Improving Projectile and Impact Surface Mesh
I am trying to create a mesh for ballistic impact on armour in Explicit Dynamics. The armour I have made has several overlapping layers mimicking fish scales as shown below. I have taken a section view to show the difference in the quality of mesh between the bullet and the impact surface. How can I improve the quality of the impact surface mesh?
I have Ansys 17.0/17.1 and cannot use Cartesian meshing, because the feature is not in my version of Ansys, so I have meshed both the projectile and surface using tetrahedral elements.
The armour is made of 78 bodies combined into one part. Element size 1.5mm. I have tried finer mesh size but the difference in quality is small. Help would be immensely appreciated.
Thank you very much.