Reinforcement by Thicker Surface for Reduced Stress Peaks

The easiest way, of course, would be to insert an opening for the area that should be reinforced, and to include this opening in a thicker surface again (surface thickness + reinforcement thickness). To do this, proceed as follows:

1. First, create all boundary lines (Image 01).
   

   1 Boundary Lines of Surfaces with Openings Within Other Surfaces
2. Create the first surface with external boundary lines, if this does not already exist (Image 02).
   

   2 Creating Surface Area
3. Create an opening where the inner surface will be located later (Image 03).
   

   3 Opening for Surface in Surface
4. Create the inner surface (Image 04).
   

   4 Surface Within Opening of Another Surface
5. If necessary, create further openings within the inner surface (Image 05).
   

   5 Openings Within Surface in Another Surface

However, this modeling does not consider the contact between the surface and the reinforcement (possible failure at tension). A consideration closer to reality would be, for example, using contact solids, but this modeling would be more time-consuming, depending on the model. However, this provides more accurate results. For this, you can find a link to the article about modeling contact solids below.