Accumulation of scattered damage in constructional materials

1991 ◽  
Vol 27 (1) ◽  
pp. 66-72
Author(s):  
A. L. Uglov
Keyword(s):  
Scattered Damage

Kinetics of accumulation of scattered damage in polycrystalline materials with various grain sizes under small-scale strain conditions

2011 ◽  
Vol 43 (5) ◽  
pp. 506-514 ◽  
Author(s):  
A. A. Lebedev ◽  
V. P. Lamashevskii ◽  
N. R. Muzyka ◽  
V. P. Shvets ◽  
E. V. Efimenko
Keyword(s):  
Polycrystalline Materials ◽  
Small Scale ◽  
Grain Sizes ◽  
Scattered Damage ◽  
Kinetics Of

Critical concentrations of cumulative scattered damage

1995 ◽  
Vol 27 (4) ◽  
pp. 219-224
Author(s):  
S. R. Ignatovich
Keyword(s):  
Critical Concentrations ◽  
Scattered Damage

Scattered Damage Mechanics of Concrete

1991 ◽  
pp. 593-600
Author(s):  
Aleksandr S. Bychkov
Keyword(s):  
Damage Mechanics ◽  
Scattered Damage

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.

scholarly journals DEGRADATION OF THE MAIN GAS PIPELINE MATERIAL AND MECHANISMS OF ITS FRACTURE

2014 ◽  
Vol 20 (6) ◽  
pp. 864-872 ◽  
Author(s):  
Pavlo Maruschak ◽  
Iryna Danyliuk ◽  
Olegas Prentkovskis ◽  
Roman Bishchak ◽  
Andriy Pylypenko ◽  
...  
Keyword(s):  
Mechanical Properties ◽  
Deformation Process ◽  
Pipe Wall ◽  
Gas Pipeline ◽  
Static Deformation ◽  
Term Operation ◽  
Damage And Fracture ◽  
Scattered Damage ◽  
Main Gas Pipeline

The effect of the in-service scattered damage in the pipe wall metal is evaluated, and the effect of hydrogen absorbed by metal on the variation of the structure and mechanical properties of the main gas pipeline after a long-term operation is found. The main regularities in the graded nature of the static deformation process and the effect of hydrogenation on the scattered damage and fracture accumulation are found.

scholarly journals Fatigue fracture criterion of composite materials

2019 ◽  
Vol 488 (5) ◽  
pp. 488-492
Author(s):  
A. R. Arutyunyan
Keyword(s):  
Composite Materials ◽  
Fatigue Strength ◽  
Fatigue Fracture ◽  
Damage Accumulation ◽  
Strength Criterion ◽  
Experimental Results ◽  
Reinforced Plastics ◽  
Damage And Fracture ◽  
Scattered Damage ◽  
The Moment

The first investigations on the fatigue strength of composite materials were carried out on cyclic tension of plastics reinforced by fiberglass. Since that time, intensive studies of fatigue strength of composite materials were begin. The experimental data obtained for different types of composite materials shown, that the fatigue fracture processes are governed by the accumulation of defects of different nature. The main mechanisms that determine the durability of composites is the kinetics of the damaged state development until the final fracture. At the same time, according to the experimental results, the damage accumulation curve of the total damage is defined by increased function of the time (number of loading cycles) until to the moment of macro fracture. In this paper, based on these studies and the conception of scattered damage and fracture, fatigue strength criterion is formulated. Fatigue criterion coefficients are concretized and damage accumulation curves are plotted, which depends on the number cycles and stress level. The comparison with experimental results on fatigue of glass-reinforced plastics and carbon fiber reinforced plastics is given.

Assessment of Scattered Damage in Structural Materials

2019 ◽  
Vol 55 (2) ◽  
pp. 111-121
Author(s):  
R. I. Romanishin ◽  
I. M. Romanishin
Keyword(s):  
Structural Materials ◽  
Scattered Damage

Modeling of scattered damage accumulation kinetics under combined stress

2012 ◽  
Vol 44 (1) ◽  
pp. 20-26 ◽  
Author(s):  
M. I. Bobyr ◽  
O. P. Khalimon ◽  
O. A. Bondarets
Keyword(s):  
Damage Accumulation ◽  
Combined Stress ◽  
Scattered Damage ◽  
Accumulation Kinetics
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