الفهرس 
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Abstract
Recently, auxetic structures with different designs are proposed as effective isolators having lightweight with high strength and flexibility. These structures are not yet commonly used and still their dynamic characteristics are under investigation.
In the present work, theoretical and experimental evaluations of the
dynamic parameters of the re-entrant auxetic steel structure design are
carried out.
The ANSYS finite element software package has been used to evaluate the
structure stiffness, its modulus of elasticity and the created stresses within its links. The effects of the different structure parameters such as width, length and height of the sample are studied. In addition, the effects of the links length, height and inclination angle for four different samples on the structure stiffness; natural frequency and damping ratio are investigated experimentally using a simple constructed test rig. Transmissibility of the tested samples as isolators versus frequency ratio is reported. All results are presented in the form of parametric curve fitted equations to help designers in proper selection of the re-entrant auxetic isolator design parameters.