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 effect of weave microstructure on the moisture diffusion behavior of polymer matrix woven composites is investigated using finite element subcell models with appropriate boundary conditions, and the results are presented and discussed in terms of the tow waviness, tow cross-section shape and weave pattern.
72 citations
TL;DR: In this paper, a micromechanical finite element approach for the estimation of the effective Young's modulus of single-walled carbon nanotube reinforced composites is described.
Abstract: This paper describes a micromechanical finite element approach for the estimation of the effective Young’s modulus of single-walled carbon nanotube reinforced composites. These composite materials consist of aligned carbon nanotubes that are uniformly distributed within the matrix. Based on micromechanical theory, the Young’s modulus of the nanocomposite is estimated by considering a representative cylindrical volume element. Within the representative volume element, the reinforcement is modeled according to its atomistic microstructure while the matrix is modeled as a continuum medium. Spring-based finite elements are employed to simulate the discrete geometric structure and behavior of each single-walled carbon nanotube. The load transfer conditions between the carbon nanotubes and the matrix are modeled using joint elements of changeable stiffness that connect the two materials, simulating the interfacial region. The proposed model has been tested numerically and yields reasonable results for variable stiffness values of the joint elements. The effect of the interface on the performance of the composite is investigated for various volume fractions. The numerical results are compared with experimental and analytical predictions.
72 citations
TL;DR: Based on the two-dimensional (plane-strain) micromechanical fiber interaction framework, effective transverse elastic moduli of two-phase brittle matrix composites containing many randomly located yet unidirectionally aligned circular fibers are investigated in this paper.
72 citations
TL;DR: In this paper, a multi-scale progressive damage modeling strategy was proposed to investigate the damage and failure behaviors of 2D woven composites, and the damage evolution is governed by the material fracture energy during failure.
72 citations
TL;DR: In this article, the authors describe an approach to incorporate the effects of granularity in monolithic cementitious materials, which is known to be significantly affected by their granular nature.
Abstract: The mechanical behavior of monolithic cementitious materials is known to be significantly affected by their granular nature. This paper describes an approach to incorporate the effects of granulari...
72 citations