Altair SimSolid is a revolutionary 3d architecture simulation solution for architects, and engineers since it can do structural assessments on fully featured CAD assemblies in a matter of minutes.
It uses an algorithmic model informed by its knowledge of previous simulations. It takes as input the number of degrees of freedom that the user has specified for the 3D model. It runs the simulation or analysis and then solves it to obtain the stresses, deflections, and other metrics of interest. This is compared to the boundary conditions (loads, constraints, etc.) that you specified initially, and local and global errors are computed accordingly.
There are a bunch of decent tools out there that offer the same array of services as SimSolid. And it can sure get confusing to choose the best from the lot. Luckily, we've got you covered with our curated lists of alternative tools to suit your unique work needs, complete with features and pricing.