What type of element formulation should you use for a rectangular sheet metal part in SOLIDWORKS Simulation?

Using a Thin Shell element formulation for a rectangular sheet metal part is appropriate because this approach effectively captures the behavior of thin-walled structures under loading conditions. Thin shell elements are designed for applications where one dimension (the thickness) is significantly smaller than the other two dimensions (length and width). This formulation simplifies the meshing process while accurately reflecting the stiffness and stress distribution characteristics of sheet metal.

In the context of sheet metal parts, which typically have small thicknesses compared to their other dimensions, applying the thin shell element formulation allows for a more accurate representation of bending, stretching, and other deformation mechanisms that occur in such materials. It also leads to more efficient computations, as the number of nodes and elements in the mesh can be reduced without sacrificing accuracy.

In contrast, a Thick Shell element formulation would typically be more suitable for structures where the thickness cannot be ignored, or where there are more significant through-thickness stresses at play. The option suggesting that either Thick or Thin Shell formulations could be used without concern overlooks the specific characteristics of the material and structure in question. Similarly, a Beam Shell element formulation is not ideal for a flat sheet since it is primarily intended for structures that are slender and primarily experience axial forces, making it less suitable for broad sheet metal