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The influence of the composite surface structure on its sound absortion

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hdl:2099.1/21465

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Perez de Amezaga Tomas, Javier
Tutor / directorGliscinska, Eulalia
Document typeMaster thesis (pre-Bologna period)
Date2013
Rights accessRestricted access - author's decision
All rights reserved. This work is protected by the corresponding intellectual and industrial property rights. Without prejudice to any existing legal exemptions, reproduction, distribution, public communication or transformation of this work are prohibited without permission of the copyright holder
Abstract
The main goal of the project is study how could the sound absorption properties of a material be improved changing the structure or shape of its surface. Additionally, more about environmentally friendly or "biocomposites" will be studied. Comparing their properties and prices with typical synthetic composites, in order to foresee their future in our market. This project is about the basic concepts of acoustics as proofing and absorption, with a specific focus on sound absorption. Morphological structures and the types of materials with better acoustic absorption will be studied, paying special attention to fiber composites. It will be giving basic notions about what composites are, what they are composed of, and the kinds that exist, especially those that are environmentally friendly, such as the composite formed by natural flax fibers and a biodegradable PLA matrix. Finally, an experimental process is executed, describing how to make a non-woven composite material, and how its surface affects its sound absorption properties.
SubjectsAbsorption of sound, Architectural acoustics, Composite materials -- Testing, Fiber-reinforced plastics, So -- Absorció, Acústica arquitectònica, Materials compostos -- Proves, Plàstics reforçats amb fibra
ProvenanceAquest document conté originàriament altre material i/o programari no inclòs en aquest lloc web
DegreeENGINYERIA DE MATERIALS (TITULACIÓ CONJUNTA AMB LA UB) (Pla 2003)
URIhttp://hdl.handle.net/2099.1/21465
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  • Escola Tècnica Superior d'Enginyeria Industrial de Barcelona - Enginyeria de Materials (Pla 2003) [348]
  • Programes de Mobilitat Internacional - Programes de mobilitat 'outgoing' (ETSEIB) [1.287]
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