Benefits of a new Bi-Mesh technique applied to incremental forming simulation with FORGE

We present a fully parallel Bi-Mesh method which permits to dramatically speed-up incremental forging computations by taking advantage of the localization of the deformation area. Working on two meshes at each time step, one to solve the mechanical problem and one to solve the thermal problem and store the results, permits to take advantage of recent adaptive remeshing techniques without suffering from the usual remapping issues. This method has been successfully implemented in the commercial software FORGE and is compatible with a wide range of other FEM facilities. Speed-up larger than 4 are common and speed-up larger than 10 can be reached in favorable cases.