Article
Materials Science, Composites
Xujiang Chao, Wenlong Tian, Feng Xu, Dahua Shou
Summary: This study introduces a fractal model to predict the mechanical properties of complex porous composites efficiently, and derives the macroscopic elastic properties of random porous media based on fractal theory. The research demonstrates that random pore sizes significantly influence the elastic properties, showing that higher fractal dimensions result in decreased elastic properties.
COMPOSITES SCIENCE AND TECHNOLOGY
(2021)
Article
Engineering, Multidisciplinary
Eduardo Nobre Lages, Severino Pereira Cavalcanti Marques
Summary: This paper presents a novel micromechanical procedure for the linear elastic homogenization of composites with periodic microstructures. The proposed procedure is based on the Eshelby equivalent inclusion approach and extends a model originally derived for evaluating the effective elastic moduli of periodic two-phase composites. It solves the integral equations straightforwardly from a scheme of partition of the domain of each inclusion, demonstrating its efficiency through applications to composites with different arrays of coated fibers and constituent materials.
APPLIED MATHEMATICAL MODELLING
(2023)
Article
Green & Sustainable Science & Technology
Jean Gerard Ndong Engone, Ahmed El Moumen, Chafika Djelal, Abdellatif Imad, Toufik Kanit, Jonathan Page
Summary: Wood-cement composites (WCC) based on poplar sawdust were developed and characterized in this study. The mechanical properties of WCC were determined through compression tests and numerical calculations. The agreement between experimental data and numerical results was good for volume fractions up to 35%.
Article
Thermodynamics
Eduardo Nobre Lages, Severino Pereira Cavalcanti Marques
Summary: This study extends a method originally developed for two-phase composites to predict effective thermal conductivity for periodic composites with arbitrary number of phases and geometric shapes of inhomogeneities. The model shows good performance in evaluating effective thermal conductivity regardless of the volume fraction of inhomogeneities, providing an interesting alternative to existing approaches.
INTERNATIONAL JOURNAL OF THERMAL SCIENCES
(2022)
Article
Materials Science, Composites
Komal Chawla, Benjamin Raju, Dakshayini B. Subbappa, Kishore Babu Kancherla, Debiprosad Roy Mahapatra
Summary: This paper discusses the impact of pore formation mechanism on the elastic properties of composite polymer matrix, proposes a micromechanical model considering different stages of pore formation, and validates the model through experimental measurements on polymer samples.
POLYMER COMPOSITES
(2021)
Article
Materials Science, Multidisciplinary
E. N. Vilchevskaya, V. Kushch, M. Kachanov, I Sevostianov
Summary: Research has shown that in dealing with periodic composites, one-particle homogenization schemes may introduce significant errors, contradicting the previously held view of the equivalence of the two approaches.
MECHANICS OF MATERIALS
(2021)
Article
Mathematics, Applied
Ariel Ramirez-Torres, Raimondo Penta, Alfio Grillo
Summary: In this study, a two-scale asymptotic homogenization approach is adopted to investigate the effective properties of fractional viscoelastic composites. The focus is on a purely mechanical setting and the cell and homogenized problems are derived for the balance of linear momentum equation. The original framework is reformulated in the Laplace-Carson domain and effective coefficients are obtained in the time domain. Different combinations of constitutive models including elastic, fractional Kelvin-Voigt, fractional Zener, and fractional Maxwell constituents are considered. The results provide an interpretation of the theoretical findings and elucidate the role of fractional constitutive models on effective properties.
MATHEMATICAL METHODS IN THE APPLIED SCIENCES
(2023)
Article
Engineering, Multidisciplinary
James Vidler, Andrei Kotousov, Ching-Tai Ng
Summary: The far-field methodology, developed by J.C. Maxwell, is utilized to estimate the effective third order elastic constants of composite media containing random distribution of spherical particles. The results agree with previous studies and can be applied to homogenization problems in other fields.
APPLIED MATHEMATICAL MODELLING
(2024)
Article
Materials Science, Multidisciplinary
Yi Cheng, Kaifu Zhang, Biao Liang, Hui Cheng, Ping Liu
Summary: Based on an incremental sequential homogenization scheme, this paper investigates the elastoplastic behavior of composites with functionally graded interphase. The effective tangent moduli of the composites under infinitesimal strain load are obtained through a multi-coated model and homogenization process. The influences of interphase thickness/yield stress and reinforcement aspect ratio/volume fraction on the elastoplastic behavior of the composite are studied, showing that the interphase and reinforcement enhance the load capacity by changing the elastic and plastic strain distributions within each phase.
MECHANICS OF MATERIALS
(2022)
Article
Physics, Applied
Vincent Laude, Julio Andres Iglesias Martinez, Yan-Feng Wang, Muamer Kadic
Summary: The study examines the effective velocities of acoustic and elastic composites in the long wavelength limit, deriving explicit formulas based on second-order perturbation theory. It identifies strongly anisotropic sonic crystals and phononic crystals, and observes that quasi-longitudinal waves can be significantly slower than shear waves under specific conditions.
