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- Article name
- Definition of a refined calculated dependence and correlation of experimental and computed values of critical loads of boron/aluminum shells, imparting stability, with layers longitudinally-annularly laid down in a bundle
- Authors
- KALASHNIKOV S. T., , ofpat@mail.ru; sergiot@bk.ru, South Urals Federal Research Centre of Mineralogy and Geoecology of the Urals Branch of the RAS, Miass, Chelyabinsk Region, Russia
BOLTAYEV P. I., , ofpat@mail., South Urals Federal Research Centre of Mineralogy and Geoecology of the Urals Branch of the RAS, Miass, Chelyabinsk Region, Russia
- Keywords
- refined calculated dependence / critical load / boron/aluminum shell / correction function / coefficient of agreement K / bundle of the shell thickness / longitudinally-annularly laying down
- Year
- 2022 Issue 4 Pages 3 - 5
- Code EDN
- ADRYGQ
- Code DOI
- 10.52190/2073-2562_2022_4_3
- Abstract
- The paper presents the definition of a refined calculated dependence of the load-carrying capacity of boron/aluminum shells, imparting stability, with longitudinally-annularly laid down unidirectional layers. Experimental and calculated values of critical loads of the above mentioned boron/aluminum shells are correlated. In so doing, it is shown that an earlier developed methodology used to correlate calculated and experimental values of the load-carrying capacity of layered composite shells works properly also for boron/aluminum shells, the thickness of which bundles is longitudinally-annularly set up. The fact is proved by statistical processing under K, that represents a ratio of a critical experimental load to a calculated one. The scatter of experimental and calculated data in the ratio is similarly low as for shells, which bundle is annularly set up. The application of the refined calculated dependence lowers statistical characteristics of the coefficient K and allows a designer-analyst define a safety coefficient of structures of flight vehicles more reasonably.
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