Possibility of Reversible Joint by Variable Elastic Modulus

Takahashi, Kunio; Hemthavy, Pasomphone; Sriwijaya, Rachmat; Lei, Lei; Jatmiko, Kusumo; Saito, Shigeki

doi:10.2207/qjjws.26.292

Cited by 6 publications

(6 citation statements)

References 7 publications

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“…The elastic energy U e can be calculated using the analytical solutions for the nonadhesion contacts of a sinusoidal rigid surface and a flat rigid surface onto an elastic body [12,14]. The external pressure is defined as p and half contact width is defined as a.…”

Section: Modelmentioning

confidence: 99%

“…Therefore, the contact cannot be separated by finite external stress (negativep) from the complete contact [14]. In order to release the object, we have to choose the parameters as…”

Section: Adhesion Mechanism Without Defectmentioning

confidence: 99%

“…So the gripping stress can be calculated from the minimal pressure of equation (7) (i.e., the maximum gripping stress). It can be well approximated [14] by …”

Section: Adhesion Mechanism Without Defectmentioning

confidence: 99%

“…The elastic modulus is one of the properties. Takahashi et al [14] have theoretically investigated grip-and-release mechanism using a polymer which exhibits variable elastic modulus [15,16]. The adhesion force is clearly expressed as a function of the elastic modulus.…”

Section: Introductionmentioning

confidence: 99%

“…The adhesion force is clearly expressed as a function of the elastic modulus. The investigation in [14] has clarified that the object cannot be separated after complete contact by finite external stress (negative pressure). However, the real surface of the object not only has ideal sinusoidal roughness, but also, in some cases, defects such as cracks or dents.…”

Section: Introductionmentioning

confidence: 99%

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Mechanisms for Grip-and-Release Process of Adhesion Contact Using Material with Variable Elastic Modulus

Sekiguchi

Lei

Hemthavy

et al. 2010

Journal of Adhesion Science and Technology

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Adhesion mechanisms with and without a defect for gripping and releasing objects are proposed, considering the adhesion between a semi-infinite elastic body and a rigid object with a sinusoidal surface roughness. These mechanisms are investigated theoretically. The total energy consists of the elastic term, the interfacial adhesion term, and the mechanical potential energy term due to the external pressure. The grip-and-release process is discussed in terms of the changes in the total energy and the contact width. The gripping stress can be expressed as a function of the elastic modulus. Using polymers with variable elasticity, the grip-andrelease process is demonstrated experimentally and discussed in terms of the theory.

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Section: Modelmentioning

confidence: 99%

“…Therefore, the contact cannot be separated by finite external stress (negativep) from the complete contact [14]. In order to release the object, we have to choose the parameters as…”

Section: Adhesion Mechanism Without Defectmentioning

confidence: 99%

“…So the gripping stress can be calculated from the minimal pressure of equation (7) (i.e., the maximum gripping stress). It can be well approximated [14] by …”

Section: Adhesion Mechanism Without Defectmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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