Sample files for use with the examples are available from the Downloads page.
Expand the downloaded ZIP archive into a convenient directory from which to run Local Simulation inside the numbered directories.
Problem description
For this example, you will run commands inside directory 05.
This example simulates the Directed Energy Deposition (DED) build of a two-bead wide, fifty-layer high Ti-6Al-4V wall onto a substrate of the same material using the Optomec® LENS® system. The dimensions of the part are shown in Figure 1.
Figure1: Illustration of the substrate, deposition, their dimensions in mm, the laser path (red arrows), and the coordinate system (not to scale)
For each layer, the first bead is deposited along the +x direction, then the second bead is deposited in the−x direction. The radius of the melt pool is 1 mm, its power is 450 W, and the translation speed is 10 mm/s. The hatch spacing between the two beads is 2 mm. The ambient temperature during the process is 30.5oC. The substrate is constrained as simply supported. The thermal and mechanical response of this process is to be calculated using Local Simulation with adaptive meshing. The mesh, shown in Figure 2, is created automatically using the *AUTM and *SBXY cards. *OSIG is used to designate the writing of Cauchy stress results.
Figure 2: LENS part discretized by 8-node linear hexahedral elements. Dummy boundary conditions, materials, and properties must also be applied.