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Fragmentation studies by non-explosive cylinder expansion technique (2020)
Journal Article
Wood, D., Rao, P., Painter, J., Appleby-Thomas, G., Critchley, R., Roberts, A., & Hazael, R. (2020). Fragmentation studies by non-explosive cylinder expansion technique. International Journal of Impact Engineering, 146, https://doi.org/10.1016/j.ijimpeng.2020.103714

Expansion and fragmentation of metallic cylinders is an important area of study both for designing munitions and mitigation techniques against fragments as well as in the failure of pressurised pipes in industry. Most of the reported studies on fragm... Read More about Fragmentation studies by non-explosive cylinder expansion technique.

Ballistic protective properties of material representative of English civil war buff-coats and clothing (2020)
Journal Article
May, B., Critchley, R., Carr, D., Peare, A., & Dowen, K. (2020). Ballistic protective properties of material representative of English civil war buff-coats and clothing. International Journal of Legal Medicine, 134, 1949–1956. https://doi.org/10.1007/s00414-020-02378-x

One type of clothing system used in the English Civil War, more common amongst cavalrymen than infantrymen, was the linen shirt, wool waistcoat and buff-coat. Ballistic testing was conducted to estimate the velocity at which 50% of 12-bore lead spher... Read More about Ballistic protective properties of material representative of English civil war buff-coats and clothing.

Experimental and numerical study of auxetic sandwich panels on 160 grams of PE4 blast loading (2020)
Journal Article
Arifurrahman, F., Critchley, R., & Horsfall, I. (in press). Experimental and numerical study of auxetic sandwich panels on 160 grams of PE4 blast loading. Journal of Sandwich Structures and Materials,

Mines, specifically as Anti-Tank (AT) mines are a significant threat for defence vehicles. While approaches such as v-shaped hulls are currently used to deflect the blast products from such threats, such a solution is not always usable when hull stan... Read More about Experimental and numerical study of auxetic sandwich panels on 160 grams of PE4 blast loading.

Ballistic research techniques: visualizing gunshot wounding patterns (2020)
Journal Article
Stevenson, T., Carr, D. J., Harrison, K., Critchley, R., Gibb, I. E., & Stapley, S. A. (2020). Ballistic research techniques: visualizing gunshot wounding patterns. International Journal of Legal Medicine, 134(3), 1103-1114. https://doi.org/10.1007/s00414-020-02265-5

There are difficulties associated with mapping gunshot wound (GSW) patterns within opaque models. Depending on the damage measurement parameters required, there are multiple techniques that can provide methods of “seeing” the GSW pattern within an op... Read More about Ballistic research techniques: visualizing gunshot wounding patterns.

The effect of breast size and bra type on comfort for UK female police officers wearing body armour (2019)
Journal Article
Knock, D. C., Critchley, D. R., Malbon, C., Knock, C., Critchley, R., & Debra J Carr, P. (2020). The effect of breast size and bra type on comfort for UK female police officers wearing body armour. Applied Ergonomics, 84, https://doi.org/10.1016/j.apergo.2019.103012

Within the Police service of England and Wales the wearing of ballistic and stab resistant body armour is common, with most police forces mandating its usage when away from the police station. Of all the serving police officers in England and Wales 2... Read More about The effect of breast size and bra type on comfort for UK female police officers wearing body armour.

The effects of crossbow impacts onto a common automotive vehicle side window—a preliminary study (2019)
Journal Article
Critchley, R., Standbridge, K., & Peare, A. (2020). The effects of crossbow impacts onto a common automotive vehicle side window—a preliminary study. International Journal of Legal Medicine, 134(4), 1395-1401. https://doi.org/10.1007/s00414-019-02171-5

In recent times, the number of criminal incidents involving crossbows in the UK has increased with many incidents resulting in either injuries or fatalities. Whilst the effects of crossbow bolts on the body are well understood, there is a limited und... Read More about The effects of crossbow impacts onto a common automotive vehicle side window—a preliminary study.

