By Kent Lawrence

The 9 classes during this publication introduce the reader to powerful finite aspect challenge fixing by means of demonstrating using the great ANSYS FEM software program in a sequence of step by step tutorials. subject matters coated contain difficulties concerning trusses, airplane rigidity, aircraft pressure, axisymmetric and third-dimensional geometries, beams, plates, conduction and convection warmth move, thermal tension, and extra. The tutorials are appropriate for both expert or scholar use. desk of Contents Lesson 1 - Trusses Lesson 2 - aircraft rigidity, airplane pressure Lesson three - Axisymmetric difficulties Lesson four - 3-dimensional difficulties Lesson five - Beams Lesson 6 - Plates Lesson 7 - warmth move, Thermal pressure Lesson eight - p-Method Lesson nine - chosen subject matters

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Main Menu > Preprocessor > Loads > Define Loads > Apply > Structural > Displacement > On Lines Pick the bottom edge of the quadrant > OK > UY = 0. > OK 12. Main Menu > Preprocessor > Loads > Define Loads > Apply > Structural > Pressure > On Lines. 0 > OK (A positive pressure would be a compressive load, so we use a negative pressure. ) The model-building step is now complete, and we can proceed to the solution. First to be safe, save the model. 13. ; use a new name) SOLUTION The interactive solution proceeds as illustrated in the tutorials of Lesson 1.

This means that the state of stress and deformation below a horizontal centerline is a mirror image of that above the centerline, and likewise for a vertical centerline. We can take advantage of the symmetry and, by applying the correct boundary conditions, use only a quarter of the plate for the finite element model. For small problems using symmetry may not be too important; for large problems it can save modeling and solution efforts by eliminating one-half or a quarter or more of the work. Place the origin of X-7 coordinates at the center of the hole.

5. Main Menu > Preprocessor > Material Props > Material Models Material Model Number 1 Double click Structural > Linear > Elastic > Isotropic. 27 > OK Figure 1-31 Properties for material no. 1. 3 > OK Close the Define Material Model Behavior window. Now enter nodal coordinate data and element connectivity information. 6. 0 > OK (CS stands for Coordinate System. Because linkl can only be used for a 2D, X-Y plane, model, no Zcoordinate values need be entered. ) If you make a mistake, return to this Node Create window to correct the coordinate values.

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