When running the optimization feature with Optistruct an error appears at the bottom of the screen, 'Unknown beam section data type 'part_InitLengtangeLength' found in file.' I'm using a beam section and bar elements to model a rod that transmits stress to the core design. No clue what this means the only issue in model checkers is 'RBE3 elements are collinear' and i'm not sure if that could be the cause of the issue. It's just happens to be simultaneous issue in HyperMesh. I'm using RBE3 elements wagon wheeled on a Shell Meshed Midsurface in bore holes to simulate bolts. If anyone has some experience with these issues and could assist me it would be appreciated.
