Effective properties of composite material based on total strain energy equivalence

Wiśniewska, Anna; Hernik, Szymon; Liber-Kneć, Aneta; Egner, Halina

doi:10.1016/j.compositesb.2018.11.094

Cited by 18 publications

(16 citation statements)

References 33 publications

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“…Additionally, the new method, proposed by Wiśniewska, was also used to predict the elastic modulus [ 53 , 54 ]. In this method, the composite is described as a multi-phase material, and the inclusions are randomly distributed and oriented.…”

Section: Resultsmentioning

confidence: 99%

Basalt/Glass Fiber Polypropylene Hybrid Composites: Mechanical Properties at Different Temperatures and under Cyclic Loading and Micromechanical Modelling

2021

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Basalt/glass fiber polypropylene hybrid composites were developed as subjects of investigation, with the aim to characterize their properties. An injection molding machine was used to produce the test samples. The following three different tests, at various specimen temperatures, were conducted: tensile test, three-point flexural test, and Charpy impact test. To determine fatigue behavior, the samples were uniaxially loaded and unloaded. Mechanical hysteresis loops were recorded and the dissipation energy of each loop was calculated. To determine the adhesion and dispersion between the fibers and the matrix, the fractured surfaces of the various specimens, after the tensile test, were investigated using a scanning electron microscope. The results show that the production of a composite with both basalt and glass fibers, in a polypropylene matrix with maleic anhydride-grafted polypropylene, can be successfully achieved. The addition of the two types of fibers increased the tensile strength by 306% and the tensile modulus by 333% for a composition, with 20% by weight, of fibers. The material properties were estimated with the help of a simulation software, and validated with a FEA. A satisfactory correlation between the simulation and measurement data was achieved. The error lays in a range of 2% between the maximum stress values. At a lower strain (up to 0.02), the stress values are very well matched.

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Section: Resultsmentioning

confidence: 99%

Basalt/Glass Fiber Polypropylene Hybrid Composites: Mechanical Properties at Different Temperatures and under Cyclic Loading and Micromechanical Modelling

2021

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“…According to the used mechanical equivalence hypothesis, both configurations (real and fictitious) are equivalent [1]. In this approach the total energy equivalence hypothesis is adopted, declared in the following way [2,5,23]:…”

Section: Theoretical Formulationmentioning

confidence: 99%

“…For ξ=1, and in the boundary case when the properties of inclusions have a tendency to the properties of a matrix material, condition (15) should also be fulfilled. These conditions allow to uniquely identify functions f(ξ) and g(ξ) [5].…”

Section: Theoretical Formulationmentioning

confidence: 99%

“…This method allows us to describe both the elastic and plastic behaviour of the material, thanks to the use of the framework of thermodynamics of irreversible processes with internal state variables. It was described in detail in Reference [5] and compared with classical estimations like Voigt-Reuss [6,7], Hashin-Shtrikman [8], Mori-Tanaka [9], the self-consistent method and so forth. These approaches are the most often used bounds in physics of solids to determine the properties of a multiphase material.…”

Section: Introductionmentioning

confidence: 99%

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Optimization of Functionally Graded Structural Members by Means of New Effective Properties Estimation Method

Wiśniewska

Egner

2019

Materials

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An innovative method of effective composite mechanical properties estimation is applied to optimize the distribution of reinforcement in a functionally graded structural element. The concept is based on the assumption of the mechanical equivalence between two configurations: The real heterogeneous composite configuration and the fictitious quasi-homogeneous one. It allows to obtain the analytical formulae describing the dependence of the effective elastic composite properties on the volume fraction of reinforcing inclusions. As an example of application, a circular bar subjected to torsion is considered.

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“…Additionally, among all SPD techniques, RUE along with HPT can results in highest amount of strain during the cycle in the materials matrix. Higher amount of strain can potentially result in more homogeneous reinforcement distribution in the composite matrix [19]. This is particularly critical in metal-graphitic materials composites, since there is considerable tendency in the graphitic materials to agglomerate, which usually is accompanied with degradation in the composite final properties [20,21].…”

Section: Introductionmentioning

confidence: 99%

Mechanical and electrochemical behaviors assessments of Aluminum- Graphene Oxide composites fabricated by mechanical milling and repetitive upsetting extrusion

Bahri

Askarnia

Esmaeilzadeh

et al. 2021

jcc

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Effective properties of composite material based on total strain energy equivalence

Cited by 18 publications

References 33 publications

Basalt/Glass Fiber Polypropylene Hybrid Composites: Mechanical Properties at Different Temperatures and under Cyclic Loading and Micromechanical Modelling

Basalt/Glass Fiber Polypropylene Hybrid Composites: Mechanical Properties at Different Temperatures and under Cyclic Loading and Micromechanical Modelling

Optimization of Functionally Graded Structural Members by Means of New Effective Properties Estimation Method

Mechanical and electrochemical behaviors assessments of Aluminum- Graphene Oxide composites fabricated by mechanical milling and repetitive upsetting extrusion

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