In order to complement MEIC’s ability to provide strain gage services, we also offer the capability to run stress and strain analysis calculations with finite element analysis (FEA) software. This software allows MEIC to be able to quickly, efficiently and accurately model complex physical structures. Different design configurations and parameters can be evaluated at a desk which cuts out the cost of extensive prototyping or multiple custom test fixtures. The results can be verified with MEIC’s strain data acquisition services to ensure practical applications.

 

In order to construct an accurate model, the boundary conditions and applicable loads must be understood. First, the part or assembly is drawn and constructed in a 3D modeling program such as SolidWorks.

 

The part or assembly is then imported into the FEA software where it is “meshed”. Meshing involves splitting the part into tiny little elements that act as independent springs. These “springs” are then governed by the same physical equations as a discrete piece of the part. The physical properties and geometrical properties are all factored into applying the most appropriate mesh refinements. Constraints are then applied to define bolts, fixed surfaces and “free-to-rotate” sections.

 

After the meshing and boundary conditions have been applied, the model is solved using linear algebra techniques. A system is set up in a matrix and then solved with numerical methods.

 

Finally, the solutions are evaluated by MEIC engineers using visualization tools. Strains, stresses, deflections, and deformed shapes are all analyzed to ensure the accuracy of the model. Remember, FEA is not an exact calculation but an extremely accurate simulation.

 

If you have any further questions, please contact us, and one of our engineers will be able to quickly address your needs..

Finite Element Analysis (FEA)