Analysis of microbuckling for monomolecular layers adhering to a substrate

作者：Chang TC^*; Guo WL; Li GQ

来源：Acta Mechanica Sinica, 2002, 18(6): 608-620.

• nanotechnology
• microbuckling
• monomolecular layer
• spring model

A two-dimensional linear spring model is established to study the microbuckling of a plane monomolecular layer adhering to a substrate. The model is for the layer subjected to a compressive load having an arbitrary angle with the chemical bond of the layer. The effects of the load angle, the strength of adhesion and the bending stiffness and shearing stiffness (the capability of resisting transverse bending and in-plane shearing) of the layer on the minimal buckling force and the critical buckling mode are discussed. It is found that the minimal buckling force increases with increasing load angle and, for a given bending stiffness, increases with increasing strength of adhesion and decreasing shearing stiffness. Furthermore, a critical condition under which the buckling of the layer can just occur is obtained, which is helpful to avoid buckling in an engineering application.

• 出版日期2002-12
• 单位同济大学; 南京航空航天大学; 西安交通大学