In a Flexible-Flexible body contact, Why should the surface with finer Mesh be designated as Contact Surface, and the other surface (with coarse mesh) be designated as Target?
The Finer mesh will have more contact detection points. This will help the analysis solve better. Please note that elements/nodes on Target surface do not detect contact. In a flexible-flexible body contact, the choice of the target and contact surface can cause a different amount of penetration and thus affect the solution accuracy. Choose that surface which tends to move towards the other as the Contact Surface. (Assuming that both surfaces have same mesh density & have relatively small difference in their structural stiffness) Return to Top 53. Guidelines to choose Target/Contact Surface • If a convex surface comes into contact with a flat or concave surface, the flat or concave surface should be the target surface. • If one surface has a coarse mesh and the other a fine mesh, the surface with the coarse mesh should be the target surface. • If one surface is stiffer than the other, the stiffer surface should be the target surface. • If one surface is higher order and the other is lo
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