1. Module to enter data.(Preprocessing)
2. Module to perform analysis.(Processing)
3. Module to interpret and display the result.(Post Processing)

Preprocessing

The preprocessing module is used for entering all the information necessary to define the problem.

The preprocessing function must accomplish the following three functions,

• Description of Geometry of the object
• Description of Material Properties
• Mesh Generation
• Definition of loading and boundary condition

The initial Screen will look like the one as shown on the right hand side of the screen. By clicking on the input box one can go to the input-screen. The software asks the user to input a series of information needed to solve the problem.

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Processing

In the processing phase the object is analyzed and the unknown in the finite element problem is computed. Input to processing module is the preprocessor file. Its output is the value of unknown quantity at each node of the object.

• Forms the element stiffness matrices.
• Assembles the element stiffnes matrices into a global matrix.
• Solves for the unknowns by solving the matrix using gaussian elimination method.

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Post-Processor Module

The post-processor describes the results of the variables computed at the various nodes of the structure. The post-processor output involves the following

• · Nodal displacement values
• · Elemental Stress values
• · Reaction at constrained nodes
• · Graphical display of displacements
• · Graphical display of stress contours

 
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