Modifying an existing product or structure is utilized to qualify the product or structure for a new service condition. A company is able to verify whether a proposed design will be able to perform to the client’s specifications prior to manufacturing or construction. It is used in new product design, and also in existing product refinement. Uses of Finite Element AnalysisĪ common use of Finite Element Analysis (FEA) is for the determination of stresses and displacements in mechanical objects and systems. While being an approximate method, the accuracy of the Finite Element Analysis (FEA) method can be improved by refining the mesh in the model using more elements and nodes, though this will retard the process of converging. Read More: AutoCAD 2010 Free Tutorial Download | AutoCAD Drawings For Practice | AutoCAD Drawings Free Download Within each of these modeling schemes, the programmer can insert numerous algorithms (functions) which may make the system behave linearly or non-linearly. 3-D modeling, produces more accurate results while it can only be run satisfactorily on a faster computer effectively. While 2-D modeling conserves simplicity and allows the analysis to be run on a relatively normal computer, it tends to yield less accurate results. There are generally two types of FEA analysis: 2-D modeling, and 3-D modeling. This method of product design and testing is far superior to the manufacturing costs which would accrue if each sample was actually built and tested. The system of equations is solved for unknown values using the techniques of linear algebra or nonlinear numerical schemes, as appropriate.įEA has become a solution to the task of predicting failure due to unknown stresses by showing problem areas in a material and allowing designers to see all of the theoretical stresses within. In this, the object or system is represented by a geometrically similar model consisting of multiple, linked, simplified representations of discrete regions - finite elements.Įquations of equilibrium, in conjunction with applicable physical considerations such as compatibility and constitutive relations, are applied to each element, and a system of simultaneous equations is constructed. It uses a numerical technique called the finite element method (FEM).
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