Stress formation in frontal hardening of composites

1986 ◽  
Vol 21 (6) ◽  
pp. 747-752
Author(s):  
R. A. Turusov ◽  
V. V. Metlov
Keyword(s):  
Stress Formation ◽  
Frontal Hardening

S136 Operational Residual Stress Formation in Vibration-Loaded Rolling Contact

2008 ◽  
Vol 23 (2) ◽  
pp. 190-190 ◽  
Author(s):  
J. Gegner ◽  
W. Nierlich
Keyword(s):  
Residual Stress ◽  
Rolling Contact ◽  
Stress Formation

Stress formation during heating in supercritical drying

2001 ◽  
Vol 279 (2-3) ◽  
pp. 110-118 ◽  
Author(s):  
Betul Unlusu ◽  
Sermin G. Sunol ◽  
Aydin K. Sunol
Keyword(s):  
Supercritical Drying ◽  
Stress Formation

Investigation of sustainability of lubricated journal bearing under relevant design parameters

2018 ◽  
Vol 70 (4) ◽  
pp. 789-804 ◽  
Author(s):  
M.M. Shahin ◽  
Mohammad Asaduzzaman Chowdhury ◽  
Md. Arefin Kowser ◽  
Uttam Kumar Debnath ◽  
M.H. Monir
Keyword(s):  
Aspect Ratio ◽  
Elastic Strain ◽  
Journal Bearing ◽  
Design Parameters ◽  
Content Type ◽  
Computational Fluid Dynamics Cfd ◽  
Stress Formation ◽  
Bearing Design ◽  
The Stability ◽  
Bearing Friction

Purpose The purposes of the present study are to ensure higher sustainability of journal bearings under different applied loads and to observe bearing performances such as elastic strain, total deformation and stress formation. Design/methodology/approach A journal bearing test rig was used to determine the effect of the applied load on the bearing friction, film thickness, lubricant film pressure, etc. A steady-state analysis was performed to obtain the bearing performance. Findings An efficient aspect ratio (L/D) range was obtained to increase the durability or the stability of the bearing while the bearing is in the working condition by using SAE 5W-30 oil. The results from the study were compared with previous studies in which different types of oil and water, such as Newtonian fluid (NF), magnetorheological fluid (MRF) and nonmagnetorheological fluid (NMRF), were used as the lubricant. To ensure a preferable aspect ratio range (0.25-0.50), a computational fluid dynamics (CFD) analysis was conducted by ANSYS; the results show a lower elastic strain and deformation within the preferable aspect ratio (0.25-0.50) rather than a higher aspect ratio using the SAE 5W-30 oil. Originality/value It is expected that the findings of this study will contribute to the improvement of the bearing design and the bearing lubricating system.

Influence of Heat Treatment on Residual Stress Formation in the Wear-Resistant Steel 60–Steel 15–Steel 60 Bimetal Material

2021 ◽  
Vol 12 (1) ◽  
pp. 5-9
Author(s):  
N. N. Sergeev ◽  
A. N. Sergeev ◽  
S. N. Kutepov ◽  
A. E. Gvozdev ◽  
A. G. Kolmakov ◽  
...  
Keyword(s):  
Heat Treatment ◽  
Residual Stress ◽  
Resistant Steel ◽  
Wear Resistant ◽  
Stress Formation

Simultaneous Heat and Moisture Transfer with Hygrostrain-Stress Formation in Food Undergoing Drying

1994 ◽  
pp. 418-420
Author(s):  
K. Hayakawa ◽  
T. Tsukada ◽  
T. Furuta ◽  
N. Sakai
Keyword(s):  
Moisture Transfer ◽  
Heat And Moisture Transfer ◽  
Stress Formation ◽  
Heat And Moisture ◽  
Simultaneous Heat

scholarly journals COMPUTATIONAL MICROSTRUCTURE-BASED ANALYSIS OF RESIDUAL STRESS EVOLUTION IN METAL-MATRIX COMPOSITE MATERIALS DURING THERMOMECHANICAL LOADING

