*UTSR
r1
r1: Tensile stress of support material
This card is used to simulate support structure failure during powder bed processing. This card specifies the ultimate stress of the support material input by *CLIF, within the *MATE card block for the build material properties. When the von Mises stress of a Gauss point for an element at the support-build interface exceeds the specified ultimate tensile stress, the element fails, producing a warning in the output file when the failure occurs, and a warning at the end of the simulation stating what percentage of the total support contact volume has failed. A failed element remains in the mesh but does not resist deformation. An example of failed elements is shown in the following figure.
Example of failed elements using *UTSR, 5X magnification