Waveguides induced by replacing defects in phononic crystal

Z Jiang, Y Zhou, S Zheng, J Liu, B Xia - International Journal of Mechanical …, 2023 - Elsevier
Phononic crystal, the artificial material, has shown the ability to guide the waves. In this
paper, we theoretically and experimentally realize interface transports by doping replacing …

Phonon diffraction and interference using nanometric features

P Desmarchelier, E Nikidis, R Anufriev… - Journal of Applied …, 2024 - pubs.aip.org
Phonon diffraction and interference patterns are observed at the atomic scale, using
molecular dynamics simulations in systems containing crystalline silicon and nanometric …

Dislocation formation in the heteroepitaxial growth of PbSe/PbTe systems

Y Li, B Gu, A Diaz, SR Phillpot, DL McDowell, Y Chen - Acta Materialia, 2023 - Elsevier
The paper presents a multiscale study of the kinetic processes of the heteroepitaxial growth
of the PbSe/PbTe (111) and PbTe/PbSe (001) systems, using the Concurrent Atomistic …

Resonant interaction between phonons and PbTe/PbSe (001) misfit dislocation networks

Y Li, Z Zheng, A Diaz, SR Phillpot, DL McDowell… - Acta Materialia, 2022 - Elsevier
This work aims at a quantitative and mechanistic understanding of the dynamic process of
the phonon-dislocation interaction in PbTe/PbSe (001) heterostructures using the …

A parallel algorithm for the concurrent atomistic-continuum methodology

A Diaz, B Gu, Y Li, SJ Plimpton, DL McDowell… - Journal of …, 2022 - Elsevier
In this work we present a parallel algorithm for the Concurrent Atomistic Continuum (CAC)
formulation that can be integrated into existing molecular dynamics codes. The CAC …

Unifying temperature definition in atomistic and field representations of conservation laws

Y Chen - Proceedings of the Royal Society A, 2024 - royalsocietypublishing.org
In this work, a field representation of the conservation law of linear momentum is derived
from the atomistic, using the theory of distributions as the mathematical tool, and expressed …

Topological Rainbow Trapping of Plate‐Mode Waves Based on 1D Gradual Phononic Crystal Slabs

X Bu, H Huang, J Chen, X Xie - physica status solidi (RRL) …, 2024 - Wiley Online Library
In this article, the concept of topological rainbow is introduced into the plate‐mode waves
system of 1D phononic crystal slabs, achieving adjustable topological elastic rainbow …

Bridging length and time scales in predictive simulations of thermo-mechanical processes

J Sun, N Taormina, E Bilgili, Y Li… - Modelling and Simulation …, 2024 - iopscience.iop.org
This work introduces a theoretical formulation and develops numerical methods for finite
element implementation of the formulation so as to extend the concurrent atomistic …

The Band Gap Characteristics of a New Double-oscillator Phononic Crystal

X Yuan, Z Bo - Noise and Vibration Control, 2023 - nvc.sjtu.edu.cn
为获得较宽频率范围弹性波耗散性能, 并有效控制减振降噪频率带宽, 提出一种新型双振子声子
晶体结构, 研究其能带和传输特性, 并利用 COMSOL Multiphysics 软件计算该声子晶体结构起始 …