JOURNAL OF APPLIED PHYSICS
(2021)
Article
Materials Science, Multidisciplinary
J. Caleb Arp, John Nicholson, Joseph Geddes, D. Andrew Brown, Sez Atamturktur Russcher, Christopher L. Kitchens
Summary: Composite materials consist of a matrix reinforced by fillers, and the properties of the interphase region between the matrix and filler are poorly known. This study proposes a comprehensive framework to numerically model the interphase effects and infer the key mechanical properties of the interphase region from experimental measurements of the composite modulus.
ACS APPLIED POLYMER MATERIALS
(2023)
Article
Materials Science, Composites
Nada Ben-Ltaief, Franck NGuyen, Toufik Kanit, Abdellatif Imad, Nizar Bel-Hadj-Ali
Summary: Seashell waste, composed of calcium carbonate and a complex microstructure, is increasingly used as a bio-filler for composite materials. This study investigates the effect of particle size, shape, and inter-phase properties on the elastic properties of seashell particle-reinforced bio-composites. The results show that the addition of seashell particles significantly improves the elastic properties of the composites, while seashell particle morphology and inter-phase structure have a negligible effect. However, the inter-phase thickness has a considerable impact on the elastic properties of the bio-composites.
JOURNAL OF COMPOSITE MATERIALS
(2023)
Article
Mechanics
Yicong Zheng, Liangliang Chu, Guansuo Dui, Xiang Zhu
Summary: In this paper, the effective properties of particulate flexoelectric composites are studied using theoretical predictions and finite element simulations. The results show that flexoelectricity has a significant influence on the bulk modulus of nanoscale composites, but can be neglected at the micron scale.
Article
Chemistry, Physical
Laura Miller, Ariel Ramirez-Torres, Reinaldo Rodriguez-Ramos, Raimondo Penta
Summary: This paper derives the governing equations for the overall behavior of linear viscoelastic composites consisting of two families of elastic inclusions and an incompressible Newtonian fluid at the microscale. Using the asymptotic homogenization method, a new homogenized model is derived by upscaling the fluid-structure interaction problem. The model has coefficients that encode the properties of the microstructure and can be computed by solving a single local differential fluid-structure interaction problem.
Article
Materials Science, Multidisciplinary
Celal Soyarslan, Jos Havinga, Leon Abelmann, Ton van den Boogaard
Summary: We propose a computational framework for two-scale asymptotic homogenization to determine the intrinsic magnetic permeability of composites. By considering linear magnetostatics and using both vector and scalar potential formulations, we develop a homogenization algorithm based on the displacement method. Our results show excellent agreement with analytical solutions for regular composites and fast convergence for random heterogeneous materials.
RESULTS IN PHYSICS
(2023)
Article
Engineering, Multidisciplinary
Omid Noorikalkhoran, Igor Sevostianov
INTERNATIONAL JOURNAL OF ENGINEERING SCIENCE
(2017)
Article
Engineering, Multidisciplinary
Anton Trofimov, Igor Sevostianov
INTERNATIONAL JOURNAL OF ENGINEERING SCIENCE
(2017)
Article
Mechanics
Fengjuan Chen, Igor Sevostianov, Albert Giraud, Dragan Grgic
INTERNATIONAL JOURNAL OF SOLIDS AND STRUCTURES
(2018)
Article
Geochemistry & Geophysics
D. Grgic, A. Giraud, L. Schoumacker
GEOPHYSICAL JOURNAL INTERNATIONAL
(2019)
Article
Engineering, Civil
Richard Giot, Christophe Auvray, Simon Raude, Albert Giraud
EUROPEAN JOURNAL OF ENVIRONMENTAL AND CIVIL ENGINEERING
(2019)
Article
Materials Science, Multidisciplinary
A. Giraud, I. Sevostianov, V. I. Kushch, P. Cosenza, D. Pret, J. F. Barthelemy, A. Trofimov
MECHANICS OF MATERIALS
(2019)
Article
Engineering, Multidisciplinary
Philippe Cosenza, Anne-Laure Fauchille, Dimitri Pret, Stephen Hedan, Albert Giraud
INTERNATIONAL JOURNAL OF ENGINEERING SCIENCE
(2019)
Article
Engineering, Multidisciplinary
J. -F. Barthelemy, A. Giraud, J. Sanahuja, I. Sevostianov
INTERNATIONAL JOURNAL OF ENGINEERING SCIENCE
(2019)
Article
Engineering, Civil
A. Giraud, D. Grgic, I. Sevostianov
Summary: This paper focuses on the effective elastic properties and thermal conductivity of materials with isotropic homogeneous solid matrix containing ellipsoidal and non-ellipsoidal pores. The Effective Media Theory and property contribution tensor approach are used to estimate the properties. The effects of concavity parameter and aspect ratio of spheroidal pores are analyzed, and the results are applied to oolitic limestones. Maxwell, Self-Consistent, and Differential schemes are compared.
