Adhesive contact between an elliptical rigid flat-ended punch and an elastic half space
Adhesive contact between an elliptical rigid flat-ended punch and an elastic half space
复制标题
椭圆形刚性平端冲头与弹性半空间之间的粘合接触
DOI：
--
复制
发表时间：
2005
期刊：
影响因子：
--
通讯作者：
Fuqian Yang
中科院分区：
文献类型：
--
作者：
Fuqian Yang
本文分析了椭圆形刚性平头凸模与弹性半空间之间的粘着接触。在接触区的非自相似增长。发现分离在长轴的边缘处开始，这将导致椭圆接触变为圆形接触。从细长椭圆接触到圆形接触，分离开始的拉脱力增加，并与弹性材料的界面能和剪切模量的平方根成正比。得到了拉脱力与相应凸模位移之间的关系，该关系与弹性材料的弹性性质无关。
The adhesive contact between an elliptical rigid flat-ended punch and an elastic half space was analysed in this study. Non-self-similar growth in the contact area was obtained. The separation was found to initiate at the edges of the major axis, which would lead the elliptical contact to a circular contact. The pull-off force for the initiation of separation increases from the slim elliptical contact to the circular contact and is proportional to the square root of the interfacial energy and shear modulus of the elastic material. A relation between the pull-off force and the corresponding punch displacement was obtained, which is independent of the elastic properties of elastic materials.