The human foot is spanned by an elastic band along its sole which is stretched when we put our weight on it and stores elastic energy
ready for release when the foot leaves the ground.
The idea that the accumulated elastic energy
in the resin under high pressure (tens of kbar) is released under shear deformation as a new surface is not in agreement with the actual conditions in an extruder.
Extending this concept, it is further assumed that an analogous distribution density will be followed by the strains evolved around PSTs, through which the appropriate amount of elastic energy
is offered for the PSTs' transition to a nonrecoverable state.
The load rises linearly to a maximum value, at which point a crack is initiated, propagates in an unstable manner, and travels rapidly through the specimen until the stored elastic energy
in the specimen is insufficient for further growth and the crack arrests.
This increase at high strains may be caused either directly, by an increase in elastic energy
, which could increase the amount of recoil, or indirectly, by a higher temperature increase of the material, which softens the material and could affect the elastic behavior as well.
Rather than picking up the foot as one long lever, the gibbon would lift its heel first, effectively bending the foot in two to form an upward-turned arch, stretching the toes' tendons even further and storing more elastic energy
ready for release as the foot eventually pushed off.
9) sufficient energy has to be supplied by the elastic energy
stored in the elastomeric network to cause crack growth.
the dissipated energy is irreversible and elastic energy
London, Oct 27 (ANI): A new study has found that Ostriches-the fastest bird on the land-use tendons to store and return twice as much elastic energy
per step than humans.
At slower deformation rates, more energy will be dissipated by the dashpot and less elastic energy
will be stored, thus resulting in reduced elastic recovery.
Nevertheless, the elastic energy
densities were close as a result of different fractions of dissipated energy.
The parasite can stretch forward while still attaching with its rear end - thus building up elastic energy