Browsing by Author "Ghachi R.F."
Now showing items 1-4 of 4
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Experimental study of the attenuation properties of metal-viscoelastic bi-layered materials
Ghachi R.F.; Alnahhal W.I. ( Institute of Physics Publishing , 2018 , Conference Paper)Phononic crystals (PCs) are multi-layered materials with functional elastic wave band gaps where propagation of vibration within these band gaps is restricted. PCs have vibration attenuation properties dependent on their ... -
Hybrid Split Hopkinson Pressure Bar to Identify Impulse-dependent Wave Characteristics of Viscoelastic Phononic Crystals
Haque, A.; Ghachi, R. F.; Alnahhal, W. I.; Aref, A.; Shim, J. ( Springer New York LLC , 2019 , Article)There has recently been a rising interest in the nonlinear wave transmission behavior of phononic crystals. However, experimental studies focusing on the nonlinear wave transmission behavior of phononic crystals have been ... -
Numerical study of the attenuation properties of viscoelastic metamaterials
Ghachi R.F.; Alnahhal W.I. ( Institute of Physics Publishing , 2018 , Conference Paper)Metamaterials (MMs) are materials engineered to have a property that is not found in nature. In this study, one-dimensional MMs is investigated, particularly that with a functional elastic wave band gaps where propagation ... -
Sagittal plane waves in infinitely periodic multilayered composites composed of alternating viscoelastic and elastic solids
Tahidul Haque A.B.M.; Ghachi R.F.; Alnahhal W.I.; Aref A.; Shim J. ( American Society of Mechanical Engineers (ASME) , 2018 , Article)In order to design phononic crystals whose band-gaps are located in low-frequency ranges, researchers commonly adopt low stiffness polymeric materials as key constituents and exploit the high impedance mismatch between ...