An Upper Bound of Longitudinal Elastic Modulus for Unidirectional Fibrous Composites as Obtained from Strength of Materials Approach

In this paper, the authors introduce an upper bound of the longitudinal elastic modulus of unidirectional fibrous composites to strength of materials approach, provided that the fibre is much stiffer than the matrix. In the mathematical derivations resulting in this bound, the concept of boundary in...

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Main Authors: John Venetis, Emilio Sideridis
Format: Article
Language:English
Published: MDPI AG 2018-08-01
Series:Fibers
Subjects:
Online Access:http://www.mdpi.com/2079-6439/6/3/57
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author John Venetis
Emilio Sideridis
author_facet John Venetis
Emilio Sideridis
author_sort John Venetis
collection DOAJ
description In this paper, the authors introduce an upper bound of the longitudinal elastic modulus of unidirectional fibrous composites to strength of materials approach, provided that the fibre is much stiffer than the matrix. In the mathematical derivations resulting in this bound, the concept of boundary interphase between filler and matrix was also taken into consideration. The novel element of this work is that the authors have not taken into account any particular variation law to approach the stiffness of this intermediate phase. The theoretical predictions were compared with those obtained from some accurate analytical models as well as with experimental data found in the literature, and a satisfactory accordance was observed.
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spelling doaj.art-c9b9f058f52d4569af574766134e05642022-12-22T04:28:15ZengMDPI AGFibers2079-64392018-08-01635710.3390/fib6030057fib6030057An Upper Bound of Longitudinal Elastic Modulus for Unidirectional Fibrous Composites as Obtained from Strength of Materials ApproachJohn Venetis0Emilio Sideridis1School of Applied Mathematics and Physical Sciences NTUA, Section of Mechanics, 5 Heroes of Polytechnion Avenue, GR-15773 Athens, GreeceSchool of Applied Mathematics and Physical Sciences NTUA, Section of Mechanics, 5 Heroes of Polytechnion Avenue, GR-15773 Athens, GreeceIn this paper, the authors introduce an upper bound of the longitudinal elastic modulus of unidirectional fibrous composites to strength of materials approach, provided that the fibre is much stiffer than the matrix. In the mathematical derivations resulting in this bound, the concept of boundary interphase between filler and matrix was also taken into consideration. The novel element of this work is that the authors have not taken into account any particular variation law to approach the stiffness of this intermediate phase. The theoretical predictions were compared with those obtained from some accurate analytical models as well as with experimental data found in the literature, and a satisfactory accordance was observed.http://www.mdpi.com/2079-6439/6/3/57fibrous compositeslongitudinal modulusupper boundstrength of materialsinterphase
spellingShingle John Venetis
Emilio Sideridis
An Upper Bound of Longitudinal Elastic Modulus for Unidirectional Fibrous Composites as Obtained from Strength of Materials Approach
Fibers
fibrous composites
longitudinal modulus
upper bound
strength of materials
interphase
title An Upper Bound of Longitudinal Elastic Modulus for Unidirectional Fibrous Composites as Obtained from Strength of Materials Approach
title_full An Upper Bound of Longitudinal Elastic Modulus for Unidirectional Fibrous Composites as Obtained from Strength of Materials Approach
title_fullStr An Upper Bound of Longitudinal Elastic Modulus for Unidirectional Fibrous Composites as Obtained from Strength of Materials Approach
title_full_unstemmed An Upper Bound of Longitudinal Elastic Modulus for Unidirectional Fibrous Composites as Obtained from Strength of Materials Approach
title_short An Upper Bound of Longitudinal Elastic Modulus for Unidirectional Fibrous Composites as Obtained from Strength of Materials Approach
title_sort upper bound of longitudinal elastic modulus for unidirectional fibrous composites as obtained from strength of materials approach
topic fibrous composites
longitudinal modulus
upper bound
strength of materials
interphase
url http://www.mdpi.com/2079-6439/6/3/57
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