The human Achilles tendon (AT) has often been considered to act as a single elastic structure in series with the muscles of the triceps surae. As such it has been commonly modelled as a Hookean spring of uniform stiffness. However, the free AT and the proximal AT have distinctly different structures that lend themselves to different elastic properties. This study aimed to use three-dimensional ...

THE elastic and mechanical properties of dentin were studied as early as 1895 by Black' who measured the compressive strengths of cubes of dentin and reported that a cube, 0.08 inch square, had an average compressive strength of 37,200 psi and an elastic deformation of 2.09 per cent when subjected to a load of 100 pounds (elastic modulus 0.8 x106 psi). Peyton, Mahler, and Hershenov2 reported av...

the main purpose of cementing of the well is to provide effective zonal isolation for the entire life of wells. the standard cements cannot prevent loss of zonal isolation when the stress level in the well cement is severely fluctuated. since elastic cements improve elastic properties, recently, a number of studies have been done in this area. for this purpose, a nanoparticle, named ex-ripi, wa...

In this paper, an elastic metamaterial with multiple dissipative resonators is presented for broadband wave mitigation by properly utilizing interactions from resonant motions and viscoelastic effects of the constitutive material. The working mechanism of the metamaterial to suppress broadband waves is clearly revealed in a dissipative mass-in-mass lattice system through both negative effective...

White matter is composed primarily of myelinated axons which form fibrous, organized structures and can act as waveguides for the anisotropic propagation of sound. The evaluation of their elastic properties requires both knowledge of the orientation of these waveguides in space, as well as knowledge of the waves propagating along and through them. Here, we present waveguide elastography for the...

Novel analytical solutions with closed-form expressions for the stress and displacement fields of short fiber reinforced composites (SFRCs) prediction their effective thermo-elastic properties are presented. The cylindrical SFRC unit-cells periodic boundary conditions subjected to axial transverse stresses as well thermally induced residual stresses. By comparison available numerical solutions,...