publications

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“…A polished impact plate with Rockwell C hardness of 58.4 ± 0.7 was secured to the 25 mm plate and aligned to ensure an axially symmetric impact. The symmetric impact experiments were performed using the plate impact facility at the Cavendish Laboratory (Bourne et al, 1995), which consists of a 50 mm bore, 5-m-long light gas gun. In these experiments, the target specimens were aligned in a frame using copper wires to ensure coaxial, planar impact.…”

Section: Experimental Methodsmentioning

confidence: 99%

Shock induced void nucleation during Taylor impact

et al. 2005

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Taylor impact experiments in the classic and symmetric configurations were used to study the plastic deformation and void nucleation in Al-6082-T6 rods. Deformation histories during impact were recorded using high-speed photography. X-ray computed tomography was used to visualize the extent of damage in recovered specimens. Above threshold velocities, void nucleation was observed along the central axis of the specimens, and reconstructed images from the tomography provide a 3-D mapping of the damaged region. The use of X-ray tomography is the first step in developing a method to characterise the damage process during impact using in-situ flash X-rays, which is also attempted in this study. Finite element simulations of these experiments are in good agreement with the experimental measurements, and confirm that void nucleation is due to the coalescence of lateral release waves at the centre of the specimen. The simulations also revealed that the time to failure is velocity dependent, and that the threshold velocity for void nucleation is sensitive to the properties and geometry of the target.

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Section: Experimental Methodsmentioning

confidence: 99%

Shock induced void nucleation during Taylor impact

et al. 2005

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“…One advantage of such studies is that many instrumental techniques can be applied to the system, such techniques and detail may be difficult or even impossible to use at full scale. Previous work from the Cavendish, using a 50 mm bore single stage light gas gun [6], has concentrated on rod / plate interaction at fixed angles of 45˚ or 60˚ [7]. This paper extends this research and describes the use of various highspeed diagnostic techniques [8,9] for rod / plate impacts with particular emphasis on the effects of pitch.…”

Section: Introductionmentioning

confidence: 84%

Scaled long rod perforation experiments using multiple diagnostics: Mild steel against rolled homogeneous armour

Cross¹,

Proud²

2012

AIP Conference Proceedings

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Abstract.A series of angled small-scale reverse ballistic long rod experiments were conducted using mild steel rods (6 mm dia., 90 mm long) against both 3 mm and 6 mm rolled homogeneous armour (RHA) plates at 60 o . The impact velocity was varied from 450-780 m s -1 and the response of the system monitored by laser velocimetry, strain gauges and high-speed photography. This provided insight into the flexing of the rod during impact, the acceleration of the rear of the rod and the global penetration process. This experimental series involved ricochet, near-ricochet and full perforation, and so allows the sensitivity of the differing diagnostic outputs for these processes to be compared.

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“…All shots were performed on 50 mm bore, 5 m long [5][6] and 70 mm bore, 3 m long single stage gas launchers. Two sets of experiments were performed.…”

Section: Methodsmentioning

confidence: 99%