The mechanical properties of an epoxy resin with a second phase dispersion

Radford, K.C.

doi:10.1007/bf00552042

Cited by 94 publications

(58 citation statements)

References 1 publication

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“…It was reported that the size of fillers in a constant volume fraction cannot significantly affect the stiffness (or called Young's modulus) [39,40]. However, Ji et al have theoretically proved that there is a critical size for fillers in nylon 6/montmorillonite nanocomposites, below which the filler size can affect the stiffness (Fig.…”

Section: Effect Of Filler Size and Shapementioning

confidence: 99%

A review on the role of interface in mechanical, thermal, and electrical properties of polymer composites

Kashfipour

Mehra

Zhu

2018

Adv Compos Hybrid Mater

176

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Composite materials and especially polymer composites are widely used in daily life and different industries due to their vastly different properties and design flexibility. It is known that the properties of the composites are strongly related to the properties of its constituents. However, it has been reported in many studies, experimentally and by simulations, that the characteristics of the composites do not follow the rule of mixing. It means that in addition to properties of the constituents, there are other parameters affecting the final physicochemical properties of composites. The interfacial interactions between fillers and host is one of the factors which can strongly affect the properties of the composite. In this review, we summarized the type of interactions between the constituents, their improvement techniques, interaction measurement methods, and the effects of interfacial interactions on thermal, mechanical, and electrical properties of composites.

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Section: Effect Of Filler Size and Shapementioning

confidence: 99%

A review on the role of interface in mechanical, thermal, and electrical properties of polymer composites

Kashfipour

Mehra

Zhu

2018

Adv Compos Hybrid Mater

176

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“…Figure 21 compares the strength and fracture toughness of the different mixtures. The fracture toughness is computed using Equation particle diameter, which is often observed in experiments [33,34]. However, the fracture toughness with relation to particle diameter is non-monotonic and attains a maximum for 10 µm diameter particles.…”

Section: Effects Of Particle Diametermentioning

confidence: 99%

On mechanics and material length scales of failure in heterogeneous interfaces using a finite strain high performance solver

Mosby

Matouš

2015

Modelling Simul. Mater. Sci. Eng.

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Three-dimensional simulations capable of resolving the large range of spatial scales, from the failure-zone thickness up to the size of the representative unit cell, in damage mechanics problems of particle reinforced adhesives are presented. We show that resolving this wide range of scales in complex three-dimensional heterogeneous morphologies is essential in order to apprehend fracture characteristics, such as strength, fracture toughness and shape of the softening profile. Moreover, we show that computations that resolve essential physical length scales capture the particle size-effect in fracture toughness, for example. In the vein of imagebased computational materials science, we construct statistically optimal unit cells containing hundreds to thousands of particles. We show that these statistically representative unit cells are capable of capturing the first-and second-order probability functions of a given data-source with better accuracy than traditional inclusion packing techniques. In order to accomplish these large computations, we use a parallel multiscale cohesive formulation and extend it to finite strains including damage mechanics. The high-performance parallel computational framework is executed on up to 1024 processing cores. A mesh convergence and a representative unit cell study are performed. Quantifying the complex damage patterns in simulations consisting of tens of millions of computational cells and millions of highly nonlinear equations requires data-mining the parallel simulations, and we propose two damage metrics to quantify the damage patterns. A detailed study of volume fraction and filler size on the macroscopic traction-separation response of heterogeneous adhesives is presented.

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“…On the other hand, the decrease in particle size can increase the strength as long as the particles are well dispersed (Nakamura et al 1992;Pukanszky and Vörös 1993;Radford 1971).…”

Section: Introductionmentioning

confidence: 99%

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

2018

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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.

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The mechanical properties of an epoxy resin with a second phase dispersion

Cited by 94 publications

References 1 publication

A review on the role of interface in mechanical, thermal, and electrical properties of polymer composites

A review on the role of interface in mechanical, thermal, and electrical properties of polymer composites

On mechanics and material length scales of failure in heterogeneous interfaces using a finite strain high performance solver

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

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