Finite Element Analysis Essay

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What is FEA?
Finite element analysis (FEA) is a computerized method for predicting how a product reacts to real-world forces, vibration, heat, fluid flow, and other physical effects. Traditionally, a branch of Solid Mechanics. Nowadays, a commonly used method for multiphysics problems. Integrates Finite Element Analysis (FEA) in every 3D design of an machine. FEA visualizations ensure proper design by eliminating unnecessary costs and weight in a machine, while maximizing the structural strength of each of the machine’s components. Using FEA methods, it can simulate torque, stress, and strain to verify how they are distributed amongst a part.

Procedure of FEA:
1. Creating the model.
The model is drawn in 1D, 2D or 3D space in the appropriate …show more content…

As most material properties vary with temperature, it is important to understand how material behaves under different operating conditions. The effects of material properties on FEA models are discussed further in our Finite Element Course. In addition element properties may need to be set. If 2D elements are being used, the thickness property is required. 1D beam elements require area, Ixx, Iyy, Ixy, J, & a direction cosine property which defines the direction of the beam axis in 3D space. Shell elements, which are 2½D in nature (2D elements in 3D space), require orientation & neutral surface offset parameters to be defined.

List of typical commercial softwares for FEA:
This is the list of typical commercial softwares for FEA:
• ADINA
• Advance Design BIM software for FEM structural analysis, including international design eurocodes, a solution developed by GRAITEC
• ALGOR
Incorporated
• Altair HyperWorks
Altair Engineering’s HyperWorks is a computer-aided engineering (CAE) simulation software platform that allows businesses to create superior, market-leading products efficiently and cost effectively.
• ANSA:
An advanced CAE pre-processing software for complete model build up.
• ANSYS:
American software
• COMSOL Multiphysics
COMSOL Multiphysics Finite Element Analysis Software formerly Femlab
• Creo Elements / Pro Mechanica:
A p-version finite element program that is embedded …show more content…

For maximum shear stress, the result obtained was 5.36 MPa. The percentage error of the maximum shear stress is -3.08%. The maximum principal stress gotten from the FEA is 10.72428 MPa. From researching, I’ve found five main sources of reasons for the percentage error.
1. The model of the structure may contain a number of simplifications. Frequently this includes precluding little points of interest. This is only suitable if the stresses in the areas where these points of interest have been included are low. Sharp radii can change the stress greatly. Typically it’s best to start with simple component, to make sure that it is behaving normally. If it is we can add in more points to the progress and repeatedly checking it after every points that have been made. By doing this we are able to understand about the details included.

Stress Singularity -- sharp re-entrant corners will cause the mesh an increasing values of stress as the component size reduces. To reduce to problem is to model the component with a material which can model plastic

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