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논문 기본 정보

자료유형
학술저널
저자정보
Kyeong min Kim (Yonsei University) Ilkwang Jang (Yonsei University) Yong Hoon Jang (Yonsei University)
저널정보
한국트라이볼로지학회 Tribology and Lubricants Tribology and Lubricants 제40권 제6호
발행연도
2024.12
수록면
251 - 258 (8page)

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초록· 키워드

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This study investigates the contact behavior of a long beam interacting with an elastic foundation under the influence of surface effects and adhesion forces. Using the Bernoulli-Euler beam theory and energy-based analysis, the research examines how surface residual stress and adhesion energy affect the beam's deformation and contact interaction. The analysis involves deriving governing equations for the beam's deflection in contact and separation regions, while the equilibrium configuration is determined by minimizing the total potential energy. This energy includes elastic strain, interface effects, and external work, enabling the determination of the beam's separation length and deformation profile. The results indicate that surface residual stress significantly reduces the sensitivity of the separation length to lifting forces due to increased stiffness at the contact interface. Conversely, when adhesion forces dominate, the separation length becomes more responsive to lifting forces. These contrasting effects underscore the interplay between surface stress and adhesion in determining the mechanical response of the beam. The findings contribute to a deeper understanding of microscale contact mechanics and provide essential insights for the design and optimization of MEMS and NEMS devices, where surface and adhesive forces critically influence performance.

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Abstract
1. Introduction
2. Statement of the problem
3. Governing Equation with Surface Stress Effect
4. Nondimensional Formulations
5. Results and Discussion
6. Conclusions
References

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