bulk modulus


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Related to bulk modulus: Poisson's ratio, Young's modulus, Shear modulus

bulk modulus

n
(General Physics) a coefficient of elasticity of a substance equal to minus the ratio of the applied stress (p) to the resulting fractional change in volume (dV/V) in a specified reference state (dV/V is the bulk strain). Symbol: K
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Noun1.bulk modulus - the ratio of the change in pressure acting on a volume to the fractional change in volume
coefficient of elasticity, elastic modulus, modulus of elasticity - (physics) the ratio of the applied stress to the change in shape of an elastic body
References in periodicals archive ?
Assuming that the limonene K-value increased with increasing pressure in the same way as that of NR, it was possible to estimate the ratio of bulk modulus for PE and NR in the interval 0-200 MPa.
The over-weighting of c-axis may be a reason for the systematic over-estimation of bulk modulus as reported in (5).
Using the assumption of incompressibility of the matrix material yielded the relation between the effective bulk modulus, [K.
They found that the rubber bulk modulus has a significant effect on the hydrostatic stress inside rubber particles as well as plastic deformation in the ligament between the crack tip and rubber particle.
Although based on a limited amount of experimental data, it will be shown that a bulk modulus of the right order of magnitude can be arrived at, thus supporting the notion that the excess volume can be associated with a frozen-in, negative internal pressure.
The problem of calculating an effective shear or bulk modulus for an isotropic composite system, based on the pure isotropic component properties, reduces to estimating the average stress (or strain) in the particulate inclusion.
The contribution of the shear modulus to the longitudinal velocity is of a lower order of magnitude compared with that of bulk modulus (Eq 2).
0] is the bulk modulus of the STC (the resistance of the spacetime continuum to dilatations), and [epsilon] is the volume dilatation.
x] specific increase effect is related to the differences in physico-chemically characteristics (viscosity, density, bulk modulus of compressibility, bond structure, and cetane number), fuel injection timing and spray char acteristics, and engine operation condition, with major influences on the combustion process (Mazzoleni et al.
As discussed before, the Johnson--Allard model correlates the effective density and effective bulk modulus of the medium to the five macroscopic quantities described above (ll):
The computed bulk modulus of Al-tobermorite based on high-pressure experiments at beamline 12.
This predicts changes from one fluid to another by calculating the dry rock velocities and bulk modulus and then substitutes with a second fluid.