Thermal Expansion Coefficients of Composite Materials Based on Energy Principles

Schapery, R. A.

doi:10.1177/002199836800200308

Cited by 1,062 publications

(366 citation statements)

References 12 publications

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“…This model completely accords with a linear correlation between the CTE of the components and volume fraction of each component [6]. Schapery [7] further developed the prediction model and studied bounds on effective CTE of composite materials made up of isotropic phases based onthermo-elastic principles. Upper and lower bounds can be obtained based on the Hashin-Shtrikman [8] model.…”

Section: Introductionmentioning

confidence: 67%

An Investigation of the Thermal Expansion Coefficient for Resin Concrete with ZrW2O8

et al. 2015

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This paper presents a novel resin concrete obtained by adding cubic zirconium tungstate (ZrW2O8) as filler. A prediction algorithm on the thermal expansion coefficient (CTE) of resin concrete (including filler) was established on the basis of the meso-mechanics method and a three-phase model for concrete. The concept of twice mixing was also proposed for prediction accuracy. Then, a 2D and 3D irregular polygon aggregate particles packing model was set up by Matlab and the properties of the packing model were simulated by finite element analysis. Finally, resin concrete samples were made and their CTE were measured. Mix proportion and addition of ZrW2O8 as influencing factors were considered in this experiment. The CTE of resin concrete was verified by comparing results of the prediction model, simulation model and experiment. The optimum CTE obtained from the experiment was 1.504 × 10 /K without ZrW2O8, it was found that the addition of ZrW2O8 to resin concrete can make it perform significantly better in thermal expansion.

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Section: Introductionmentioning

confidence: 67%

An Investigation of the Thermal Expansion Coefficient for Resin Concrete with ZrW2O8

et al. 2015

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“…Parameters ξ 1 and ξ 2 are the parameters of the model which reflect information of the geometry of the reinforcement and the degree of inhomogeneity in the composite material. Schaperys model An analytical model to calculate longitudinal and transverse coefficients of thermal expansion is Schaperys model [22]. Schapery's based his approach on an iso-strain behaviour of fibres and matrix.…”

Section: Comparison Of the Results With Analytical Modelsmentioning

confidence: 99%

Numerical Investigation of Thermal and Thermo-mechanical Effective Properties for Short Fibre Reinforced Composite

2016

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This study aims to investigate the thermal conductivity and the linear coefficient of thermal expansion for short fibre reinforced composites. The study combines numerical and statistical analyses in order to primarily examine the representative size and the effective properties of the volume element. Effects of various micromechanical parameters, such as fibre's aspect ratio and fibre's orientation, on the minimum representative size are discussed. The numerically acquired effective properties, obtained for the representative size, are presented and compared with analytical models.

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“…In a similar manner to the analysis of the composite and fibre modulus, the coefficient of thermal expansion of the composites determined by TMA can be used to establish the coefficient of thermal expansion of the fibre using micromechanical models. The longitudinal coefficient of thermal expansion of the fibre (α f1 ) can be obtained using a rearrangement of the well-established Schapery [23] equation:…”

Section: Composite and Fibre Thermal Expansionmentioning

confidence: 99%

Characterisation of the Anisotropic Thermoelastic Properties of Natural Fibres for Composite Reinforcement

Thomason

Yang

Gentles

2017

Fibers

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There has been a substantial increase in the investigation of the potential of natural fibres as a replacement reinforcement in the traditional fibre reinforced polymer composite application. However, many researchers often overlook the anisotropic properties of these fibres, and the estimation of the potential reinforcement performance. A full understanding of the thermoelastic anisotropy of natural fibres is important for realistically predicting their potential performance in composite applications. In this study, the thermoelastic properties of flax and sisal fibres were determined through a combination of experimental measurements and micromechanical modelling. The results confirm the high degree of anisotropy in properties of the flax and sisal fibres. The implications of these results on using natural fibres as an engineering composite reinforcement are discussed.

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Thermal Expansion Coefficients of Composite Materials Based on Energy Principles

Cited by 1,062 publications

References 12 publications

An Investigation of the Thermal Expansion Coefficient for Resin Concrete with ZrW2O8

An Investigation of the Thermal Expansion Coefficient for Resin Concrete with ZrW2O8

Numerical Investigation of Thermal and Thermo-mechanical Effective Properties for Short Fibre Reinforced Composite

Characterisation of the Anisotropic Thermoelastic Properties of Natural Fibres for Composite Reinforcement

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