Topic
Micromechanics
About: Micromechanics is a research topic. Over the lifetime, 6000 publications have been published within this topic receiving 162635 citations.
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TL;DR: In this article, the Boundary Element Method (BEM) based homogenization of the periodic transversely isotropic linear elastic fiber-reinforced composites is proposed.
Abstract: The paper presented is devoted to the Boundary Element Method based homogenization of the periodic transversely isotropic linear elastic fiber-reinforced composites. The composite material under consideration has deterministically defined elastic properties while its components are perfectly bonded. To have a good comparison with the FEM-based computational techniques used previously, the additional Finite Element discretization is presented and compared numerically against BEM homogenization implementation on the example of engineering glass–epoxy composite. The homogenization method proposed has rather general characteristics and, as it is shown, can be easily extended on n -component composites. On the contrary, we can consider and homogenize the heterogeneous media with randomly defined material properties using Monte-Carlo simulation technique or second order perturbation second probabilistic moment approach.
48 citations
TL;DR: The elastic micromechanics model presented accurately predicted elastic modulus and polymerization shrinkage strain as a function of filler fraction, superior to other analytical methods.
48 citations
TL;DR: In this paper, an instrumented tensile impact test system with partial loading capabilities has been developed and tested, which included a low mass gripping system for tensile impacts and a vibration-damped base and load cell.
Abstract: An instrumented tensile impact test system with partial loading capabilities has been developed and tested. Hardware development included a low mass gripping system for tensile impact and a vibration-damped base and load cell. A standard pendulum type impact testing machine was modified for use. The rate sensitive material properties of unidirectional glass/epoxy and graphite/epoxy composite materials were investigated. The micromechanics of fracture within the composite caused by impact were studied, using partially loaded impact test specimens and scanning electron microscopy.
48 citations
TL;DR: In this article, a unit cell micromechanics model is used to predict the effective composite properties of simulated random microstructures in particulate reinforced composites, which are introduced into the model through the inclusion of an interfacial region linked to the size of the reinforcing phase.
48 citations
TL;DR: In this article, a three-dimensional multi-fibre multi-layer micromechanical finite element model was developed for the prediction of mechanical behaviour and damage response of composite laminates.
47 citations