elastic modulus

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elastic modulus

[i‚las·tik ′mäj·ə·ləs]
(mechanics)

modulus of elasticity

In an elastic material which has been subject to strain below its elastic limit, the ratio of the unit stress to the corresponding unit strain.
References in periodicals archive ?
The unstable fracture toughness [K.sup.S.sub.IC] and the elastic modules E of the concrete specimens could be calculated as follows:
The elastic module of RPC is 40~50 GPa according to different researchers' tests.
In the previous papers [11-13] a significant influence of material layer elastic modules on the behaviour of multilayer structures was determined.
It has been obtained that increasing the ratios of the layer material elastic modules [[xi].sub.2,1], the relative radial stresses of the inner layer of PC increase from zero to the maximum value, but in the outside layer they decrease (curves 1, 3 Fig.
Measuring time intervals between the echo signals reflected from the specimen face and bottom enables us to find local values of sonic velocities and elastic modules of the material under investigation.
Most of these specimen values of sonic velocities and elastic modules possess minimal differences with the corresponding values of pure epoxy.
Also it is seen from the results that the elastic modulus of the second infill interface has a higher influence as compared to the elastic modulus of the first infill interface but the influence of both the elastic modules is lower that the yield strength of the infill material.
1), [L.sub.k] the length of the contact line between the teeth flanks in contact ([L.sub.k] [approximately equal to] 0.55[m.sub.x]q), [[rho].sub.1] and [[rho].sub.2] the radii of curvature of the profiles in contact in normal section, [v.sub.1] and [v.sub.2] the Poisson coefficients for the material of the worm and of the wheel ([v.sub.1] = 0.30 for the steel worm and [v.sub.2] = 0.35 for the bronze worm), [E.sub.1] and [E.sub.2] the elastic modules of the worm and the wheel ([E.sub.1] = 2.1 X [10.sup.5] MPa for steel worm and [E.sub.2] = 0.883X[10.sup.5] MPa for the bronze CuSn12 wheel), [[sigma].sub.Ha] the admissible contact pressure of the wheel from the worm gear ([[sigma].sub.Ha] = 425 MPa).
"In general, we concluded that the relative effect of carbon nanotubes on the mechanical properties of the base material is higher for the materials with lower elastic modules," he added.
We receive the system of equations which was written in supposition that all the spheres have identical elastic modules.
In reality, elastic modules of materials E and [sigma] are different.