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Conclusions on the fourth chapter

1. By results of numerical experiments presence in physically nonlinear flat envelopments, plates and girders of a variable thickness is revealed, that, leads essential, as to quantitative, and to qualitative changes in parametres of the is intense-deformed condition of these designs;

2.

From the analysis of results follows, that with parametre growth v girders and plates, with rigidly restrained edges, deflections in a quarter decrease, and in the centre increase. The most serious qualitative changes occur in epjurah moments of flexion: with growth proishodit redistribution of moments of flexion from the central part to rigidly restrained edges in this connection at great values v the central part as girders, and plates there is practically bezmomentnaja a working area;

3. At the analysis of results for girders, with sharnirno opertymi edges, it is revealed, that with parametre growth proishodit essential increase
Deflections in the girder centre, thus qualitative changes in epjurah deflections are insignificant. Also from the analysis of results of numerical experiments follows, that change of parametre of a relative thickness prakticheski does not influence moments of flexion in sharnirno opertoj to a girder;

4. At the analysis of results for plates, sharnirno opertyh on all contour, it is revealed, that with parametre growth progiby in a plate quarter decrease, and in the centre increase. From the analysis of results of numerical experiments follows, that parametre growth privodit to essential qualitative changes in epjurah moments of flexion. Also it is necessary to notice, that at great values of parametre proishodit gradual redistribution of peak values of moments of flexion from the plate centre in its quarter;

5. From the analysis of results of numerical experiments follows, that to parametre growth v to a flat envelopment there is a redistribution of peak values of deflections from a quarter in its centre;

6. With parametre growth izgibajushchie the moments in quarters of a flat envelopment decrease, thus peak values of moments of flexion are smoothly displaced to a basic working area;

7. Presence of a variable thickness in a flat envelopment leads to that in its central part with parametre growth obrazuetsja practically bezmomentnaja a working area. Also it is necessary to tell, that with increase in skewness of an envelopment a parametre value λ at which moments of flexion in the envelopment centre accept values close to zero, decreases;

8. Change of parametre of a relative thickness prakticheski does not influence distribution of function of efforts;

9. With growth of parametre of a relative thickness of value of axial thrusts in a quarter increase, and peak values are smoothly displaced in a direction of a basic working area, however with increase in skewness of an envelopment influence of parametre of a variable thickness on axial thrusts decreases.

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A source: MISHCHENKO Roman Viktorovich. CALCULATION of NON-UNIFORM PHYSICALLY NONLINEAR THIN-WALL SPATIAL DESIGNS of the VARIABLE THICKNESS. The DISSERTATION on competition of a scientific degree of a Cand.Tech.Sci. Saratov - 2018. 2018

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