Currently, the main challenges in the building industry are characterized by the maximal tendency to design and manufacture materials and elements aimed at enhancing the energy efficiency, comfort, and safety of structures. In this framework, hollow bricks have found widespread use in the construction and architectural sectors due to their versatility and enhanced lightweight, durability, and thermo-acoustic insulation properties. The mechanical, acoustic, and thermal performance of a brick can be modulated by optimizing the geometry of the internal cavity system. However, the research on functional configurations for bricks is very limited due to the restricted architectural freedom offered by traditional manufacturing techniques. The development of innovative manufacturing methods, such as 3D printing, implies considerable advantages in terms of design flexibility, allowing to prototype building units with highly complex configurations. Furthermore, to investigate the behavior of hollow bricks and perform topological optimization studies, Finite Element Method (FEM) analysis represents an advanced tool for predicting the response of a model to various type of stresses, verifying the performance and any vulnerabilities before manufacturing. In this work, innovative inner architectures based on hexagonal and fractal cavities are proposed to design novel multi-holed blocks made up of “sustainable” rubber-cement mortars. These multi-holed designs are unusual in brick technology, but their functionality (vibro-acoustic damping, strain capacity improving, heat insulation) was demonstrated in other engineering applications. To preliminary assess the influence of optimized cavity shapes on the brick’s properties, three FEM-based numerical models (mechanical, thermal, and acoustic simulations) were developed and calibrated in COMSOL Multiphysics. The output data allowed a performance analysis of the modeled bricks in terms of stress distribution, mechanical strength, thermal resistance, and sound absorption.

Novel hollow bricks designs as possible applications for rubber-cement mortars: preiminary mechanical, thermal, and acoustic analysis by finite element method (FEM) / Sambucci, Matteo; Sibai, Abbas; Valente, Marco. - (2021). ((Intervento presentato al convegno XVI Convegno nazionale AIMAT 2021 tenutosi a Cagliari.

Novel hollow bricks designs as possible applications for rubber-cement mortars: preiminary mechanical, thermal, and acoustic analysis by finite element method (FEM)

Matteo Sambucci
;
Abbas Sibai;Marco Valente
2021

Abstract

Currently, the main challenges in the building industry are characterized by the maximal tendency to design and manufacture materials and elements aimed at enhancing the energy efficiency, comfort, and safety of structures. In this framework, hollow bricks have found widespread use in the construction and architectural sectors due to their versatility and enhanced lightweight, durability, and thermo-acoustic insulation properties. The mechanical, acoustic, and thermal performance of a brick can be modulated by optimizing the geometry of the internal cavity system. However, the research on functional configurations for bricks is very limited due to the restricted architectural freedom offered by traditional manufacturing techniques. The development of innovative manufacturing methods, such as 3D printing, implies considerable advantages in terms of design flexibility, allowing to prototype building units with highly complex configurations. Furthermore, to investigate the behavior of hollow bricks and perform topological optimization studies, Finite Element Method (FEM) analysis represents an advanced tool for predicting the response of a model to various type of stresses, verifying the performance and any vulnerabilities before manufacturing. In this work, innovative inner architectures based on hexagonal and fractal cavities are proposed to design novel multi-holed blocks made up of “sustainable” rubber-cement mortars. These multi-holed designs are unusual in brick technology, but their functionality (vibro-acoustic damping, strain capacity improving, heat insulation) was demonstrated in other engineering applications. To preliminary assess the influence of optimized cavity shapes on the brick’s properties, three FEM-based numerical models (mechanical, thermal, and acoustic simulations) were developed and calibrated in COMSOL Multiphysics. The output data allowed a performance analysis of the modeled bricks in terms of stress distribution, mechanical strength, thermal resistance, and sound absorption.
File allegati a questo prodotto
Non ci sono file associati a questo prodotto.

I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.

Utilizza questo identificativo per citare o creare un link a questo documento: http://hdl.handle.net/11573/1592774
 Attenzione

Attenzione! I dati visualizzati non sono stati sottoposti a validazione da parte dell'ateneo

Citazioni
  • ???jsp.display-item.citation.pmc??? ND
  • Scopus ND
  • ???jsp.display-item.citation.isi??? ND
social impact