Peeling and large deformation of the magneto-responsive slender sheet adhered by a liquid film

IF 2.2 3区工程技术 Q2 MECHANICS Archive of Applied Mechanics Pub Date : 2024-11-29 DOI:10.1007/s00419-024-02726-y

Yizhe Zhu, Gongqi Cao, Xiaoxuan Ding, Shiyang Liu, Yuchen Jin, Jianlin Liu

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Abstract

Intelligent magneto-responsive structures are widely used due to their fast response speed and noncontact control. In this study, the peeling behavior of a slender magneto-responsive sheet under the magnetic field's action is investigated experimentally and theoretically. Firstly, two identical magneto-responsive sheets, with the liquid film adhesion and the absence of the liquid film respectively, are analyzed under the control of a cylindrical magnet. In addition, the peeling process is abstracted via the classical elastica model, and the expression of the potential energy functional is established. The approximate solutions of the deflection and the adhesion length of the magneto-responsive sheets during the peeling process are obtained based on the Rayleigh–Ritz method. The effects of the magnetic field generated by cylindrical magnets and the work of adhesion on the maximum deflection and adhesion length of magneto-responsive sheets are further predicted. The theoretically approximate solution agrees very well with the experimental data. These findings can provide new implications in a wide range of industrial areas, such as medical microsensors and intelligent structures for drug delivery.

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液体薄膜粘附的磁响应薄片的剥离和大变形

智能磁响应结构因其快速响应和非接触控制而得到广泛应用。本研究通过实验和理论研究了细长磁响应片在磁场作用下的剥离行为。首先，在圆柱形磁铁的控制下，分析了两块相同的磁敏薄片，它们分别有液膜附着和无液膜附着。此外，通过经典弹性模型抽象出剥离过程，并建立了势能函数的表达式。基于 Rayleigh-Ritz 方法，得到了剥离过程中磁响应片的挠度和粘附长度的近似解。进一步预测了圆柱形磁铁产生的磁场和粘附功对磁响应片最大挠度和粘附长度的影响。理论近似解与实验数据非常吻合。这些发现将为医疗微传感器和用于药物输送的智能结构等广泛的工业领域提供新的启示。

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来源期刊

Archive of Applied Mechanics 物理-力学

CiteScore

4.40

自引率

10.70%

发文量

234

审稿时长

4-8 weeks

期刊介绍： Archive of Applied Mechanics serves as a platform to communicate original research of scholarly value in all branches of theoretical and applied mechanics, i.e., in solid and fluid mechanics, dynamics and vibrations. It focuses on continuum mechanics in general, structural mechanics, biomechanics, micro- and nano-mechanics as well as hydrodynamics. In particular, the following topics are emphasised: thermodynamics of materials, material modeling, multi-physics, mechanical properties of materials, homogenisation, phase transitions, fracture and damage mechanics, vibration, wave propagation experimental mechanics as well as machine learning techniques in the context of applied mechanics.