Modeling environmental ageing in masonry strengthened with composites

Miranda, Stefano de; Castellazzi, Giovanni

doi:10.1016/j.engstruct.2019.109773

Cited by 7 publications

(6 citation statements)

References 53 publications

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“…Commencing with Sykora et al [289], who delved into fully coupled transient heat and moisture transport, subsequent works by Castel-lazzi et al [290,291] advanced the realm of hygrothermal modelling, emphasising salt crystallisation predictions and introducing a multi-scale analysis framework. This multiscale approach is a recurring theme, extending to the study of environmental aging in masonry strengthened with composites by De Miranda et al [292]. Grementieri et al [293] further applied multi-scale modelling to explore moisture migration in fibre-reinforced polymer (FRP) composite masonry, while their subsequent work [294] focused on salt transport during drying.…”

Section: Aging Models For Cement-based Materialsmentioning

confidence: 99%

Mechanisms of Component Degradation and Multi-Scale Strategies for Predicting Composite Durability: Present and Future Perspectives

Ferreira Rocha,

Fonseca Gonçalves,

dos Reis

et al. 2024

J. Compos. Sci.

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Composite materials, valued for their adaptability, face challenges associated with degradation over time. Characterising their durability through traditional experimental methods has shown limitations, highlighting the need for accelerated testing and computational modelling to reduce time and costs. This study presents an overview of the current landscape and future prospects of multi-scale modelling for predicting the long-term durability of composite materials under different environmental conditions. These models offer detailed insights into complex degradation phenomena, including hydrolytic, thermo-oxidative, and mechano-chemical processes. Recent research trends indicate a focus on hygromechanical models across various materials, with future directions aiming to explore less-studied environmental factors, integrate multiple stressors, investigate emerging materials, and advance computational techniques for improved predictive capabilities. The importance of the synergistic relationship between experimental testing and modelling is emphasised as essential for a comprehensive understanding of composite material behaviour in diverse environments. Ultimately, multi-scale modelling is seen as a vital contributor to accurate predictions of environmental effects on composite materials, offering valuable insights for sustainable development across industries.

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Section: Aging Models For Cement-based Materialsmentioning

confidence: 99%

Mechanisms of Component Degradation and Multi-Scale Strategies for Predicting Composite Durability: Present and Future Perspectives

Ferreira Rocha,

Fonseca Gonçalves,

dos Reis

et al. 2024

J. Compos. Sci.

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“…In particular, the authors employed a two-dimensional discrete coupled hygro-mechanical model to assess the influence of the moisture field on the structural response as well as to incorporate the effect of mechanical degradation on the moisture transport process. In line with the hygro-mechanical studies, research on salt transport and crystallization in porous materials has received more attention in recent years, e.g., [25][26][27][28][29][30][31]. The proposed models have been proved able to predict the transport of salts and subsequent crystallization under different environmental scenarios.…”

Section: Introductionmentioning

confidence: 98%

Hygro-Thermo-Mechanical Analysis of Brick Masonry Walls Subjected to Environmental Actions

et al. 2023

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Masonry walls comprise an important part of the building envelope and, thus, are exposed to environmental effects such as temperature and moisture variations. However, structural assessment usually neglects the influence of these hygro-thermal loads and assumes ideal conditions. This paper presents a hygro-thermo-mechanical model and its application to simulate the impact of temperature- and moisture-related phenomena on the structural behavior of masonry walls. A fully coupled heat and mass transfer model is presented and a 2D finite element model is prepared to simulate the behavior of a brick masonry wall under various hygro-thermal scenarios. Two different mortars are considered: namely, cement mortar and natural hydraulic lime mortar. The results are evaluated in terms of temperature and moisture content distribution across the wall thickness. The hygro-thermal model is further extended to incorporate mechanical effects through the total strain additive decomposition principle. It is shown that the hygro-thermo-mechanical response of the brick masonry wall is a complex 2D phenomenon. Moreover, the environmental loads change the natural stress distribution caused by gravitational loads alone. Finally, the wall with cement mortar develops higher levels of stress when compared to the one with lime mortar, due to the dissimilar hygro-thermal behavior between the constituent materials.

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“…This also applies to the case of layered porous materials, which may be found in both the building (e.g. masonry strengthened with composites [1]) and artistic (e.g. glazed earthenware [2]) fields.…”

Section: Introductionmentioning

confidence: 99%

“…On the other hand, no modelling approach has been specifically addressed to the analysis of layered porous materials. The only exception could be represented by the research carried out in [1], where a multiphase model has been used for modelling environmental ageing in masonry strengthened with composites. In this contribution, the modelling of salt crystallization-induced damage in layered porous materials is addressed through the staggered multiphysics framework proposed in [9].…”

Section: Introductionmentioning

confidence: 99%

On the Modelling of Salt Crystallization-Induced Damage in Layered Porous Materials

Castellazzi

D’Altri

Miranda

et al. 2022

KEM

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In this contribution, the modelling of salt crystallization-induced damage in layered porous materials (such as masonry strengthened with composites, glazed earthenware, etc.) is addressed through a staggered multiphysics method. A staggered interchange of data is pursued between a multiphase model (crystallization pressure) and a macro-scale nonlinear mechanical model (material damage). Such method is preliminary applied to layered porous materials through a simple benchmark. Accordingly, the effects of layers with different properties on the crystallized salt distribution and damage pattern are highlighted.

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Modeling environmental ageing in masonry strengthened with composites

Cited by 7 publications

References 53 publications

Mechanisms of Component Degradation and Multi-Scale Strategies for Predicting Composite Durability: Present and Future Perspectives

Mechanisms of Component Degradation and Multi-Scale Strategies for Predicting Composite Durability: Present and Future Perspectives

Hygro-Thermo-Mechanical Analysis of Brick Masonry Walls Subjected to Environmental Actions

On the Modelling of Salt Crystallization-Induced Damage in Layered Porous Materials

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