Extensive investigation of multiphysics approaches in simulation of complex periodic structures

Caniato, Marco; Bettarello, Federica; Bonfiglio, Paolo; Gasparella, Andrea

doi:10.1016/j.apacoust.2020.107356

Cited by 15 publications

(4 citation statements)

References 41 publications

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“…However, input material parameters for AAC assumed in the study were based on the average values found in the experimental campaign [ 44 ]. It was important to investigate the influence of the range of variation of these parameters (found in experimental studies reported in [ 15 ]) on the FE results. Table 5 presents the overview of models that were investigated.…”

Section: Finite Element Results and Discussionmentioning

confidence: 99%

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Finite Element Study on the Shear Capacity of Traditional Joints between Walls Made of AAC Masonry Units

2020

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This paper presents the development of a numerical model aimed at the simulation of nonlinear behaviour of traditional joints between walls made of autoclaved aerated concrete (AAC) masonry units. Nonlinear behaviour and cracking of AAC and mortar were simulated using the concrete damaged plasticity (CDP) model available in the ABAQUS finite element software. The paper also presents and discusses the results of an experimental campaign involving testing six T-shaped, monosymmetric samples with traditional joints between walls loaded in shear. The results were used to validate the numerical model. The validation confirmed that the model is capable of producing accurate results and predicting the structural behaviour with a reasonably good accuracy in elastic and post-elastic stages. Furthermore, a sensitivity study was conducted, in which the variation of elastic modulus, Poisson’s ratio, tensile strength, compression strength and fracture energy of AAC was investigated. Results showed that the variation of elastic modulus, tensile strength and fracture energy is most critical to the structural behaviour of the model, while variation of the remaining parameters has a negligible effect on the results.

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Section: Finite Element Results and Discussionmentioning

confidence: 99%

“…Different techniques such as the finite element method, discrete element method, applied element method and the transfer matrix modelling are used to solve engineering issues [ 15 , 16 ]. For the analysis of the behaviour of wall connections, being the subject of this paper, the finite element method (FEM) is used.…”

Section: Introductionmentioning

confidence: 99%

Finite Element Study on the Shear Capacity of Traditional Joints between Walls Made of AAC Masonry Units

2020

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“…Evaluating the acoustic characteristics of a building façade is of great importance in terms of design and other practical applications. The evaluations can be conducted either numerically 16 –36 or experimentally. 37 –63…”

Section: Studies On Sound Insulation Of Building Façadementioning

confidence: 99%

A critical review of acoustic modeling and research on building façade

Zayed

2021

Building Acoustics

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Noise pollution has been impacting negatively on living comfort and working environment for a long time. Acoustic treatment on building façade is one of the effective means to tackle this issue. Numerous articles were published over the past decades to address the acoustic related problems of building façade. However, a systematic review of the research development on façade acoustic technology is lacking. Therefore, this paper examines the published research articles from seven selected journals, in terms of the annual number of articles, citation counts, co-authorships, research locations, and keywords. The analyses show that interest in façade acoustics increased during the last two decades. Researchers from Europe and areas with a high density of tall buildings made significant contributions to this development. Based on keyword analysis, articles are categorized into three groups. These include sound insulation studies, studies on the effect of façade on street noise, and noise reduction techniques. The surveyed research topics comprise numerical modeling, experimental studies, ISO standard development, and analyses on annoyance level. Potential future directions are presented based on a summary of the limitations of the existing research. This paper offers researchers and engineers an in-depth understanding of the state-of-the-art of the current façade acoustic research. Additionally, potential future directions are identified based on the findings and limitations of the previous studies.

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“…Occupants' acoustic comfort is a very complex problem [18]. Indeed, many different aspects can influence the indoor sound field like façade [19][20][21] or wall sound insulation [22], impact noise reduction and thermo-hygrometric parameters [23].…”

Section: Introductionmentioning

confidence: 99%

Optimization of Controlled Mechanical Ventilation Systems for Indoor Acoustic Comfort

Granzotto¹

2021

Designs

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The indoor air quality inside living spaces is a fundamental factor in providing adequate comfort. In order to do this, a minimum air exchange must be ensured. This can be obtained by means of natural or mechanical ventilation or using the Controlled Mechanical Ventilation system (CMV). CMV ensures better energy performance, as in the winter period, the warm air that comes out of the building preheats the cold air that enters, and the opposite occurs in the summer period. A possible problem with CMV is the noise of the fans due to the movement of air and to the electric motor rotation. This work presents the results of acoustic measurements performed on an apartment equipped with CMV, operating in a single and simultaneous mode. Acoustic simulations are also presented using raytracing software on three typical apartments. The acoustic simulation carried out using an adequately calibrated 3D model has proved to be a valid support for the study of noise in rooms connected by doors and corridors. By differentiating the fan speed of the CMV, a considerable acoustic comfort improvement was obtained in the bedrooms and in the living room/kitchen. Class I for living rooms and class I or II for bedrooms according to the EN 16798-1 standard were achieved through speed optimization.

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Extensive investigation of multiphysics approaches in simulation of complex periodic structures

Cited by 15 publications

References 41 publications

Finite Element Study on the Shear Capacity of Traditional Joints between Walls Made of AAC Masonry Units

Finite Element Study on the Shear Capacity of Traditional Joints between Walls Made of AAC Masonry Units

A critical review of acoustic modeling and research on building façade

Optimization of Controlled Mechanical Ventilation Systems for Indoor Acoustic Comfort

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