Finite element analysis (FEA) is a computer simulation technique used to better understand the highly complex problem of plastic injection molding. Mold flow uses a numerical technique called the finite element method (FEM). The computer simulation predicts material behavior during the molding cycle by analyzing a shell mesh of the 3D part model. The mesh consists of 3-node, triangular elements. In general, the more elements there are in the mesh the more detailed the results. However, with more nodes the analysis time is also increased. Midplane Flow analysis is most accurate for thin-wall part geometries.

The programs simulate flow by calculating a flow front that grows from the first node to connecting node, starting at the injection node. The cycle continues until the flow front has expanded to fill the last node. MPI also uses a packing analysis to determine whether a cavity will be completely filled and a runner balance analysis that ensures equal pressure is delivered at each cavity.

Our plastics consulting business has a primary focus on the injection molding industry and specialize in Plastics Simulation for Manufacturing Analysis, Materials, Product Design & Development and our customer base includes custom molders, tool and moldmakers, automotive manufacturers, white goods manufacturers, medical and pharmaceutical manufacturers and product design development organizations.