Y. Chen

Bio: Y. Chen is an academic researcher from Rutgers University. The author has contributed to research in topics: Fiber-reinforced composite & Equations of motion. The author has an hindex of 7, co-authored 8 publications receiving 197 citations.

An Edge Dislocation in a Three-Phase Composite Cylinder Model

Abstract: It is shown that, the three-phase model allows the dislocation to have a stable equilibrium position under much less stringent combinations of the material constants. Also, that in the three-phase model the orientation of Burgers vector has only limited influence on he stability of dislocation

An Incremental Plastic Analysis of Multiphase Materials

Abstract: This incremental method is aimed at applications for composites having several phases each with different plastic behaviors and also materials undergoing phase transformation. A sample calculation was performed for a composite of epoxy matrix reinforced by silica particles

A generalized self-consistent mechanics method for composite materials with multiphase inclusions

Abstract: A generalized self-consistent method (GSCM) based on energy equivalence and an inclusion matrix-composite model is proposed that has applicability to composites with three or more phases. For a solid containing single-phase reinforcements, the present approach is equivalent to the inclusion-matrix-composite model. Both particulate-reinforced and unidirectional fiber-reinforced composites are investigated. For a multiphase composite with a phase volume fraction of c1,c2,c3, …, it is found that the effective moduli are approximately decoupled such that Ē(c1,c2,c3, …) / E = Ē0(c1)/E × Ē0c2/E × Ē0(c3/E × …, where Ē0(·) is the closed-form effective moduli of the correspondin composites with single-phase reinforcements, and E is the moduli of the matrix material. Compared with experimental data and results from numerical studies, the current approach provides reasonably accurate predictions for the effective moduli of multiphase composites.

Review of a Unified Elastic—Viscoplastic Theory

Abstract: Although inelastic response of solid materials at low stress levels has been observed and measured for over a century and a half (an account of the early work is given by Bell1), engineering thinking on material behavior has been dominated by the considerable success of the classical elastic and plastic theories. In contrast, the work on ‘dislocation dynamics’ in the 1950s and early 1960s by Johnston and Gilman2,3 and by Hahn4 and others was based on the concept of considering both elastic and plastic deformations to be generally non-zero at all stages of loading. Those formulations were one-dimensional and restricted to simple loading histories such as uniaxial extension and creep. One of the main interests in those studies was to obtain the form of the equations and the material constants from measurements of microstructural quantities.