If the objects instead stick together, it means that they support a tensile or adhesive force. This effect can be modeled using traditional contact modeling in COMSOL Multiphysics. If you instead apply tensile forces that pull the domains apart, then there is no contact. Whenever you apply compressive forces that press physically separate solids together, mechanical contact at the boundaries deforms the solids such that the touching boundaries conform to each other. Making Things Stick Together: How to Model Adhesion Learn how to address each of these scenarios using the new functionality in COMSOL Multiphysics.
You can, for instance, simulate objects that stick together once they come in contact ( adhesion) as well as those that pull apart ( decohesion), including full cohesive-zone modeling. As of COMSOL Multiphysics® version 5.2a, we bring you features designed to enhance your structural mechanics contact modeling.