Modeling of the Stress-Strain State of Thermally Hardened Reinforcement and Its Welded Joints by Microhardness

2022 ◽  
Author(s):  
Ya. Z. Blikharskyy
Keyword(s):  
Welded Joints ◽  
Strain State ◽  
Stress Strain ◽  
Stress Strain State

Development of a Methodology for Model Testing of Utor Welded Joints of a Vertical Cylindrical Tank

2021 ◽  
pp. 21-27
Author(s):  
D.A. Neganov ◽  
◽  
A.E. Zorin ◽  
O.I. Kolesnikov ◽  
G.V. Nesterov ◽  
...  
Keyword(s):  
Welded Joints ◽  
Strain State ◽  
Welded Joint ◽  
Design Parameters ◽  
Cylindrical Tank ◽  
Stress Strain ◽  
The Real ◽  
Stress Strain State ◽  
Hydraulic Machines ◽  
Wide Range

The methodology of laboratory modeling of the loading of utor welded joint of the tank is presented. The methodology is based on testing of the special design sample. It allows under uniaxial tension on the typical servo-hydraulic machines to reproduce in the zone of a utor welded joint the combined action of bending and shear forces, similar to that which occurs during the operation of a vertical cylindrical tank. To assess the distribution of the stress-strain state in the proposed design of the sample under its loading, the finite element modeling was performed in the ANSYS software package. It showed the fundamental correspondence of the stress distribution in the zone of the utor node in the sample and in the real tank. The experimental studies consisted in carrying out tests for the durability of a series of 16 samples loaded with the maximum force in the cycle, causing the calculated stresses in the zone of the welded utor node in the range of 100–200 % from the maximum permissible ones. The obtained results showed that the maximum loaded zone, where the destruction of the samples occurred, is the near-seam zone of the utor welded joint on the inside of the tank. This corresponds to the statistics of the real tank failures. It is established that the developed methodology ensures the possibility of carrying out correct resource tests of the tank utor welded joints. It is also possible to vary the stress-strain state scheme within a wide range in the area of the utor welded joint by changing the design parameters of the test sample. In compliance with the regulated welding technologies and the absence of unacceptable defects in the welded joint, the utor node has a high resource, which significantly exceeding 50 years of the tank operation.

Stress-strain state of compensated and non-compensated welded joints

1999 ◽  
Vol 13 (6) ◽  
pp. 478-481
Author(s):  
R A Musin ◽  
Ya V Lyamin
Keyword(s):  
Welded Joints ◽  
Strain State ◽  
Stress Strain ◽  
Stress Strain State

scholarly journals The stress-strain state determination in pipelines welded joints

2017 ◽  
Vol 0 (16) ◽  
pp. 105-109
Author(s):  
Ольга МиколаЇвна Алексейчук ◽  
Сергій Іванович Трубачев
Keyword(s):  
Welded Joints ◽  
Strain State ◽  
Stress Strain ◽  
Stress Strain State ◽  
State Determination

scholarly journals Investigation of stress-strain state of welded joints of the system TiAl intermetallics

2019 ◽  
Vol 2019 (11) ◽  
pp. 8-11
Author(s):  
L.M. Lobanov ◽  
◽  
E.A. Asnis ◽  
N.V. Piskun ◽  
E.L. Vrzhizhevsky ◽  
...  
Keyword(s):  
Welded Joints ◽  
Strain State ◽  
Stress Strain ◽  
Stress Strain State ◽  
Tial Intermetallics

scholarly journals Simulation of stress-strain state of resistance spot welded joints in NX environment

2021 ◽  
Vol 2032 (1) ◽  
pp. 012140
Author(s):  
A L Fedorov ◽  
S V Mkrtychev ◽  
S Yu Mamushkina
Keyword(s):  
Welded Joints ◽  
Strain State ◽  
Stress Strain ◽  
Resistance Spot ◽  
Stress Strain State ◽  
Spot Welded

scholarly journals Investigation of stress-strain state of welded joints of the system TiAl intermetallics

2019 ◽  
Vol 2019 (11) ◽  
pp. 11-15
Author(s):  
L.M. Lobanov ◽  
◽  
E.A. Asnis ◽  
N.V. Piskun ◽  
E.L. Vrzhizhevsky ◽  
...  
Keyword(s):  
Welded Joints ◽  
Strain State ◽  
Stress Strain ◽  
Stress Strain State ◽  
Tial Intermetallics
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