Yes! The mesh is a tetrahedral mesh. Just be sure to use tet-10 elements.
The mesh you want also looks to have a finer mesh density around what may be holes (can’t tell from the picture). Apex has lots of way to seed areas where a higher mesh density is desired.
Also, if your loads and constraints are symmetric, you could slice out just a quarter symmetry and save a lot of compute time.
And finally, this geometry look like you can mesh with 2.5D hex element by which you heavily reduce the model size and compute time to get a result.
I forgot to mention its a 2D mesh. Where the mesh is dense there are gaps between the geometry, how to tell the mesher that in the gaps (0,1 mm) mesh it denser? and also how to set to mesh denser corners?
Ok. Use quadrilaterals instead of triangles. Will give you more accurate result. If the geometry has gaps, then the mesh will also have gaps. You can seed any geometry edge to create a finer mesh along that edge.
Or, if you do not want those gaps, you can extend the geometry surfaces to create a continuous surface.
