  Design and modeling of a stellarator fusion reactor is a multidisciplinary
effort that requires a tight integration between simulation of highly nonlinear
multi-physics and representation of non-planar complex geometries. The critical
current calculation and the design of the mechanical structures are among the
most crucial aspects as they set size, cost, and time to build the stellarator.
Because of the asymmetric and non-planar nature of its components the modeling
of such figures of merit needs to be carried out at large scale, without the
possibility of taking advantage of any particular symmetry. In this work we
develop a three-dimensional model for the analysis of the magnetic field and
forces, necessary for such considerations, for complex coil geometries, such as
stellarators, where a two-dimensional approach can not provide accurate
analyses and verification of assumptions. Moreover, this method can quickly
generate a large amount of critical modeling data (e.g. Lorentz load,
displacement and stresses) that could be integrated into a workflow for coil
design optimization based on machine learning or other recent optimization
tools.
