COMPENSATING ROLE OF SELF-EQUILIBRATED STRESS FIELDS IN CONSTRUCTING NON-SINGULAR SOLUTIONS USING A NON-EUCLIDEAN CONTINUUM MODEL FOR AN INCOMPRESSIBLE SPHERE

2021 ◽  
Vol 62 (5) ◽  
pp. 736-741
Author(s):  
M. A. Guzev ◽  
W. Liu ◽  
Ch. Qi ◽  
E. P. Riabokon
Keyword(s):  
Continuum Model ◽  
Stress Fields ◽  
Singular Solutions

scholarly journals The role of local plasticity in the redistribution of stress fields caused by in-service fatigue overloads

2020 ◽  
Vol 28 ◽  
pp. 2386-2389
Author(s):  
Jesús Toribio ◽  
Miguel Lorenzo ◽  
Diego Vergara ◽  
Leticia Aguado
Keyword(s):  
Stress Fields ◽  
Local Plasticity

Role of equilibrium and non-equilibrium grain boundary stress fields on dislocation transmission

2021 ◽  
Author(s):  
Darshan Bamney ◽  
Laurent Capolungo ◽  
Douglas E. Spearot
Keyword(s):  
Grain Boundary ◽  
Stress Fields ◽  
Boundary Stress ◽  
Non Equilibrium

A Study of the Role of Heterogeneities in the Initial Stages of Corrosion of Glazes Using Dynamic Imaging Microellipsometry (DIM)

1996 ◽  
Vol 462 ◽  
Author(s):  
B.E. McCarthy ◽  
P.B. Vandiver ◽  
J. Kruger
Keyword(s):  
Residual Stress ◽  
Dynamic Imaging ◽  
Corrosion Process ◽  
Ceramic Production ◽  
Stress Fields ◽  
Process Dynamic ◽  
Glazed Ceramic ◽  
Mechanical Factors

ABSTRACTCommon processes used in glazed ceramic production often result in a glaze with a heterogeneous microstructure. Heterogeneities may be due to residual batch materials, intentionally added colorants and opacifiers and/or the products of devitrification and phase separation. To study the effect of heterogeneities in the corrosion process, dynamic imaging microellipsometry was used in-situ in aqueous solutions to measure spatially and temporally resolved changes in the surface of glasses (model glazes). The measurements showed increased durability near inclusions. Residual stress fields surrounding the heterogeneities influenced the results. Decoupling of chemical and mechanical factors causing this increased durability was not possible.

Role of fractal dimension in internal stress fields of Ni3Fe single crystals

1995 ◽  
Vol 38 (1) ◽  
pp. 27-30
Author(s):  
Yu. A. Abzaev ◽  
A. V. Paul' ◽  
A. I. Potekaev
Keyword(s):  
Fractal Dimension ◽  
Internal Stress ◽  
Single Crystals ◽  
Stress Fields

A Continuum Model for the Role of Fibroblast Contact Guidance in Wound Contraction

1997 ◽  
pp. 159-164 ◽  
Author(s):  
Robert T. Tranquillo ◽  
Victor H. Barocas
Keyword(s):  
Continuum Model ◽  
Wound Contraction ◽  
Contact Guidance

Modeling the role of hydrogen interstitial concentration on internal stress fields in iron matrix

2010 ◽  
Vol 45 (6) ◽  
pp. 1683-1687 ◽  
Author(s):  
Mehmet Can Uslu ◽  
Demircan Canadinc
Keyword(s):  
Internal Stress ◽  
Stress Fields ◽  
Iron Matrix ◽  
Interstitial Concentration

scholarly journals On the Role of Local Grain Interactions on Twin Nucleation and Texture Evolution in Hexagonal Materials

2011 ◽  
Vol 702-703 ◽  
pp. 265-268 ◽  
Author(s):  
Anand K. Kanjarla ◽  
Irene J. Beyerlein ◽  
Ricardo A. Lebensohn ◽  
Carlos Tomé
Keyword(s):  
Grain Boundaries ◽  
Texture Evolution ◽  
Probability Model ◽  
Local Stress ◽  
Stress Fields ◽  
Full Field ◽  
Twin Nucleation ◽  
Deformation Twins ◽  
Hexagonal Materials

Texture evolution in plastically deformed HCP metals is strongly influenced by the nucleation and growth of deformation twins and twin variant selection. Statistically based EBSD analyses of deformed microstructures in HCP metals indicate that the nucleation of deformation twins depends on, among other factors, the local stress fields arising from neighboring grain interactions at grain boundaries [1]. Inspired by these findings a probability model for twin nucleation was developed [2,3], based on the activation of defect sources statistically occurring in grain boundaries. This nucleation model was implemented in a Visco-Plastic Self-Consistent (VPSC) code. Because the latter is based on an Effective Medium assumption and the inclusion formalism, it only provides average stress values in the grains, and the nature of local stress fields at grain boundaries had to be considered in a heuristic manner. In order to have better insight on the effect of local textures on twin nucleation, in this work we employ a viscoplastic full field Fast Fourier Transform (FFT) method as a numerical tool for conducting virtual experiments to study the role of crystal orientation and local neighbor grain interactions on stress localization close to the interfaces and, consequently, on twin nucleation in hexagonal materials, such as Zr and Mg.

scholarly journals Assessing the role of Ca2+ in skeletal muscle fatigue using a multi-scale continuum model

2019 ◽  
Vol 461 ◽  
pp. 76-83 ◽  
Author(s):  
Mina Karami ◽  
Begoña Calvo ◽  
Hassan Zohoor ◽  
Keikhosrow Firoozbakhsh ◽  
Jorge Grasa
Keyword(s):  
Skeletal Muscle ◽  
Muscle Fatigue ◽  
Continuum Model ◽  
Skeletal Muscle Fatigue ◽  
Multi Scale

Role of an extension of pre-Quaternary age for the evolution of the carbonate massifs in the occidental Betic Cordillera: The case of the Yunquera-Nieves massif (southern Spain)

2002 ◽  
Vol 173 (5) ◽  
pp. 437-448 ◽  
Author(s):  
Séverin Pistre ◽  
Cristina Liñán ◽  
Bartolomé Andreo ◽  
Francisco Carrasco ◽  
Claude Drogue ◽  
...  
Keyword(s):  
Simultaneous Analysis ◽  
Betic Cordillera ◽  
Southern Spain ◽  
Stress Fields ◽  
Hydrodynamic Properties ◽  
Structural Position ◽  
Fracture Geometry ◽  
Tectonic Events ◽  
Geodynamic Models

Abstract A simultaneous analysis of the fracture geometry and paleo-stress fields of the karstic Yunquera-Nieves massif i n southern Spain (Málaga Province) has been carried out with microtectonic stations. It reveals polyphased t ec -tonics linked to the structural position of this carbonate domain in the western Betic Cordillera. Among the tectonic regimes described in this domain appears a distensive stage with a radial trend probably of post-Tortonian to Quaternary age. Todate, it has seldom been described and is absent from geodynamic models though it seems to have had a regional importance. Furthermore, it played a major role for the acquisition of the hydrodynamic properties of t he aquifer and its karstogenesis. This stage opened all fractures and allowed t he development of karstic drains with NW-SE and N-S directions. Finally, the karstic network was shaped by more recent climatic and tectonic events.

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