2021 ◽  
Vol 19 (2) ◽  
pp. 241
Author(s):  
Ruslan Balokhonov ◽  
Varvara Romanova ◽  
Eugen Schwab ◽  
Aleksandr Zemlianov ◽  
Eugene Evtushenko
Keyword(s):  
Residual Stress ◽  
Metal Matrix ◽  
Spatial Scales ◽  
Three Dimensional ◽  
Matrix Composites ◽  
Two Phase ◽  
Irregular Shapes ◽  
The Matrix ◽  
Stress Formation ◽  
Mechanical Fragmentation

A technique for computer simulation of three-dimensional structures of materials with reinforcing particles of complex irregular shapes observed in the experiments is proposed, which assumes scale invariance of the natural mechanical fragmentation. Two-phase structures of metal-matrix composites and coatings of different spatial scales are created, with the particles randomly distributed over the matrix and coating computational domains. Using the titanium carbide reinforcing particle embedded into the aluminum as an example, plastic strain localization and residual stress formation along the matrix-particle interface are numerically investigated during cooling followed by compression or tension of the composite. A detailed analysis is performed to evaluate the residual stress concentration in local regions of bulk tension formed under all-round and uniaxial compression of the composite due to the concave and convex interfacial asperities.

Residual Stress Formation in Laser Treated Surfaces

1990 ◽  
pp. 532-537 ◽  
Author(s):  
M. Roth ◽  
R. Hauert ◽  
A. Frenk ◽  
M. Pierantoni ◽  
E. Blank
Keyword(s):  
Residual Stress ◽  
Stress Formation

Features of professional stress formation in the environment of nursing staff

2021 ◽  
pp. 19-28
Author(s):  
Marina Nikolaevna Tsepaeva ◽  
Svetlana Viktorovna Archpova
Keyword(s):  
Occupational Stress ◽  
Nursing Staff ◽  
Direct Influence ◽  
Coping With Stress ◽  
Professional Activities ◽  
Medical Experience ◽  
Professional Stress ◽  
The Social ◽  
Stress Formation ◽  
Work Done

The aim of the study is to assess the severity of occupational stress among the nursing staff of the polyclinic of the SBHI SMKC FMBA of Russia. Results. The assessment of the level and nature, strength and frequency of professional stress of nurses of the polyclinic was carried out, typical and subjectively significant causes of stress in the professional activities of specialists were identified. Conclusion. Coping strategies for coping with stress by nursing staff have been determined. As a result of the work done, it was found that occupational stress among the nursing staff of the polyclinic is a significant problem and needs to be taken appropriate measures. It was found that the development of stress is influenced by such factors as medical experience and the specifics of work. This problem seems to be very relevant in connection with the direct influence of stress on health, mental stability and professionalism of nurses. The focus of the problem of professional stress is the correspondence or inconsistency of the potential capabilities of the professional and the social conditions of his activities.

Culture-related specific psychiatric syndromes

2012 ◽  
pp. 979-986
Author(s):  
Wen-Shing Tseng
Keyword(s):  
Psychiatric Disorder ◽  
Psychiatric Disorders ◽  
Psychological Factors ◽  
Bipolar Disorders ◽  
Cultural Factors ◽  
Adjustment Disorders ◽  
Formation Reaction ◽  
Conversion Disorders ◽  
Stress Formation ◽  
Minor Psychiatric Disorders

In certain ways, all psychiatric disorders are more or less influenced by cultural factors, in addition to biological and psychological factors, for their occurrence and manifestation. ‘Major’ psychiatric disorders (such as schizophrenia or bipolar disorders) are more determined by biological factors and relatively less by psychological and cultural factors, but ‘minor’ psychiatric disorders (such as anxiety disorders, conversion disorders, or adjustment disorders) are more subject to psychological causes as well as cultural factors. In addition to this, there are groups of psychiatric disorders that are heavily related to and influenced by cultural factors, and therefore addressed as culture-related specific psychiatric syndromes. Even though the encounter of culture-related specific psychiatric disorder in our daily psychiatric practice is relatively rare, the purpose of examining such specific syndromes has its significant purpose and implications. Through such unique examples, it helps us to appreciate the cultural attribution to the stress formation, reaction pattern, symptom manifestation, occurrence of frequency of disorders, and reaction to the disorders. It also concerns how to work on therapy for the disorder by complying patient’s cultural background.

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