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10 lines
728 B
Markdown
([[Context articles descriptions#Passive Constrained Layer Damping, SotA|source]])
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*Passive Constrained Layer Damping*
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[[Viscoelasticity|Viscoelastic materials (VEM)]] dissipate energy under a transient deformation. Used in a form of a layer that is either freely attached (UCLD ie *unconstrained layer damping*) or in a sandwich (CLD/PCLD ie *constrained layer damping/passive constrained layer damping*).
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In most of the analyses, extensional/compressional strains of the viscoelastic layer are not taken into account since the damping comes mostly from the shear strain. However, with a thick layer, compressional damping cannot be neglected.
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The mathematical models are either [[Finite element method|FE]] or analytical.
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