The effect of a capillary bridge on the crack opening of a penny crack

Fuqian Yang, Ya-Pu Zhao
2016 Soft Matter  
Young's relation is based of the equilibrium of the horizontal components of surface tensions for a liquid droplet on a "rigid" substrate without addressing the substrate deformation induced by the net vertical component of surface tensions. The net vertical component of the surface tensions can introduce a surface ridge around a contact line.
doi:10.1039/c5sm02643a pmid:26660422 fatcat:syyqocugwbgtpipxc3mr4jtioq