scholarly journals Conditions of appearance of the topological defects of optical indicatrix orientation in the glasses with residual stresses: Movement of the defects under application of external mechanical stress to CaB4O7 glasses

2016 ◽  
Vol 17 (2) ◽  
pp. 65 ◽  
Author(s):  
Yu Vasylkiv ◽  
T Kryvyy ◽  
I Skab ◽  
R Vlokh
Keyword(s):  
Residual Stresses ◽  
Mechanical Stress ◽  
Topological Defects ◽  
Optical Indicatrix

Non-Destructive Measurement of Residual Stresses by an Ultrasonic Method

2013 ◽  
Author(s):  
Jacob Kleiman ◽  
Yuri Kudryavtsev ◽  
Volodimir Smilenko
Keyword(s):  
Wave Propagation ◽  
Residual Stresses ◽  
Elastic Wave ◽  
Mechanical Stress ◽  
Ultrasonic Method ◽  
Non Destructive Evaluation ◽  
Acoustic Elasticity ◽  
Destructive Measurement ◽  
Non Destructive ◽  
Applied Stresses

An ultrasonic computerized complex for measurement of residual and applied stresses UltraMARS® was recently introduced. Average through thickness stresses can be measured based on the acoustic-elasticity effect, according to which the velocity of elastic wave propagation in solids is dependent on the mechanical stress. The system was used successfully in numerous applications proving to be a reliable, fast and economical way to evaluate residual and applied stresses in materials and structures. The newly developed complex was used in a number of applications that called for non-destructive evaluation of stresses. Examples of such applications will be discussed in the paper. The system was further developed to allow for measurement of subsurface and surface stresses in structural materials and made of them structures.

scholarly journals Configuration of ripple domains and their topological defects formed under local mechanical stress on hexagonal monolayer graphene

2015 ◽  
Vol 5 (1) ◽  
Author(s):  
Yeonggu Park ◽  
Jin Sik Choi ◽  
Taekjib Choi ◽  
Mi Jung Lee ◽  
Quanxi Jia ◽  
...  
Keyword(s):  
Mechanical Stress ◽  
Topological Defects ◽  
Monolayer Graphene

scholarly journals Mechanical stress relaxation in molecular self-assembly

Soft Matter ◽  
2019 ◽  
Vol 15 (30) ◽  
pp. 6180-6189
Author(s):  
Lucas Menou ◽  
Martin Castelnovo
Keyword(s):  
Stress Relaxation ◽  
Mechanical Stress ◽  
Self Assembly ◽  
Thin Shell ◽  
Topological Defects ◽  
Curved Substrate

We propose in this work a quantitative mechanism for the phenomenon of molecular self-assembly on a curved substrate, which leads to the spontaneous inclusion of topological defects in the growing bidimensional crystal, by using standard thin shell elasticity.

Isolating the effect of residual stresses on coating wear by a mechanical stress relaxation technique

2017 ◽  
Vol 638 ◽  
pp. 159-166 ◽  
Author(s):  
Bernd Vierneusel ◽  
Lisa Benker ◽  
Stephan Tremmel ◽  
Mathias Göken ◽  
Benoit Merle
Keyword(s):  
Stress Relaxation ◽  
Residual Stresses ◽  
Mechanical Stress ◽  
Relaxation Technique
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