Brisance

Brisance

Brisance is a measure of the rapidity with which an explosive develops its maximum pressure.

In addition to strength, explosive materials display a second characteristic, which is their shattering effect or brisance (from the French "briser", to break), which is distinguished from their total work capacity. This characteristic is of practical importance in determining the effectiveness of an explosion in fragmenting shells, bomb casings, grenades, structures, and the like. The rapidity with which an explosive reaches its peak pressure is a measure of its brisance. A brisant explosive is one in which the maximum pressure is attained so rapidly that a shock wave is formed, and the net effect is to shatter (by shock resonance) the material surrounding or in contact with the supersonic detonation wave created by this explosive. Thus brisance is a measure of the shattering ability of an explosive.

The sand crush test is commonly employed to determine the relative brisance in comparison to TNT. No single test is capable of directly comparing the explosive properties of two or more compounds;Fact|date=November 2007 it is important to examine the data from several such testsFact|date=November 2007 (sand crush, trauzl, and so forth) in order to gauge relative brisance. True values for comparison will require field experiments.Fact|date=November 2007

One of the most brisant conventional explosives is cyclotrimethylene trinitramine (also known as RDX). [cite book|title=TM 9-1300-214|publisher=US Army]

References

"Initial version taken from now-unavailable U.S. Military public domain resource at"

"https://www.advancement.cnet.navy.mil/products/web-pdf/tramans/bookchunks/14324_ch1.pdf"

ee also

*Relative effectiveness factor


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  • brisance — ● brisance nom féminin Propriété d un explosif qui le rend plus ou moins apte à rompre des corps résistants. brisance [bʀizɑ̃s] n. f. ÉTYM. Mil. XXe; de brisant, adj. ❖ ♦ Techn. Capacité d un explosif à fragmenter plus ou moins une masse donnée… …   Encyclopédie Universelle

  • brisance — ri sance n. the shattering or crushing effect of a sudden release of energy as in an explosion; used especially as a measure of such a shattering power, applied to high explosives. [WordNet 1.5 +PJC] …   The Collaborative International Dictionary of English

  • brisance — [bri zäns′] n. [Fr, lit., breaking, prp. of briser, to break < VL brisare] the shattering effect of the sudden release of energy, as in an explosion of nitroglycerin …   English World dictionary

  • Brisance — La brisance est l aptitude d un explosif à fragmenter une cible[1]. Elle est pratiquement proportionnelle à la rapidité avec laquelle un explosif développe sa pression maximale. La brisance mesure la capacité de destruction d un explosif. Le… …   Wikipédia en Français

  • brisance — noun /ˈbɹiːzɑ̃s/ The shattering effect of the energy released in an explosion. He thought he knew being aflame. But this was sustained explosion, reaching now and then a quite unendurable brisance. See Also: brisant …   Wiktionary

  • brisance — brisant /bri zahnt /; Fr. /brddee zahonn /, adj. /bri zahns /; Fr. /brddee zahonns /, n. the shattering effect of a high explosive. [1910 15; < F, equiv. to bris(er) to break ( < Celt; akin to Ir brisim (I) break) + ance ANCE] * * * …   Universalium

  • brisance — bri·sance …   English syllables

  • brisance — bri•sance [[t]brɪˈzɑns, ˈzɑ̃s, bri [/t]] n. the shattering effect of a high explosive • Etymology: 1910–15; < F, =bris(er) to break (< Celtic; akin to Ir brisim (I) break) + ance ance bri•sant′ ˈzɑnt, ˈzɑ̃ adj …   From formal English to slang

  • brisance — /ˈbrizəns/ (say breezuhns) noun the shattering power of high explosives. {French} …  

  • brisance — noun the shattering or crushing effect of a sudden release of energy as in an explosion • Derivationally related forms: ↑brisant • Hypernyms: ↑consequence, ↑effect, ↑outcome, ↑result, ↑event, ↑issue, ↑ …   Useful english dictionary

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