Results 181 to 190 of about 17,977 (211)

Effect of Uncertainty in the Hygrothermal Properties on Hygrothermal Modeling

2020
Building envelopes are subject to the transient climate conditions. Moisture transfer which is coupled with heat transfer is an important issue in the field of building science. The moisture transfer and accumulation within building envelopes can lead to poor thermal performance, metal corrosion, wood decay, structure deterioration, microbial and mold ...
Xiangwei Liu, Ying Liu, Xingguo Guo, Na Luo, Guojie Chen   +4 more
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Hygrothermal Simulation Tools

2012
Different models for the coupled heat, air, moisture and salt transport have been developed and incorporated into various software programs used in the field of porous building materials and in the closely related field of wetting and drying of soils.
João M. P. Q. Delgado, Eva Barreira, Nuno M. M. Ramos, Vasco Peixoto de Freitas   +3 more
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Indoor Hygrothermal Conditions

2015
The evaluation of indoor hygrothermal conditions is described, supported by a literature review. Involved parameters and standardized methodologies are summarized. The procedures for evaluation of human comfort are also briefly described.
Nuno M. M. Ramos, João M. P. Q. Delgado, Ricardo M. S. F. Almeida, Maria L. Simões, Sofia Manuel   +4 more
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Hygrothermal Behavior

2001
Abstract Hygrothermal behavior of cured composite materials relates to the combined and commonly synergistic effects of moisture absorption and temperature on various physical, chemical and mechanical properties. This article focuses on the influence of resins or matrices, reinforcements, processing, and diffusion on hygrothermal ...
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Hygrothermal Material Properties Database

Defect and Diffusion Forum, 2015
The principles and tools for the development of a stochastic data base that can be useful for researchers and practitioners is an objective of this work. This paper explores the construction of that data base, focusing on material properties. Principles for that construction are proposed, including: selected properties, required raw data and ...
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Hygrothermal Initial Conditions - Case Studies

Applied Mechanics and Materials, 2016
In building simulations initial conditions express the actual hygrothermal state of building envelope. For the temperature field simulations initial condition is represented by the initial temperature in the body profile at the start of heat transfer. In-structure temperature varies quickly so temperature initial conditions are often neglected.
Marek Zozulák, Marián Vertaľ, Dušan Katunský   +2 more
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Hygrothermal Viscoelastic Response

2011
While the effects of moisture on the mechanical response of materials as different as wool and wood were recognized for a long time, their incorporation within the theory of viscoelasticity was not implemented until the 1970s.
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Hygrothermal Processes in Porous Materials

2023
The Thesis aims to assess the feasibility of creating a positive energy quarter in a cultural and historic urban environment by using hygrothermal insulation from the inside. The purpose of the research is to find the solution to the dilemma between preserving heritage and improving energy efficiency in historic buildings. One solution to this dilemma
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Durability of hygrothermally aged graphite/epoxy woven composite under combined hygrothermal conditions

International Journal of Fatigue, 2002
Abstract The objective of this study was to examine the effects of hygrothermal aging on the durability of a graphite/epoxy woven composite material system. The study was part of a larger project in which the objective was to evaluate and model the effects of moisture, temperature, and combined hygrothermal conditions on the strength and life of a ...
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Study of Hygrothermal Isotropic Layup and Hygrothermal Curvature-Stable Coupling Composite Laminates

44th AIAA/ASME/ASCE/AHS/ASC Structures, Structural Dynamics, and Materials Conference, 2003
The necessary and sufficient conditions for a laminate to be hygrothermal isotropic are given with the proof. A closed form of the direction-independent coefficient of thermal (or hygral) expansion for any hygrothermal isotropic laminate has been obtained.
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