A mesh is a network of line elements and interconnecting nodes used to model a structural system and numerically solve for its simulated behavior under applied loading. First, computational techniques create an analytical model by populating the material domain with a finite-element mesh in which each line element is assigned mathematical attributes (axial, bending, shear, and torsional stiffness, etc.) which simulate the material and geometric properties of the structural system. The system is then restrained within boundary conditions and subjected to mechanical or thermal loading. 
Numerical solution may then resolve structural stresses, strains, and displacements.
The SAPFire ® Analysis Engine drives the meshing and numerical-solution procedures of
CSI Software. A multi-threaded solver takes advantage of current multi-core CPU systems, and can utilize more than 4 GB of RAM. This enables sophisticated and efficient meshing techniques which automatically translate the user-defined object-based model into a finite-element model. Analysis, design optimization, and useful output information all proceed automatically through a streamlined and powerful computational process.
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