Frangible

Frangible

A material is said to be frangible if through deformation it tends to break up into fragments, rather than deforming plastically and retaining its cohesion as a single object. A common cookie or cracker are examples of frangible materials, while fresh bread, which deforms elastically is "not" frangible.

Frangible structural components

A frangible light pole base is designed to break away when a vehicle strikes it. This lessens the risk of injury to occupants of the vehicle. Frangible supports are also used for Airport Approach Structures. [cite web |url=http://www.fhwa.dot.gov/interstate/memories.htm |title=A Lesson in Safety |author=Wright Aldridge |publisher=Federal Highway Administration]

Frangible bullets

A frangible bullet is one that is designed to disintegrate into tiny particles upon impact to minimize their penetration for reasons of range safety, to limit environmental impact, or to limit the danger behind the intended target. Examples are the Glaser Safety Slug and the breaching round.

Frangible bullets will disintegrate upon contact with a surface harder than the bullet itself. Frangible bullets are often used by shooters engaging in close quarter combat training to avoid ricochets; targets are placed on steel backing plates that serve to completely fragment the bullet. Frangible bullets are typically made of non-toxic metals, and are frequently used on "green" ranges and outdoor ranges where lead abatement is a concern. [cite web |url=http://www.policeandsecuritynews.com/janfeb01/frangibleammunition.htm |title=FRANGIBLE AND NONTOXIC AMMUNITION |author=Tony L. Jones |publisher=Police and Security News] [cite web |url=http://www.globalsecurity.org/military/systems/munitions/frangible.htm |title=Frangible Ammunition |publisher=GlobalSecurity.org]

References


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  • Frangible — Fran gi*ble, a. [Cf. F. frangible.] Capable of being broken; brittle; fragile; easily broken. [1913 Webster] …   The Collaborative International Dictionary of English

  • frangible — (del sup. lat. «frangibĭlis») adj. Que puede partirse en pedazos. * * * frangible. (Del lat. *frangibĭlis). adj. Capaz de quebrarse o partirse …   Enciclopedia Universal

  • frangible — early 15c., from M.Fr. frangible, from M.L. frangibilis, from L. frangere to break (see FRACTION (Cf. fraction)) …   Etymology dictionary

  • frangible — index nonsubstantial (not sturdy) Burton s Legal Thesaurus. William C. Burton. 2006 …   Law dictionary

  • frangible — *fragile, brittle, crisp, short, friable …   New Dictionary of Synonyms

  • frangible — (Del lat. *frangibĭlis). adj. Capaz de quebrarse o partirse …   Diccionario de la lengua española

  • frangible — [fran′jə bəl] adj. [ME < OFr < ML frangibilis < L frangere, BREAK] breakable; fragile SYN. FRAGILE frangibility n …   English World dictionary

  • Frangible — Zerbersten eines Frangible Geschosses bei einem Belastungstest Frangible ist eine Eigenschaft spezieller Projektile und bedeutet, dass diese Projektile so konstruiert sind, dass sie beim Auftreffen auf harte Ziele in sehr kleine Teile… …   Deutsch Wikipedia

  • frangible — /ˈfrændʒəbəl / (say franjuhbuhl) adjective 1. capable of being broken; breakable. 2. (of telegraph poles, etc.) designed to detach from a solid base at ground level upon the impact of a motor vehicle. –noun 3. a telegraph pole which is frangible …   Australian-English dictionary

  • frangible — frangibility, frangibleness, n. /fran jeuh beuhl/, adj. easily broken; breakable: Most frangible toys are not suitable for young children. [1375 1425; late ME < OF, deriv. of L frangere to BREAK; see IBLE] Syn. fragile, frail. * * * …   Universalium

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