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Published on: January 6, 2023
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Active buckling of pressurized spherical shells: Monte Carlo simulation.
Vipin Agrawal1,2, Vikash Pandey1, Dhrubaditya Mitra1
1Nordita, KTH Royal Institute of Technology and Stockholm University, Hannes Alfvéns väg 12, 106 91 Stockholm, Sweden.
Physical Review. E
|October 18, 2023
Summary
We demonstrate that microscopic elastic shells can be optically controlled to buckle or unbuckle. By manipulating their activity, we can tune their mechanical stability, offering new design possibilities.
Area of Science:
- Physics
- Materials Science
- Mechanical Engineering
Background:
- Pressurized spherical shells are fundamental structures in engineering.
- Understanding shell buckling is crucial for structural integrity and design.
- Thermal equilibrium models do not capture all dynamic behaviors of microscopic shells.
Purpose of the Study:
- To investigate the buckling behavior of pressurized spherical shells driven out of thermal equilibrium.
- To explore the effect of broken detailed balance on shell stability and fluctuations.
- To propose a method for optical control of microscopic elastic shell buckling.
Main Methods:
- Monte Carlo simulations were employed to model shell behavior.
- Detailed balance was explicitly broken to simulate active and sedate states.
- Simulations analyzed the influence of activity on buckling and fluctuation levels.
Main Results:
- Active shells exhibited altered fluctuation dynamics compared to equilibrium shells.
- Shells stable in thermal equilibrium could be induced to buckle when made active.
- Buckled shells could be induced to unbuckle when made sedate.
Conclusions:
- The mechanical stability of microscopic elastic shells is controllable by manipulating their activity.
- Optical control of shell buckling is feasible by adjusting the system's non-equilibrium state.
- This research opens avenues for designing responsive micro-scale elastic structures.
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