scholarly journals Pentamode Metamaterials with Independently Tailored Bulk Modulus and Mass Density

2014 ◽  
Vol 2 (5) ◽  
Author(s):  
Muamer Kadic ◽  
Tiemo Bückmann ◽  
Robert Schittny ◽  
Peter Gumbsch ◽  
Martin Wegener
Keyword(s):  
Bulk Modulus ◽  
Mass Density

An elastic metamaterial with simultaneously negative mass density and bulk modulus

2011 ◽  
Vol 98 (25) ◽  
pp. 251907 ◽  
Author(s):  
X. N. Liu ◽  
G. K. Hu ◽  
G. L. Huang ◽  
C. T. Sun
Keyword(s):  
Bulk Modulus ◽  
Mass Density ◽  
Negative Mass

EFFECTS OF STOICHIOMETRY ON PROPERTIES OF DGEBF/DETDA EPOXY USING MOLECULAR DYNAMICS

2021 ◽  
Author(s):  
SAGAR PATIL ◽  
MICHAEL OLAYA ◽  
PRATHAMESH DESHPANDE ◽  
MARIANNA MAIARÙ ◽  
GREGORY ODEGARD
Keyword(s):  
Mechanical Properties ◽  
Molecular Dynamics ◽  
Molecular Modeling ◽  
Bulk Modulus ◽  
Mass Density ◽  
Strong Dependence ◽  
Crosslinking Density ◽  
Mechanical Deformation ◽  
Epoxy System ◽  
Reactive Interface

This article details the molecular modeling of full and off-stoichiometry models of the DGEBF/DETDA epoxy system using Molecular Dynamics to predict the mechanical properties as a function of the crosslinking density. The Reactive Interface Force Field (IFF-R) is implemented in this work to simulate mechanical deformation. The “fix bond/react” command in LAMMPS is used to simulate crosslinking between epoxy monomers. The results show that the predicted mass density, volumetric shrinkage, and bulk modulus have a strong dependence on the stoichiometry of the epoxy.

A design of active elastic metamaterials with negative mass density and tunable bulk modulus

2018 ◽  
Vol 230 (3) ◽  
pp. 1003-1008 ◽  
Author(s):  
Sheng Sang ◽  
Anwer Mhannawee ◽  
Ziping Wang
Keyword(s):  
Bulk Modulus ◽  
Mass Density ◽  
Negative Mass ◽  
Elastic Metamaterials

Metamaterial with Simultaneously Negative Bulk Modulus and Mass Density

2007 ◽  
Vol 99 (9) ◽  
Author(s):  
Yiqun Ding ◽  
Zhengyou Liu ◽  
Chunyin Qiu ◽  
Jing Shi
Keyword(s):  
Bulk Modulus ◽  
Mass Density

Three-Dimensional Sonic Band Gaps Tunned by Material Parameters

2010 ◽  
Vol 29-32 ◽  
pp. 1797-1802 ◽  
Author(s):  
Xiao Zhou Zhou ◽  
Yue Sheng Wang ◽  
Chuan Zeng Zhang
Keyword(s):  
Bulk Modulus ◽  
Mass Density ◽  
Density Ratio ◽  
Three Dimensional ◽  
Expansion Method ◽  
Small Mass ◽  
Band Gaps ◽  
Face Centered Cubic ◽  
Modulus Ratio ◽  
Material Parameters

In this paper, band gaps tunned by material parameters in three-dimensional fluid-fluid sonic crystals are studied. From the basic wave equation, it is found that the material parameters directly determining the three-dimensional sonic band gaps are the mass density ratio and bulk modulus ratio. The calculation of the sonic band gaps is completed by the plane-wave expansion method. The effects of these parameters on sonic band gaps are discussed in details for the simple-cubic (sc), face-centered cubic (fcc) and body-centered cubic (bcc) lattices. The results show that the first potential sonic band gap easily appears at both small mass density ratio and bulk modulus ratio, and becomes wider with both of these two parameters decreasing. The bulk modulus ratio plays a more important role than the mass density ratio in tuning the sonic band gaps. The present analysis can be applied to artificially design band gaps.

scholarly journals Flute-model acoustic metamaterials with simultaneously negative bulk modulus and mass density

2013 ◽  
Vol 173 ◽  
pp. 14-18 ◽  
Author(s):  
Hong-Cheng Zeng ◽  
Chun-Rong Luo ◽  
Huai-Jun Chen ◽  
Shi-Long Zhai ◽  
Chang-Lin Ding ◽  
...  
Keyword(s):  
Bulk Modulus ◽  
Mass Density ◽  
Acoustic Metamaterials

scholarly journals Coupled Membranes with Doubly Negative Mass Density and Bulk Modulus

2013 ◽  
Vol 110 (13) ◽  
Author(s):  
Min Yang ◽  
Guancong Ma ◽  
Zhiyu Yang ◽  
Ping Sheng
Keyword(s):  
Bulk Modulus ◽  
Mass Density ◽  
Negative Mass
Sign in / Sign up

Export Citation Format

Share Document