Elastocapillary Deformation of Soft Matter Beams on Elastic Substrate

YU Huiting; WANG Yu; HUANG Zaixing

doi:10.21656/1000-0887.450028

Volume 45 Issue 12

Dec. 2024

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YU Huiting, WANG Yu, HUANG Zaixing. Elastocapillary Deformation of Soft Matter Beams on Elastic Substrate[J]. Applied Mathematics and Mechanics, 2024, 45(12): 1530-1540. doi: 10.21656/1000-0887.450028

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Elastocapillary Deformation of Soft Matter Beams on Elastic Substrate

doi: 10.21656/1000-0887.450028

State Key Laboratory of Mechanics and Control for Aerospace Structures,Nanjing University of Aeronautics and Astronautics, Nanjing 210016, P.R.China

Funds:

The National Science Foundation of China(11172130；12072145)

Received Date: 2024-02-02
Rev Recd Date: 2024-03-11

Available Online: 2024-12-27

Abstract

Abstract

With droplets on the surface of soft matter or micro/nanostructures, wetting-induced elastocapillary deformation should be considered. Based on a new wetting equation, the relationship between the droplet spreading radius and its surface curvature was determined, and the necessary conditions for the droplet to hold the spherical cap without the influence of gravity were obtained. Combined with the Winkler foundation model, the elastocapillary deformation of soft material microbeam on elastic substrate was calculated. The analytical solution for the deflection of the microbeam was given. With polystyrene and polyethylene beams as examples, the influences of the droplet spreading radius, the beam material elastic modulus and the Winkler foundation parameter on the microbeam deflections and detachments from the substrate, were analyzed and discussed.
- wetting,
- elastocapillary deformation,
- Winkler foundation model,
- soft matter,
- microbeam

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References(22)

References

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