Elastic–Adhesive Interface Effect on Effective Elastic Moduli of Fiber-Reinforced Asphalt Concrete with Large Deformation
Publication: Journal of Engineering Mechanics
Volume 144, Issue 9
Abstract
A methodology has been developed to account for the elastic–adhesive interface effect on the effective elastic moduli of fiber-reinforced asphalt concrete. To consider the large deformation of asphalt mixtures, the nonlinear factor related to the second-order term of strain was first proposed. The effective medium method was introduced to obtain the closed form for the elastic moduli of isotropic asphalt concrete reinforced by unidirectional isotropic fibers of a circular cross section. The elastic and adhesive coefficients were used to describe the interface effect. To reveal the influence of interface microstructure in asphalt concrete quantitatively, some numerical examples are given. It was found that the effective elastic moduli showed significant variation with the interface microstructure in asphalt concrete, especially with the small radius of fibers. The interface effect with a large deformation of asphalt concrete was also examined in detail.
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Acknowledgments
This work is supported by the National Natural Science Foundations of China (No. 11472181).
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Information
Published In
Journal of Engineering Mechanics
Volume 144 • Issue 9 • September 2018
Copyright
©2018 American Society of Civil Engineers.
History
Received: Oct 2, 2017
Accepted: Mar 15, 2018
Published online: Jun 27, 2018
Published in print: Sep 1, 2018
Discussion open until: Nov 27, 2018
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