PMID- 18200915 OWN - NLM STAT- MEDLINE DCOM- 20080215 LR - 20190923 IS - 0035-8665 (Print) IS - 0035-8665 (Linking) VI - 153 IP - 3 DP - 2007 Sep TI - Shaped charges and explosively formed penetrators: background for clinicians. PG - 184-7 AB - Shaped Charges (SC) have been used in High Explosive Anti-Tank (HEAT) munitions and the mining industry since World War II. An explosive is used to propel a liner material of low mass at speeds in excess of 5 times the speed of sound. The subsequent projectile is capable of penetrating the steel of armoured vehicles and inflicting significant injury to any enclosed personnel. Explosively Formed Penetrators (EFP) are a variant of a SC, using higher mass at lower speed to deliver their kinetic energy. The Iraq conflict has seen the use of Improvised Explosive Devices utilising EFP (IED-EFP) by insurgent groups attacking military vehicles. The major wounding mechanisms are from fragmentation and burns. This article is a brief overview of the history and science behind SC and EFP. FAU - Morrison, J J AU - Morrison JJ AD - E Squadron, 205 Scottish Field Hospital V, Claverhouse Training Centre, 8 Granton Square, Edinburgh. jonny_morrison@doctors.org.uk FAU - Mahoney, P F AU - Mahoney PF FAU - Hodgetts, T AU - Hodgetts T LA - eng PT - Journal Article PT - Review PL - England TA - J R Army Med Corps JT - Journal of the Royal Army Medical Corps JID - 7505627 RN - 0 (Explosive Agents) SB - IM MH - *Blast Injuries MH - *Explosive Agents MH - Humans MH - *Military Medicine MH - Military Personnel MH - United Kingdom MH - *Warfare MH - Weapons MH - *Wounds, Penetrating RF - 22 EDAT- 2008/01/19 09:00 MHDA- 2008/02/19 09:00 CRDT- 2008/01/19 09:00 PHST- 2008/01/19 09:00 [pubmed] PHST- 2008/02/19 09:00 [medline] PHST- 2008/01/19 09:00 [entrez] AID - 10.1136/jramc-153-03-11 [doi] PST - ppublish SO - J R Army Med Corps. 2007 Sep;153(3):184-7. doi: 10.1136/jramc-153-03-11.