Adhesion mechanism of a gecko-inspired oblique structure with an adhesive tip for asymmetric detachment
Adhesion mechanism of a gecko-inspired oblique structure with an adhesive tip for asymmetric detachment
复制标题
DOI：
10.1088/0022-3727/48/47/475301
复制
发表时间：
2015-10
期刊：
影响因子：
--
通讯作者：
Y. Sekiguchi;Kunio Takahashi;C. Sato
中科院分区：
文献类型：
--
作者：
Y. Sekiguchi;Kunio Takahashi;C. Sato
为了描述壁虎足毛的脱落机理，考虑了附着的极限应力，提出了一种具有粘附尖端的倾斜结构的粘附模型。当外力作用于斜结构的根部时，接触处产生法向应力和剪应力，当达到极限应力时，粘接尖端与表面分离。引入了考虑法向应力和剪应力的粘着判据，从理论上研究了斜向结构的不对称脱离。此外，还制作了斜束阵列结构，并通过实验验证了倾斜对非对称脱离的影响。
An adhesion model of an oblique structure with an adhesive tip is proposed by considering a limiting stress for adhesion to describe the detachment mechanism of gecko foot hairs. When a force is applied to the root of the oblique structure, normal and shear stresses are generated at contact and the adhesive tip is detached from the surface when reaching the limiting stress. An adhesion criterion that considers both the normal and shear stresses is introduced, and the asymmetric detachment of the oblique structure is theoretically investigated. In addition, oblique beam array structures are manufactured, and an inclination effect of the structure on the asymmetric detachment is experimentally verified.