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Materials 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).

Technology: general issues --- perforated panel --- absorber array --- low frequency absorption --- sound absorber --- cigarette butts --- sustainable material --- recycling --- variability analysis --- textile waste --- biopolymers --- sound absorption --- sustainable materials --- circular economy --- polyurethane foam --- thermal property --- phase change material --- flame retardant --- perforated plates with extended tubes --- porous materials --- periodic absorber --- wood plastic composite --- transmission loss --- radiation efficiency --- orthotropic panel --- wavenumber analysis --- molecular sieve pellets --- impedance tube --- sound transmission loss --- semi-active damping --- sandwich panel --- morphing structure --- compressible constrained layer damping --- composite materials --- anisotropic materials --- optimized absorption --- diffuse field --- graded properties --- agro-waste --- hygrothermal performances --- concrete --- noise --- acoustic properties --- sound-absorbing --- sound-reflecting --- n/a

Choose an application

• Reference Manager
• EndNote
• RefWorks (Direct export to RefWorks)

Materials 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).

Technology: general issues --- perforated panel --- absorber array --- low frequency absorption --- sound absorber --- cigarette butts --- sustainable material --- recycling --- variability analysis --- textile waste --- biopolymers --- sound absorption --- sustainable materials --- circular economy --- polyurethane foam --- thermal property --- phase change material --- flame retardant --- perforated plates with extended tubes --- porous materials --- periodic absorber --- wood plastic composite --- transmission loss --- radiation efficiency --- orthotropic panel --- wavenumber analysis --- molecular sieve pellets --- impedance tube --- sound transmission loss --- semi-active damping --- sandwich panel --- morphing structure --- compressible constrained layer damping --- composite materials --- anisotropic materials --- optimized absorption --- diffuse field --- graded properties --- agro-waste --- hygrothermal performances --- concrete --- noise --- acoustic properties --- sound-absorbing --- sound-reflecting

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Corrugated and composite materials can significantly outperform traditional materials. Nowadays, such materials have gained more and more attention and application not only in theoretical, experimental or numerical scientific studies but also in daily industrial problems, which require innovative solutions. The specific geometry of a corrugated layer, or the combination of two or more materials in the structures allows the mechanical properties with specific features favorable for use in a specific engineering problem to be obtained. For example, due to the specific compositions of the corrugated materials, the ratio of the load capacity to the weight of the sections is much higher than that of traditional solid sections. Therefore, such materials should be used when the weight of the structure must be optimized or the structure must have openwork geometry. Among others, the composites can be employed for a variety of purposes, for example, in corrugated boards in the packaging industry; in soft-core sandwich panels, window frames in structural engineering; in wings in commercial, civilian and military aerospace applications; in the vehicle and its equipment devices, including, panels, frames or other interior components; in fans, grating, tanks, ducts and pumps in environmental installations; in electrical engineering in switchgear, motor controls, control system components or circuit breakers; and in many more. This Special Issue “Mechanics of Corrugated and Composite Materials” addresses selected knowledge gaps and aids advance in this area.

Technology: general issues --- History of engineering & technology --- corrugated board --- numerical homogenization --- strain energy equivalence --- finite element method --- plate stiffness properties --- shell structures --- transverse shear --- corrugated cardboard --- edge crush test --- orthotropic elasticity --- digital image correlation --- composites --- sandwich panel --- composite structural insulated panel --- magnesium oxide board --- bimodular material --- experimental mechanics --- computational mechanics --- finite element analysis --- perforation --- creasing --- flexural stiffness --- torsional stiffness --- sandwich panels --- local instability --- strain energy --- wrinkling --- orthotropic core --- box strength estimation --- packaging flaps --- crease line shifting --- compressive stiffness --- corrugated box --- compression strength --- pallet --- unit load --- unit load optimization --- composite sandwich structures --- thin-walled structures --- anisotropic material --- corrugated core --- homogenization approach --- first-order shear deformation theory --- FSDT --- FEM simulation --- design process --- aluminium-timber structures --- laminated veneer lumber (LVL) --- toothed plate --- screwed connection --- shear connection --- push-out test --- honeycomb panels --- starch --- impregnation --- climatic conditions --- strength --- stiffness --- energy absorption --- homogenization method --- lattice materials --- periodic cellular materials --- multiscale mechanics --- aluminium powder --- detonation --- explosive --- combustion --- oxidation --- equation of state --- localizing gradient damage --- gradient activity function --- tension --- concrete cracking --- impact load --- dynamics --- air operation safety --- flying risk --- risk management --- unmanned aerial vehicles