Low Frequency Study of Te2 Cluster and CdSeTe Nanoparticles Embedded in Borosilicate Glass

2016 ◽  
Vol 28 ◽  
pp. 120-124
Author(s):  
Venu Mankad ◽  
Vaishali Sharma ◽  
Prafulla K. Jha
Keyword(s):  
Boundary Condition ◽  
Borosilicate Glass ◽  
Glass Matrix ◽  
Continuum Model ◽  
Low Frequency ◽  
Acoustic Vibration ◽  
Elastic Continuum ◽  
Fixed Boundary ◽  
Fixed Boundary Condition

The objective of this paper is to study the low frequency acoustic vibration of Te2 cluster and CdSeTe nanoparticle embedded in borosilicate glass matrix. Lamb’s model is used to predict the occurrence of various mode to support the experimental observations by considering the elastic continuum model and fixed boundary condition. The presence of medium significantly affects the phonon peaks and results into the broadening of the modes. The linewidth is found to depend inversely on the size, similar to that reported experimentally.

scholarly journals Bosonization of Quantum Sine–Gordon Field with Boundary

1997 ◽  
Vol 12 (09) ◽  
pp. 1711-1741 ◽  
Author(s):  
Bo-Yu Hou ◽  
Kang-Jie Shi ◽  
Yan-Shen Wang ◽  
Wen-Li Yang
Keyword(s):  
Boundary Condition ◽  
Ground States ◽  
Form Factors ◽  
Fixed Boundary ◽  
Boundary Operators ◽  
Sine Gordon Model ◽  
Fixed Boundary Condition

Boundary operators and boundary ground states in sine–Gordon model with a fixed boundary condition are studied using bosonization and q-deformed oscillators. We also obtain the form-factors of this model.

Finite Element Analysis of Concrete Filled Double-Skin (CHS Inner and CHS Outer) Steel Tubes under Lateral Impact

2014 ◽  
Vol 501-504 ◽  
pp. 704-709 ◽  
Author(s):  
Hao Yu Cao ◽  
Rui Wang
Keyword(s):  
Boundary Condition ◽  
Finite Element Analysis ◽  
Finite Element ◽  
Composite Structure ◽  
Lateral Impact ◽  
Steel Tubes ◽  
Element Analysis ◽  
Fixed Boundary ◽  
Double Skin ◽  
Fixed Boundary Condition

As a new type of steel-concrete composite structure, Concrete-Filled Double Skin Steel Tubes not only have the advantages of the traditional steel concrete structures, but also carried out cross-section and great bending stiffness. This structure is widely used in high-rise buildings, bridges and power facilities. During the whole life cycle, concrete-filled double skin steel tubes may inevitably suffer from various impact loads. In current the research about steel-concrete composite structure focuses on the performance about axial compression, bias, bending, and low cyclic loads. but the research about it under lateral impact is equally import. In this paper, the behavior of concrete-filled double skin steel tubes (CFDST) with fixed boundary condition was analyzed by Finite Element Analysis method ,to analyze the destruction modal, impact force (F) , deflection () as well as other dynamic responses of CFDST under different lateral impact energy. The work mechanic and full range analysis of concrete filled double steel tube under lateral impact were analyzed. The results show that the damage of CFDST with fixed boundary condition under lateral impact is in ductile manner. Analyzed the whole process of the dynamic response basically , laid the foundation for further parametric analysis and practical calculation method.

Effective Prestressing Force Testing Method of External Prestressed Bridge Based on Frequency Method

2013 ◽  
Vol 303-306 ◽  
pp. 363-366
Author(s):  
Han Bing Liu ◽  
Long Lin Wang ◽  
Guo Jin Tan ◽  
Yong Chun Cheng
Keyword(s):  
Boundary Condition ◽  
Natural Frequencies ◽  
Frequency Method ◽  
Fixed Boundary ◽  
Relative Variance ◽  
Testing Method ◽  
Prestressing Force ◽  
Practical Project ◽  
Fixed Boundary Condition ◽  
Hinged Support

A practical project is taken for the example to analyze the application of frequency method in the effective prestress test of external prestressed bridge. In the process of solving the dynamic differential equation of tension cable, the effects of boundary conditions on the natural frequencies of external prestressed tendons are analyzed. The analysis results show that the fundamental frequency of the prestressed tendons under fixed boundary condition is higher than that under hinged-support support boundary condition, and the relative variance decreases with the increase of tensioning force. With the same tensioning force, the relative variance decreases with the increase of cable length. In the practical test, only the upper and lower bound limits can be obtained according to the measured prestressed tendon frequencies, while the real effective prestress values are between them. For external prestressed tendons, a kind of short tension cable, the frequency method can produce certain error in calculating the effective prestress.

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