The Stress–Strain State of a Ribbed Cylindrical Shell Interacting with an Elastic Foundation Under Short-Term Loads

2015 ◽  
Vol 51 (1) ◽  
pp. 92-101 ◽  
Author(s):  
Yu. V. Skosarenko
2020 ◽  
Vol 25 (1) ◽  
pp. 236-242
Author(s):  
T.I. Zaitseva ◽  
I.V. Blinova ◽  
A.M. Uzdin

AbstractThe problem of gap estimation for a break of a continuous welded rail is studied. The track is represented as a semi-infinite rod on elastic-based damping. Static and dynamic solutions are obtained. It is shown that during the rail break, the dynamic factor does not exceed 1.5. We derive equations for thermal deformation of the welded rail of jointless track on an elastic foundation in the presence of the insert into the base with another characteristic stiffness. It is shown that the presence of the insertion of up to 20% of the length of the rail, with both large and small stiffness, has a little effect on the stress-strain state (SSS) of the track. The presence of a rigid insert may increase the clearance of an accidental break of the rail, which has a negative effect on traffic safety.


Author(s):  
Sergey B. Kosytsyn ◽  
Vladimir Y. Akulich

The work is aimed at research of the stress-strain state of a cylindrical shell of a tunnel using the non-linear static analysis and construction stage analysis. Research is carried out on the example of determining the stress-strain state of the tubing (shells) of the main line tunnel, constructed using a tunnel powered complex (slurry shield). Based on obtained results, a comparative analysis of the computational models with the corresponding conclusions is presented.


2014 ◽  
Vol 5 (7(71)) ◽  
pp. 4
Author(s):  
Сергій Вікторович Угрімов ◽  
Юрій Михайлович Toрмосов ◽  
Віктор Анатолійович Куценко ◽  
Ігор Володимирович Лебединець

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