Darya Ivanova M. Sc. and Lars Etscheid M. Sc.

Generation of a numerical simulation model for determining the sound insulation of vertical-core bricks

»1 Basic soundproofing performance of a single-leaf structural element [10]

»2 Simplified bending and thickness modes of masonry bricks [14]

Pictures/Bilder: authors/Autoren

»3 Comparison of test-stand data and calculations based
on identical area density m‘

Pictures/Bilder: authors/Autoren

»4 Conceptual diagram of the numerical simulation model

»5 Metrologically determined Young’s moduli in the directions x, y and z

»6 Numerical 2D simulation of a single-leaf structural element as function of bulk density ρ

»7 Numerical 2D simulation of a finely perforated vertical-core brick as function of body material bulk density ρ

»8 Numerical 2D simulations of a finely perforated vertical-core brick as function of internal material damping η_int of body material

»9 Numerical 2D simulations of finely perforated vertical-core brick as function of Young’s modulus E_dyn of body material

»10 Numerical 2D simulation of a coarsely perforated vertical-core brick as function of Young’s modulus E_dyn of body material

»11 Numerical 2D simulation of a finely perforated vertical-core brick

»12 Numerical 2D simulation of a coarsely perforated vertical-core brick

A numerical model for determining the sound transmission of vertical-core bricks is described. The effects of different material parameters on the numerically calculated sound insulation of a partition wall made of vertical-core bricks were investigated by way of a basic simulation model. The results of the simulation show relatively good agreement between numerically calculated and metrologically determined sound reduction indices.

1 Introduction

Along with good thermal insulation, high-level sound insulation counts among the more important criteria for high-quality, sustainable building materials [1–3]. In field practice, the sound insulation of structural elements made of vertical-core bricks is usually evaluated on the basis of metrological test data. That, however, involves high expenditures of time and money, particularly for the development of new vertical-core brick models.

Highly performant simulation tools now belong to the general state-of-the-art repertoire in the field of research and development. Numerical...

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Issue 03/2022 Improved sound insulation for brick buildings

Generation of a numerical simulation model for determining the sound insulation of vertical-core bricks

1 Introduction

Related articles:

Numerical Simulations, Part 1 – Application of numerical simulations for investigation and improvement of the acoustic behaviour of vertically perforated bricks

Brick and Tile Industry publishes new brochure on sound insulation

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Hard shell, soft core – stuffed masonry bricks Part 1 – Progress and thermal insulation

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1 Introduction

ZI 5/2019

ZI 5/2019

Related articles:

Numerical Simulations, Part 1 – Application of numerical simulations for investigation and improvement of the acoustic behaviour of vertically perforated bricks

Brick and Tile Industry publishes new brochure on sound insulation

Sound insulation – the new DIN 4109

Hard shell, soft core – stuffed masonry bricks Part 1 – Progress and thermal insulation

Measurement and numerical analyses of the acoustic behaviour of individual vertically perforated bricks