Numerical analysis of the features of limiting state of welded pipeline elements under ultra-low-cycle loading

2021 ◽  
Vol 2021 (1) ◽  
pp. 32-37
Author(s):  
O.V. Makhenko ◽  
◽  
O.S. Milenin ◽  
O.A. Velikoivanenko ◽  
G.P. Rozynka ◽  
...  
Keyword(s):  
Numerical Analysis ◽  
Limiting State ◽  
Cycle Loading

Numerical analysis of the features of limiting state of welded pipeline elements under ultra-low-cycle loading conditions

2021 ◽  
Vol 2021 (1) ◽  
pp. 29-34
Author(s):  
O.V. Makhnenko ◽  
◽  
O.S. Milenin ◽  
O.A. Velykoivanenko ◽  
G.P. Rozynka ◽  
...  
Keyword(s):  
Numerical Analysis ◽  
Loading Conditions ◽  
Limiting State ◽  
Cycle Loading

Method of evaluating and predicting the limiting state of heat-resistant alloys under asymmetric high-cycle loading

1979 ◽  
Vol 11 (12) ◽  
pp. 1355-1360
Author(s):  
I. I. Ishchenko ◽  
V. P. Golub ◽  
B. N. Sinaiskii ◽  
A. D. Pogrebnyak
Keyword(s):  
Limiting State ◽  
Heat Resistant ◽  
Cycle Loading

scholarly journals Rating of the limiting state of 20K steel under low-cycle loading using the using the method of LM-hardness

2021 ◽  
Author(s):  
P. Bulakh ◽  
Volodymyr Shvets ◽  
О. Maslo
Keyword(s):  
Residual Life ◽  
Structural Elements ◽  
Structural Element ◽  
Limiting State ◽  
Current State ◽  
Scattered Damage ◽  
Cycle Loading ◽  
Non Destructive ◽  
Degree Of Degradation ◽  
Methods Of Control

In the express diagnostics of the condition of the material of the elements of the structures in operation and the materials for the manufacture of the responsible elements of the equipment, it is necessary to take into account the current damage. At the same time, non-destructive methods of control are more relevant, which allow to assess the level of scattered damage in the material and the degree of degradation of its structure of the metal. Another important factor in controlling the current state of the material is the assessment of the residual life of the structural element under operating loads. This paper presents the results of research on the application of the non-destructive method of LM-hardness in assessing the characteristics of the limiting state of the material of real structural elements operating under low-cycle load.

The History of BS 7910 Flaw Interaction Criteria

2011 ◽  
Author(s):  
Bostjan Bezensek ◽  
John Sharples ◽  
Isabel Hadley ◽  
Henryk Pisarski
Keyword(s):  
Experimental Data ◽  
Numerical Analysis ◽  
Limiting State ◽  
History Of ◽  
The Subject

Assessment of flaws and flaw-like indications in engineering components is commonly performed using fitness for service procedures such as the BS 7910 to demonstrate margins for continued operation or to find a limiting state. An individual or multiple flaw indications may be found in a component as a result of fabrication or degradation during operation. Most fitness for service codes provide guidance for assessment of multiple flaws. This consists of simplifying the actual indications into flaws more amenable to analysis using engineering criteria. The subject of this paper is the flaw interaction criteria used by the BS 7910 procedure. The criteria have been refined several times since the 1980 version of the BS 7910 predecessor document PD 6493. This paper will summarise the changes and provide plausible explanations to the changes supported by the experimental data and numerical analysis. A proposed way forward for the 2012 edition of BS 7910 flaw interaction and characterisation will conclude the paper.

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