EUROPEAN JOURNAL OF ENVIRONMENTAL AND CIVIL ENGINEERING
(2022)
Article
Engineering, Multidisciplinary
K. Du, L. Cheng, J. F. Barthelemy, I. Sevostianov, A. Giraud, A. Adessina
INTERNATIONAL JOURNAL OF ENGINEERING SCIENCE
(2020)
Article
Materials Science, Multidisciplinary
K. Du, L. Cheng, J. F. Barthelemy, I. Sevostianov, A. Giraud, A. Adessina
Summary: This paper extends recent works on the effect of concave 3D pores in isotropic matrices to transversely isotropic matrices, developing approximate relations for compliance contribution tensor and applying it to effective elastic coefficients to illustrate the impact of concavity parameters on overall properties.
MECHANICS OF MATERIALS
(2021)
Article
Engineering, Multidisciplinary
J-F Barthelemy, I Sevostianov, A. Giraud
Summary: This paper derives the second-order crack opening displacement tensor for an arbitrarily oriented elliptical crack in an elliptically orthotropic matrix, obtaining the result in an explicit closed form. The study shows that transformed cracks exhibit different aspect ratios and require a correction factor in the crack opening displacement tensor.
INTERNATIONAL JOURNAL OF ENGINEERING SCIENCE
(2021)
Proceedings Paper
Engineering, Geological
Mei Qi, Albert Giraud, Jean-Baptist Colliat, Jian-Fu Shao
BIFURCATION AND DEGRADATION OF GEOMATERIALS WITH ENGINEERING APPLICATIONS
(2017)
Article
Mechanics
David Guinovart-Sanjuan, Raffaella Rizzoni, Reinaldo Rodriguez-Ramos, Raul Guinovart-Diaz, Julian Bravo-Castillero, Ranses Alfonso-Rodriguez, Frederic Lebon, Serge Dumont, Igor Sevostianov, Federico J. Sabina
COMPOSITE STRUCTURES
(2017)
Proceedings Paper
Materials Science, Multidisciplinary
M. A. Anisimova, A. G. Knyazeva, I. Sevostianov
4TH INTERNATIONAL CONFERENCE ON COMPETITIVE MATERIALS AND TECHNOLOGY PROCESSES (IC-CMTP4)
(2017)
Article
Engineering, Multidisciplinary
Tohya Kanahama, Motohiro Sato
Summary: This study theoretically explains the effect of initial deflection and initial slope on self-buckling characteristics of heavy columns and proposes a formula characterizing the self-buckling problem. The results show that the greatest height is proportional to the 2/3 power of radius, and the formula can potentially predict the height of tree-like natural structures.
INTERNATIONAL JOURNAL OF ENGINEERING SCIENCE
(2024)
Article
Engineering, Multidisciplinary
Aps Selvadurai, Alexander P. Suvorov
Summary: This paper examines the torsion of a solid cylinder made of a fluid-saturated porous medium with a hyperelastic porous skeleton. It analyzes the mechanics of the twisted cylinder in both short-term and long-term behaviors, using numerical solutions and the ABAQUSTM finite element code.
INTERNATIONAL JOURNAL OF ENGINEERING SCIENCE
(2024)
Article
Engineering, Multidisciplinary
S. Kanaun
Summary: This study focuses on spherical radially transverse isotropic heterogeneous inclusions in homogeneous isotropic conductive host media. The volume integral equation for the field in the medium with an isolated inclusion subjected to a constant external field is solved using Mellin-transform technique. The method allows revealing tensor structure of the solution with precision to one scalar function of radial coordinate. The study also investigates the influence of neutral inclusions and conductivity coefficients on the effective conductivity of the composite material.
INTERNATIONAL JOURNAL OF ENGINEERING SCIENCE
(2024)
Article
Engineering, Multidisciplinary
Marinos Kattis, Vassilis Tsitsos, Vassilis Karatzaferis
Summary: The proposed model utilizes continuum mechanics to describe the mechanical behavior of a weakened interface between materials with microstructure, simulating the weakened interface using a surface elastic medium adhering on either side with bulk elastic continua. The model is able to investigate the effect of a weakened interface on stress concentration around inhomogeneities embedded in an unbounded matrix of Cosserat materials.
INTERNATIONAL JOURNAL OF ENGINEERING SCIENCE
(2024)
Article
Engineering, Multidisciplinary
Shixiang Zhao, Yu. V. Petrov, Yuyi Zhang, G. A. Volkov, Zejian Xu, Fenglei Huang
Summary: This paper theoretically studies the thermal softening related to stress relaxation using the incubation time approach and examines the temperature-time correspondence. The developed relaxation model of plasticity (RP model) is analyzed and compared with other constitutive models and artificial neural networks. The advantages and disadvantages of different models are discussed, and the differences between the ANN model and other constitutive models are examined.
INTERNATIONAL JOURNAL OF ENGINEERING SCIENCE
(2024)
Article
Engineering, Multidisciplinary
Ivan I. Argatov, Federico J. Sabina
Summary: This study models a seismic metabarrier as a cluster of single-degree-of-freedom resonator units and considers the scattering effects on pulsed Rayleigh waves caused by the vertical displacements of the resonators and the normal contact forces. The variation of the amplitude reduction factor due to the model parameters variation is studied in detail.
INTERNATIONAL JOURNAL OF ENGINEERING SCIENCE
(2024)
