Photoelasticity, holography, and moire for strain-stress-state studies of NPS, HPS underground and machinery structures: comparative analysis of physical modeling and numerical methods

Author(s):  
G. L. Khesin
Author(s):  
Vladimir Ivanovich Matselya ◽  
Igor Nikolaevich Seelev ◽  
Alexey Valentinovich Lekontsev ◽  
Robert Rafaelevich Khafizov ◽  
Pavel Viktorovich Yakovlev ◽  
...  

The popularity of numerical methods for modeling soil bases determines the increased demand for the accuracy of calculations. The choice of a model that meets the requirements of accuracy of calculations and minimization of costs is determined by comparative analysis of common soil models described in scientific literature and used in calculations of sediments and dynamic effects of buildings (finite element linear elastic, elastic, ideal-plastic, Mora - Coulomb with strengthening, elasto-plastic with strengthening at small deformation). The results have been obtained on test models using finite element method in the environment of PLAXIS 3D and SCAD Office programs. In order to compare results obtained, subject to requirements of the current regulatory documents, a comparative analysis of soils was carried out according to the model of Body of rules 22.13330.2011 "Foundations of buildings and structures". The analysis results were used for choosing an optimal model of soil bases of industrial buildings estimated in earthquake-proof design. It should be noted that the strong and weak points identified for each model justify the choice of the best model for each particular case.


2016 ◽  
Vol 17 (4) ◽  
pp. 625-629
Author(s):  
H.O. Sirenko ◽  
I.A. Mandzyuk ◽  
M.I. Martynyuk ◽  
L.M. Soltys

The comparative analysis of definition of stress state of epoxy compounds by hydrostatic shrinkage and tensometric deformationhas been done. The results of the shrinkage coefficient depending on the selected calculation formula have been shown.


2016 ◽  
Vol 39 (1) ◽  
pp. 58-72 ◽  
Author(s):  
Mojtaba Nedaei ◽  
Abtin Ataei ◽  
Muyiwa Samuel Adaramola ◽  
Alireza Hajiseyed Mirzahosseini ◽  
Morteza Khalaji Assadi ◽  
...  

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