Modulus of rupture

Modulus of rupture
Modulus Mod"u*lus, n.; pl. {Moduli}. [L., a small measure. See {Module}, n.] (Math., Mech., & Physics) A quantity or coefficient, or constant, which expresses the measure of some specified force, property, or quality, as of elasticity, strength, efficiency, etc.; a parameter. [1913 Webster]

{Modulus of a machine}, a formula expressing the work which a given machine can perform under the conditions involved in its construction; the relation between the work done upon a machine by the moving power, and that yielded at the working points, either constantly, if its motion be uniform, or in the interval of time which it occupies in passing from any given velocity to the same velocity again, if its motion be variable; -- called also the efficiency of the machine. --Mosley. --Rankine.

{Modulus of a system of logarithms} (Math.), a number by which all the Napierian logarithms must be multiplied to obtain the logarithms in another system.

{Modulus of elasticity}. (a) The measure of the elastic force of any substance, expressed by the ratio of a stress on a given unit of the substance to the accompanying distortion, or strain. (b) An expression of the force (usually in terms of the height in feet or weight in pounds of a column of the same body) which would be necessary to elongate a prismatic body of a transverse section equal to a given unit, as a square inch or foot, to double, or to compress it to half, its original length, were that degree of elongation or compression possible, or within the limits of elasticity; -- called also {Young's modulus}.

{Modulus of rupture}, the measure of the force necessary to break a given substance across, as a beam, expressed by eighteen times the load which is required to break a bar of one inch square, supported flatwise at two points one foot apart, and loaded in the middle between the points of support. --Rankine. [1913 Webster]

The Collaborative International Dictionary of English. 2000.

Look at other dictionaries:

• Modulus of rupture — Rupture Rup ture (?; 135), n. [L. ruptura, fr. rumpere, ruptum to break: cf. F. rupture. See {Reave}, and cf. {Rout} a defeat.] 1. The act of breaking apart, or separating; the state of being broken asunder; as, the rupture of the skin; the… …   The Collaborative International Dictionary of English

• Modulus of rupture — Modulus of rupture. См. Условный предел прочности. (Источник: «Металлы и сплавы. Справочник.» Под редакцией Ю.П. Солнцева; НПО Профессионал , НПО Мир и семья ; Санкт Петербург, 2003 г.) …   Словарь металлургических терминов

• modulus of rupture — an ultimate strength pertaining to the failure of beams by flexure equal to the bending moment at rupture divided by the section modulus of the beam …   Useful english dictionary

• modulus of rupture — breaking strength in a nonductile solid as measured by bending …   Mechanics glossary

• Rupture — Rup ture (?; 135), n. [L. ruptura, fr. rumpere, ruptum to break: cf. F. rupture. See {Reave}, and cf. {Rout} a defeat.] 1. The act of breaking apart, or separating; the state of being broken asunder; as, the rupture of the skin; the rupture of a… …   The Collaborative International Dictionary of English

• Modulus — Mod u*lus, n.; pl. {Moduli}. [L., a small measure. See {Module}, n.] (Math., Mech., & Physics) A quantity or coefficient, or constant, which expresses the measure of some specified force, property, or quality, as of elasticity, strength,… …   The Collaborative International Dictionary of English

• Modulus of a machine — Modulus Mod u*lus, n.; pl. {Moduli}. [L., a small measure. See {Module}, n.] (Math., Mech., & Physics) A quantity or coefficient, or constant, which expresses the measure of some specified force, property, or quality, as of elasticity, strength,… …   The Collaborative International Dictionary of English

• Modulus of a system of logarithms — Modulus Mod u*lus, n.; pl. {Moduli}. [L., a small measure. See {Module}, n.] (Math., Mech., & Physics) A quantity or coefficient, or constant, which expresses the measure of some specified force, property, or quality, as of elasticity, strength,… …   The Collaborative International Dictionary of English

• Modulus of elasticity — Modulus Mod u*lus, n.; pl. {Moduli}. [L., a small measure. See {Module}, n.] (Math., Mech., & Physics) A quantity or coefficient, or constant, which expresses the measure of some specified force, property, or quality, as of elasticity, strength,… …   The Collaborative International Dictionary of English

• modulus — of elasticity modulus of rupture E modulus section modulus shear modulus …   Mechanics glossary