Experimental fragmentation of pipe bombs with varying case thickness (2019)
Journal Article
da Silva, L. A., Johnson, S., Critchley, R., Clements, J., Norris, K., & Stennett, C. (2020). Experimental fragmentation of pipe bombs with varying case thickness. Forensic Science International, 306, https://doi.org/10.1016/j.forsciint.2019.110034

Among all the improvised explosive devices (IEDs) known, pipe bombs are one of the most popular devices used by terrorists. They are simple to use, easy to construct and materials are readily available. For this IED, fragmentation is the primary inju... Read More about Experimental fragmentation of pipe bombs with varying case thickness.

Woven fabrics in book conservation: An investigation into the properties of aerolinen and aerocotton (2019)
Journal Article
Bockmuehl, C. R., Tomkins, N., Keiding, J., Critchley, R., Peare, A., & Carr, D. J. (2020). Woven fabrics in book conservation: An investigation into the properties of aerolinen and aerocotton. Studies in Conservation, 1-13. https://doi.org/10.1080/00393630.2019.1672442

Woven fabrics commonly referred to as ‘aerocotton’ and ‘aerolinen’ are frequently used in the conservation of books and manuscripts and are valued for their strength and flexibility. Although textiles have a long history in the production and repair... Read More about Woven fabrics in book conservation: An investigation into the properties of aerolinen and aerocotton.

Scaled simulation of the blast effects on structures using LEGO blocks: A pilot study (2018)
Journal Article
Critchley, R., Peare, A., & Sheldon, R. (in press). Scaled simulation of the blast effects on structures using LEGO blocks: A pilot study. Explosives Engineering, 26-28

Blast effects on structures is an important topic in this modern age for many practising engineers, including structural engineers designing buildings for safety or weapons engineers attempting to destroy enemy infrastructure. Due to the large costs,... Read More about Scaled simulation of the blast effects on structures using LEGO blocks: A pilot study.

Effects of salt water on the ballistic protective performance of bullet-resistant body armour (2018)
Journal Article
Dodd, S., Malbon, C., Critchley, R., Lankester, C., O’Rourke, S., Corke, T., & Carr, D. (2019). Effects of salt water on the ballistic protective performance of bullet-resistant body armour. Police Journal, 92(3), 264-273. https://doi.org/10.1177/0032258x18809905

Bullet-resistant body armour is used by law enforcement agencies and military personnel worldwide, often in inclement weather. Some fibre types used in body armour perform poorly when wet, resulting in a reduced level of protection; this is why most... Read More about Effects of salt water on the ballistic protective performance of bullet-resistant body armour.

The preparation and characterisation of auxetic foams for the application of trauma attenuating backings (2015)
Thesis
Critchley, R. The preparation and characterisation of auxetic foams for the application of trauma attenuating backings. (Thesis). University of Southampton. Retrieved from https://uwe-repository....ribe.com/output/6669968

Blunt body trauma, due to a heavy impact or blow, has the potential to cause catastrophic injury in a broad range of professions and workplace environments. At particular risk are those who work in areas such as the military, the engineering and cons... Read More about The preparation and characterisation of auxetic foams for the application of trauma attenuating backings.

The preparation of auxetic foams by three-dimensional printing and their characteristics (2013)
Journal Article
Wood, R. J., Critchley, R., Corni, I., Wharton, J. A., Walsh, F. C., Wood, R. J. K., & Stokes, K. R. (2013). The preparation of auxetic foams by three-dimensional printing and their characteristics. Advanced Engineering Materials, 15(10), 980-985. https://doi.org/10.1002/adem.201300030

Repeatable auxetic foams are produced using three‐dimensional printing technologies. This methodology is applied here for the first time to produce playable polymeric auxetic foams with an idealized re‐entrant cellular structure. During uniaxial tens... Read More about The preparation of auxetic foams by three-dimensional printing and their characteristics.

A review of the manufacture, mechanical properties and potential applications of auxetic foams (2013)
Journal Article
Wood, R. J., Critchley, R., Corni, I., Wharton, J. A., Walsh, F. C., Wood, R. J. K., & Stokes, K. R. (2013). A review of the manufacture, mechanical properties and potential applications of auxetic foams. physica status solidi (b), 250(10), 1963-1982. https://doi.org/10.1002/pssb.201248550

Auxetics are a modern class of material fabricated by altering the material microstructure. Unlike conventional materials, auxetics exhibit a negative Poisson's ratio when subjected to tensile loading. These materials have gained popularity within th... Read More about A review of the manufacture, mechanical properties and potential applications of auxetic foams.


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