A implant development and manufacturing organization is interested in carrying out FEA on a spinal implant design.The implant will be made from Polyurethane material. The disc is of symmetrical design with screwable attachments on its top and bottom surface. The disc is thus sandwiched between rigid plates. The goal of the analysis was accurate simulation of flexion, extension, torsion and bending deformation modes.
Multi-step analysis was carried out by first simulating the pre-compression and then simulating the extension, flexion etc. in the second step.
- Non-linear material property of the Polyurethane material had to be included.
- Large expansion deformation along with multi-step analysis procedure had to be carried out.