1. An apparatus comprising: a graph generator, wherein the graph generator is configured to form a first graph based on a plurality of points within a region in which the plurality of points represent a plurality of locations relative to a structure for a plurality of fastener devices configured to be installed in the structure to form a joint; wherein the graph generator is configured to identify primary points and secondary points based on the first graph and to form a second graph using the primary points, the secondary points, and the first graph; and a model generator configured to generate a two-dimensional model consisting entirely of triangular sectors using vertices of the second graph, wherein the two-dimensional model is configured for use in forming a mesh for use in performing finite element analysis for the joint; and a processor configured to perform the finite element analysis for the joint.