Английская Википедия:Aggregate modulus

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In relation to biomechanics, the aggregate modulus (Ha) is a measurement of the stiffness of a material at equilibrium when fluid has ceased flowing through it.[1] The aggregate modulus can be calculated from Young's modulus (E) and the Poisson ratio (v).[1][2]

<math>

Ha=\frac{E(1-v)}{(1+v)(1-2v)} </math>

The aggregate modulus of a similar specimen is determined from a unidirectional deformational testing configuration, i.e., the only non-zero strain component is E11.[3] This configuration is opposed to the Young's modulus, which is determined from a unidirectional loading testing configuration, i.e., the only non-zero stress component is, say, in the e1 direction.[3] In this test, the only non-zero component of the stress tensor is T11.[3]

References

  1. 1,0 1,1 Mansour, J. M. (2003). Biomechanics of cartilage. Kinesiology: the mechanics and pathomechanics of human movement, 2, 66-79.
  2. Шаблон:Cite journal
  3. 3,0 3,1 3,2 Шаблон:Citation


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