Technique for measuring damping properties of thin viscoelastic layers

Method to characterize the damping behavior of thin passively constrained layer laminates using dynamic mechanical analysis (DMA) in shear mode

“…Here, a beam or laminate strip is excited and oscillates at its resonance. Since CLD laminates with overall thicknesses below 50 µm exhibit very low stiffness and, therefore, also low resonant frequencies, this method would not be suitable to determine damping properties of these thin laminates over both a wide frequency and temperature range [17][18][19][20]. To overcome this drawback in this investigation, a forced frequency DMA setup was used.…”

Hybrid vibration control of a Two-Link Flexible manipulator

“…Grootenhuis [2] has discussed on how to damp the vibrations of structures using viscoelastic damping and also discusses, how to increase the efficacy of viscoelastic damping for both unconstrained and multilayer sandwich constructions. Jones et al [3] have proposed a method to measure the complex modulus properties of viscoelastic materials attached to thin metal sheets. They have verified their results using a resonance technique.…”

Loss Factor Peak of Viscoelastic Materials: Magnitude to Width Relations

“…The materials include three polyurethane samples [8], the damping materials GE. SMRD [24] and EAR C-1002 [25], two acrylic adhesives (3M ISD-112 [26] and 3M-467 [27]) used as damping tapes, a polyisobutylene [28] and two urethane}epoxy interpenetrating network (IPN) polymers [12] developed also for damping purposes. These data concern the loss properties in shear or elongation deformation, which are nearly identical for elastomers.…”