modulus : Idioms & Phrases

noun the ratio of the change in pressure acting on a volume to the fractional change in volume

noun (physics) the ratio of the applied stress to the change in shape of an elastic body
elastic modulus; coefficient of elasticity.

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.

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

noun (physics) the ratio of the applied stress to the change in shape of an elastic body
elastic modulus; coefficient 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.

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.