No 4 (2012)

In the paper, possibility of visualization of process of formation of surfaces in a dynamic mode by creation of mini-films which can essentially help students at independent studying of the subject "Surfaces" is considered. Mini-films can be demonstrated to students during lecture.

There is the analysis of generatrix slope angle influence on the mode of deformation of thin elastic open helicoidal shells which was calculated by the method of small parameter with

Разработана методика решения физически нелинейной пространственной задачи теории упругости в перемещениях. Представлено приложение данной методики к расчету плит, взаимодействующих со средой, имеющих нелинейную диаграмму деформирования. Приведен пример расчета плиты

Numerical technique for research of stress-strain behavior and eccentrically compressed reinforced concrete rods bearing resistance is presented in the article. This technique developed by Baikov V.N. et al uses complete diagram of concrete deformation during the compression in terms of fifth-power polynomial and with the consideration of elastic-plastic performance of reinforcement. The developed method allows making "Load-Hogging" diagram in order to calculate carrying capacity. It is established that while using the complete diagram for concrete "Load-Hogging" correlation has the descending curve and is similar to the deformation diagram of concrete during compression.

The new approach to rectangular column modeling in finite element analysis of building structures is suggested. Each column is presented by the set of the volume 8-node elements with arbitrary discretization on the cross section and on the height of the column. The inner nodes of the finite element mesh are excluded sequentially layer by layer, thus reducing the stiffness matrix and other characteristics of the column to its top and bottom cross sections

The expansive soils are some soils able to move after loading or water movement; thus, precocious degradations are observed on the structures that are built on them. The present study based on the Sèhouè-Massi section of the Akassato-Bohicon road that is a part of the RNIE N°2 in Benin. The previous work done on the soil of this road section showed that it is on aexpansive clay formation. After had analyzed the auscultation and the geotechnical study results, a road inverse structure appropriate to the traffic was proposed

If one wants to make strength analysis of rubber membrane having large deformation, he must know the elastic potential. Having used potentials of Mooney and K.F. Chernyh, the authors defined the constants of these potentials with the help of the experiments