Application of the method of integral cross-sections for estimating the effective elastic properties of composite materials

1997 ◽  
Vol 70 (5) ◽  
pp. 805-813
Author(s):  
V. V. Novikov ◽  
O. B. Papkovskaya
Keyword(s):  
Composite Materials ◽  
Elastic Properties ◽  
Cross Sections ◽  
Effective Elastic Properties

ELASTIC PROPERTY PREDICTION OF THE STITCHED MULTI-AXIAL WARP KNIT FABRIC COMPOSITES

2006 ◽  
Vol 20 (25n27) ◽  
pp. 4022-4027 ◽  
Author(s):  
HEOUNG-JAE CHUN ◽  
HYUNG-WOO KIM ◽  
JOON-HYUNG BYUN
Keyword(s):  
Composite Materials ◽  
Elastic Properties ◽  
Cross Sections ◽  
Averaging Method ◽  
Geometric Parameters ◽  
Suggested Model ◽  
Fabric Composites ◽  
Out Of Plane ◽  
Experimental Values ◽  
Good Agreement

In order to improve the resistances to delamination, damage tolerance, some in-plane and out-of-plane properties of composite materials, a through-thickness reinforcement must be provided. This through-thickness reinforcement is achieved by stitching multi-axial warp knit (MWK) fabrics used as preforms for the fabrication of composite materials. The MWK fabrics are constructed with layers of insertion fiber bundles in the warp, weft and bias directions. In order to correlate the microstructure of a preform with the elastic properties of stitched MWK composite, the analytical model for stitched MKW composite is developed. The overall geometry and geometric parameters of a representative volume are determined from the photomicrographs of cross sections of the fabricated composite specimens. The various elastic properties of MWK fabric composites are predicted as functions of various geometric parameters using an averaging method. The experimental results are compared with the predicted results in order to validate the suggested model. It is found that the predicted elastic properties are in reasonably good agreement with the experimental values.

Different approaches for calculating the effective elastic properties in composite materials under imperfect contact adherence

2013 ◽  
Vol 99 ◽  
pp. 264-275 ◽  
Author(s):  
Reinaldo Rodríguez-Ramos ◽  
Ricardo de Medeiros ◽  
Raúl Guinovart-Díaz ◽  
Julián Bravo-Castillero ◽  
José Antonio Otero ◽  
...  
Keyword(s):  
Composite Materials ◽  
Elastic Properties ◽  
Imperfect Contact ◽  
Effective Elastic Properties

An advanced numerical method for predicting effective elastic properties of heterogeneous composite materials

2014 ◽  
Vol 117 ◽  
pp. 114-123 ◽  
Author(s):  
Lyazid Bouhala ◽  
Yao Koutsawa ◽  
Ahmed Makradi ◽  
Salim Belouettar
Keyword(s):  
Composite Materials ◽  
Numerical Method ◽  
Elastic Properties ◽  
Effective Elastic Properties

scholarly journals Reinforcement of Pavements with Geosynthetics Estimation of Effective Elastic Properties

Proceedings ◽  
2019 ◽  
Vol 38 (1) ◽  
pp. 8
Author(s):  
Carmen Calvo-Jurado ◽  
Pablo Roldán-Oliden ◽  
Miguel Candel
Keyword(s):  
Reinforced Concrete ◽  
Composite Materials ◽  
Elastic Properties ◽  
Civil Engineering ◽  
Homogenization Theory ◽  
Effective Elastic Properties

Composite materials are design to be able to achieve properties that would be unreachable if materials were used separately. A clear example of this, in civil engineering, is reinforced concrete. It is also important in this sense and into this field of work the material it is analyzed in this article, reinforced pavement of roads. The aim of this paper is to estimate the elastic properties of these materials. To reach that goal homogenization theory and related techniques would be used. The results obtained within this work shows significant structural benefits when including in the pavement these types of materials.

On the Mechanical Behavior of the Orthotropic Cord-Rubber Composite

1976 ◽  
Vol 4 (4) ◽  
pp. 219-232 ◽  
Author(s):  
Ö. Pósfalvi
Keyword(s):  
Mechanical Behavior ◽  
Uniaxial Tension ◽  
Elastic Properties ◽  
Large Deformations ◽  
Virtual Work ◽  
Poisson's Ratio ◽  
Principle Of Virtual Work ◽  
Effective Elastic Properties ◽  
Rubber Composite ◽  
Mooney Equation

Abstract The effective elastic properties of the cord-rubber composite are deduced from the principle of virtual work. Such a composite must be compliant in the noncord directions and therefore undergo large deformations. The Rivlin-Mooney equation is used to derive the effective Poisson's ratio and Young's modulus of the composite and as a basis for their measurement in uniaxial tension.

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