Effect of geometry on stress relaxation in InAs∕GaAs rectangular nanomesas: Multimillion-atom molecular dynamics simulations

2005 ◽  
Vol 98 (11) ◽  
pp. 114313 ◽  
Author(s):  
Maxim A. Makeev ◽  
Rajiv K. Kalia ◽  
Aiichiro Nakano ◽  
Priya Vashishta ◽  
Anupam Madhukar
Keyword(s):  
Molecular Dynamics ◽  
Stress Relaxation ◽  
Molecular Dynamics Simulations ◽  
Dynamics Simulations

Molecular-dynamics simulations of stress relaxation in metals and polymers

1994 ◽  
Vol 49 (10) ◽  
pp. 6494-6500 ◽  
Author(s):  
Slawomir Blonski ◽  
Witold Brostow ◽  
Josef Kuba´t
Keyword(s):  
Molecular Dynamics ◽  
Stress Relaxation ◽  
Molecular Dynamics Simulations ◽  
Dynamics Simulations

scholarly journals Stretch/orientation Induced Acceleration in Stress Relaxation in Coarse-grained Molecular Dynamics Simulations

2013 ◽  
Vol 41 (1) ◽  
pp. 35-37 ◽  
Author(s):  
Yuichi Masubuchi ◽  
Takatoshi Yaoita ◽  
Yumi Matsumiya ◽  
Hiroshi Watanabe ◽  
Giovanni Ianniruberto ◽  
...  
Keyword(s):  
Molecular Dynamics ◽  
Stress Relaxation ◽  
Molecular Dynamics Simulations ◽  
Coarse Grained ◽  
Dynamics Simulations ◽  
Stretch Orientation ◽  
Coarse Grained Molecular Dynamics

scholarly journals Confinement-induced self-organization in growing bacterial colonies

2021 ◽  
Vol 7 (4) ◽  
pp. eabc8685
Author(s):  
Zhihong You ◽  
Daniel J. G. Pearce ◽  
Luca Giomi
Keyword(s):  
Molecular Dynamics ◽  
Stress Relaxation ◽  
Molecular Dynamics Simulations ◽  
Mechanical Response ◽  
Self Organization ◽  
Global Alignment ◽  
Normal Stresses ◽  
Continuous Modeling ◽  
Dynamics Simulations ◽  
Short Time

We investigate the emergence of global alignment in colonies of dividing rod-shaped cells under confinement. Using molecular dynamics simulations and continuous modeling, we demonstrate that geometrical anisotropies in the confining environment give rise to an imbalance in the normal stresses, which, in turn, drives a collective rearrangement of the cells. This behavior crucially relies on the colony’s solid-like mechanical response at short time scales and can be recovered within the framework of active hydrodynamics upon modeling bacterial colonies as growing viscoelastic gels characterized by Maxwell-like stress relaxation.

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