Internal geometry of hadron resonances

1993 ◽  
Vol 32 (11) ◽  
pp. 1999-2004 ◽  
Author(s):  
S. Bruce ◽  
P. Salgado
Keyword(s):  
Internal Geometry

Prediction of internal geometry and tensile behavior of 3D woven solid structures by mathematical coding

2021 ◽  
pp. 152808372110013
Author(s):  
Vivek R Jayan ◽  
Lekhani Tripathi ◽  
Promoda Kumar Behera ◽  
Michal Petru ◽  
BK Behera
Keyword(s):  
Volume Fraction ◽  
Three Dimensional ◽  
Areal Density ◽  
Woven Fabrics ◽  
Tensile Behavior ◽  
Geometrical Parameters ◽  
Fiber Volume ◽  
Acceptable Error ◽  
Internal Geometry ◽  
Unit Cells

The internal geometry of composite material is one of the most important factors that influence its performance and service life. A new approach is proposed for the prediction of internal geometry and tensile behavior of the 3 D (three dimensional) woven fabrics by creating the unit cell using mathematical coding. In many technical applications, textile materials are subjected to rates of loading or straining that may be much greater in magnitude than the regular household applications of these materials. The main aim of this study is to provide a generalized method for all the structures. By mathematical coding, unit cells of 3 D woven orthogonal, warp interlock and angle interlock structures have been created. The study then focuses on developing code to analyze the geometrical parameters of the fabric like fabric thickness, areal density, and fiber volume fraction. Then, the tensile behavior of the coded 3 D structures is studied in Ansys platform and the results are compared with experimental values for authentication of geometrical parameters as well as for tensile behavior. The results show that the mathematical coding approach is a more efficient modeling technique with an acceptable error percentage.

Influence of milling container internal geometry on the mechanical alloying process of the Fe75Si15B10 system

2006 ◽  
Vol 429 (1-2) ◽  
pp. 261-265 ◽  
Author(s):  
V.A. Peña Rodríguez ◽  
J. Quispe Marcatoma ◽  
J.M. Agüero Andrade ◽  
E.M. Baggio-Saitovitch ◽  
A. Caytueros Villegas ◽  
...  
Keyword(s):  
Mechanical Alloying ◽  
Internal Geometry

Acoustic wave frequency filtering in constant total length phononic crystals of Al/Pb multilayer

2021 ◽  
Author(s):  
Chittaranjan Nayak ◽  
Mehdi Solaimani ◽  
Alireza Aghajamali ◽  
Arafa H. Aly
Keyword(s):  
Acoustic Wave ◽  
Phononic Crystal ◽  
Phononic Crystals ◽  
Geometrical Parameters ◽  
One Dimensional ◽  
Internal Geometry ◽  
Total Length ◽  
Acoustic Filters ◽  
System Length ◽  
Phononic Band Gaps

In this study, we have scrutinized the frequency gap generation by changing the geometrical parameters of a one-dimensional phononic crystal. For this purpose, we have calculated the transmission coefficient of an incident acoustic wave by using the transfer matrix method. We have retained and fixed the total length of the system and changed the system internal geometry not to increase the system length too much. Another reason was to adjust the phononic band gaps and get the desired transmission properties by finding the optimum internal geometry without increasing or decreasing the total length of phononic crystals. In addition, we also propose few structures with the opportunity of applications in acoustical devices such as sonic reflectors. Our results can also be of high interest to design acoustic filters in the case that transmission of certain frequencies is necessary.

Tomography of objects with a priori known internal geometry

1998 ◽  
Vol 14 (6) ◽  
pp. 1469-1480 ◽  
Author(s):  
T E Gureyev ◽  
R Evans
Keyword(s):  
A Priori ◽  
Internal Geometry

scholarly journals Mathematical Modelling of Internal Geometry and Deformability of Woven Preforms

2003 ◽  
Vol 6 (3-4) ◽  
pp. 413-442 ◽  
Author(s):  
Stephan V Lomov ◽  
Thanh Truong Chi ◽  
Ignaas Verpoest ◽  
Teo Peters ◽  
Dirk roose ◽  
...  
Keyword(s):  
Mathematical Modelling ◽  
Internal Geometry
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