Influence of filler content and interphase properties on large deformation micromechanics of particle filled acrylics

Gunel, Eray; Basaran, Cemal

doi:10.1016/j.mechmat.2012.10.012

Cited by 26 publications

(15 citation statements)

References 72 publications

Supporting

Mentioning

Contrasting

Unclassified

Order By: Relevance

“…In this paper, the effect of annealing process on the microstructural and micromechanical properties of poly (methyl methacrylate) (PMMA) and polycarbonate (PC), as two widely used amorphous polymers which their thermomechanical properties in blends, composites or as individual materials have been the topic of many recent studies, is critically investigated. For characterizing the evolution of the free volume content of the samples, the positron lifetime spectroscopy has been used.…”

Section: Resultsmentioning

confidence: 99%

Effect of annealing temperature on interrelation between the microstructural evolution and plastic deformation in polymers

Malekmotiei

Voyiadjis

Samadi-Dooki

et al. 2017

J. Polym. Sci. Part B: Polym. Phys.

View full text Add to dashboard Cite

The mechanical loading induced flow of glassy polymers is triggered by the nucleation of shear transformation units, and strongly depends on the initial microstructural state of the material. Therefore, investigation of the possible relationship between the microstructural state variables and plastic deformation is required for a better understanding of the macroscopic response of this class of materials during large deformation. In this study, free volume content is considered as a state variable and thermal treatment is selected as a process through which the accelerated and forced evolution of the free volume can be imposed. For two well-known glassy polymers, poly(methyl methacrylate) and polycarbonate, the free volume content alteration upon annealing is monitored via positron annihilation spectroscopy, and the changes of the micro-and macromechanical properties are also obtained by utilizing nanoindentation technique and employing the homogeneous amorphous flow theory. The correlation between the microstructural state variable, that is, free volume, and the micromechanical state variable, that is, shear activation volume, is then investigated. The results reveal opposite direction of alterations of free volume and shear activation volume with annealing temperature. Accordingly, the possibility of the existence of an interrelation between these two state variables is critically discussed.

show abstract

Section: Resultsmentioning

confidence: 99%

Effect of annealing temperature on interrelation between the microstructural evolution and plastic deformation in polymers

Malekmotiei

Voyiadjis

Samadi-Dooki

et al. 2017

J. Polym. Sci. Part B: Polym. Phys.

View full text Add to dashboard Cite

show abstract

“…At high volume fraction (> 40%), a further increase in volume fraction could lead to a decrease in G I C values (Gunel and Basaran 2013b;). This was explained by the fact that the particles tend to agglomerate and cause stress concentrations leading to premature failure (Ferreira et al 1997).…”

Section: Introductionmentioning

confidence: 99%

“…Cohesive zone models have also been used in the metal matrix composite (MMC) community; for example Charles et al (2010) studied the competition between interface debonding and particle fracture whereas Qing (2014) studied the influence of particle arrangement and interface strength on the mechanical behaviour of MMCs. Using a multiparticle unit cell model, Basaran and Gunel (2013) and Gunel and Basaran (2013b) studied the influence of interphase properties and interparticle distance on large deformation micromechanics of PMMA/ATH composites. However, the assumptions of the fillers being perfect spheres and equally spaced in all directions, limit the application of this approach to real composites (Tarleton et al 2013).…”

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Development of an image-based numerical model for predicting the microstructure–property relationship in alumina trihydrate (ATH) filled poly(methyl methacrylate) (PMMA)

2018

View full text Add to dashboard Cite

Particulate composites are found in a wide range of applications. Their heterogeneous microstructure affects their bulk behavior and structural performance, however tools for predicting this important structure-property relationship are still lacking. In this study, a numerical method that can provide predictions of the mechanical response of a particulate polymeric matrix composite as a function of volume fraction and particle mean diameter is presented. The work is derived for an alumina trihydrate filled poly(methyl methacrylate) but the methodology is generic and can be used for any particulate composite. Representative Volume elements are determined through images obtained from scanning electron microscopy. The model takes into account the possibility of failure through interface debonding as well as cracks through the matrix. The model predictions for the modulus and fracture strength of the composites are validated through independent experiments on the composite. The numerical results are also used to qualitatively explain the trends measured regarding the fracture toughness of the composites. Compared to other literature on particulate composites, our study is the first to report accurate stress-strain distributions as well as fracture predictions whilst all the necessary model parameters defining the failure criteria are all derived through independent experiments. This paves R. Zhang · J. Y. S. Li-Mayer · M. N. Charalambides (B) Department of Mechanical Engineering, Imperial College London, South Kensington, London SW7 2AZ, UK e-mail: m.charalambides@imperial.ac.uk the way for a relatively simple methodology for determining structure-property relationships in composites design, enabling smarter material utilization and optimal mechanical properties.

show abstract

“…A relatively large number of investigations have been dedicated to account for the role of interphase in fiber/particle-reinforced composites (Gunel and Basaran, 2013;Yao et al, 2013), with homogeneous interphase (Mogilevskaya and Crouch, 2004) or inhomogeneous one (Shen and Li, 2003). These investigations have shed significant insights into the elastic properties of CNT-reinforced composites considering interphase.…”

Section: Introductionmentioning

confidence: 99%

The strengthening effect of carbon nanotube in metal matrix composites considering interphase

Dong

Zhou

Liu

et al. 2015

Mechanics of Materials

View full text Add to dashboard Cite

Influence of filler content and interphase properties on large deformation micromechanics of particle filled acrylics

Cited by 26 publications

References 72 publications

Effect of annealing temperature on interrelation between the microstructural evolution and plastic deformation in polymers

Effect of annealing temperature on interrelation between the microstructural evolution and plastic deformation in polymers

Development of an image-based numerical model for predicting the microstructure–property relationship in alumina trihydrate (ATH) filled poly(methyl methacrylate) (PMMA)

The strengthening effect of carbon nanotube in metal matrix composites considering interphase

Contact Info

Product

Resources

About