LEADER 04259nam 2200853z- 450 001 9910557370903321 005 20231214132935.0 035 $a(CKB)5400000000042182 035 $a(oapen)https://directory.doabooks.org/handle/20.500.12854/76963 035 $a(EXLCZ)995400000000042182 100 $a20202201d2021 |y 0 101 0 $aeng 135 $aurmn|---annan 181 $ctxt$2rdacontent 182 $cc$2rdamedia 183 $acr$2rdacarrier 200 10$aInnovative Composite Materials for Sound Absorption and Insulation 210 $aBasel, Switzerland$cMDPI - Multidisciplinary Digital Publishing Institute$d2021 215 $a1 electronic resource (188 p.) 311 $a3-0365-2381-2 311 $a3-0365-2380-4 330 $aMaterials with sound-absorbing or sound-insulating properties have been rapidly evolving in recent years for several reasons. On one side, there is the ever-increasing awareness of the adverse effects that noise and lack of acoustic comfort may have on human health. On the other, the availability of more sophisticated fabrication techniques, calculation methods, and new materials, has stimulated researchers and, more and more frequently, industry to develop customized materials with improved properties.This book collects contributions from different researchers covering several topics. A group of papers investigated the use of 3D printing to obtain perforated panels with extended frequency response, as well as to ideally design an optimized cell distribution to print (when fabrication techniques will make it possible) a porous material with a broader sound absorption. The role of the geometrical and microstructural properties of granular molecular sieves is investigated by another paper. A second group of papers focused its attention on the use of natural or recycled components to create a skeleton of porous materials with good sound-absorbing properties and low environmental impact. Cigarette butts, recycled textile waste, and almond skins have been investigated by different authors.Finally, the last batch of papers included a review of sound insulation properties of innovative concretes and two research papers focussing on a numerical and experimental analysis of wood plastic composite (WPC) panels and on the potential of semi-active solutions employing compressible constrained layer damping (CCLD). 606 $aTechnology: general issues$2bicssc 610 $aperforated panel 610 $aabsorber array 610 $alow frequency absorption 610 $asound absorber 610 $acigarette butts 610 $asustainable material 610 $arecycling 610 $avariability analysis 610 $atextile waste 610 $abiopolymers 610 $asound absorption 610 $asustainable materials 610 $acircular economy 610 $apolyurethane foam 610 $athermal property 610 $aphase change material 610 $aflame retardant 610 $aperforated plates with extended tubes 610 $aporous materials 610 $aperiodic absorber 610 $awood plastic composite 610 $atransmission loss 610 $aradiation efficiency 610 $aorthotropic panel 610 $awavenumber analysis 610 $amolecular sieve pellets 610 $aimpedance tube 610 $asound transmission loss 610 $asemi-active damping 610 $asandwich panel 610 $amorphing structure 610 $acompressible constrained layer damping 610 $acomposite materials 610 $aanisotropic materials 610 $aoptimized absorption 610 $adiffuse field 610 $agraded properties 610 $aagro-waste 610 $ahygrothermal performances 610 $aconcrete 610 $anoise 610 $aacoustic properties 610 $asound-absorbing 610 $asound-reflecting 615 7$aTechnology: general issues 700 $aMartellotta$b Francesco$4edt$01295449 702 $aMartellotta$b Francesco$4oth 906 $aBOOK 912 $a9910557370903321 996 $aInnovative Composite Materials for Sound Absorption and Insulation$93023458 997 $aUNINA