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0.03 MN/m

0.03 MN/m. Thickness = 0.20 m Young’s modulus = 10500e6 Poisson’s ratio = 0.15. 0.5 m. 3 m. 1 m. 1 m. 1 m. Start CALFEM/Pre. Create new model. Create nodes for the geometry. Nodes are created by clicking and using the snap functions in CALFEM/Pre. Create lines.

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0.03 MN/m

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  1. 0.03 MN/m Thickness = 0.20 m Young’s modulus = 10500e6 Poisson’s ratio = 0.15 0.5 m 3 m 1 m 1 m 1 m

  2. Start CALFEM/Pre

  3. Create new model

  4. Create nodes for the geometry Nodes are created by clicking and using the snap functions in CALFEM/Pre

  5. Create lines Lines are created by clicking on two nodes.

  6. Create surfaces Surfaces are created by clicking on 4 lines.

  7. Setting element division To set the element division the surface has to be selected. When the surface is selected the surface properties dialog is used to set the divisions. Divisions are given as rows and columns.

  8. Finished mesh and geometry

  9. Saving the model The file format used in CALFEM/Pre is the MATLAB m-file. CALFEM/Pre defines blocks in the m-file to store the geometry information. The m-file can be modified and reloaded in the geometry editor. When a model is saved for the first time a guide is used to determine how the m-file should be created. In this first step the only option is used to determine if a skeleton solution code should be generated. If this option is not checked only the geometry definition is generated.

  10. Choosing element type In this step we choose what element type to use when generating the solution code.

  11. What goes into the model In the last step options for adding comments in the code are set. Comments are used to tell the user what steps has to be done to finish the model.

  12. Choose m-file

  13. Starting MATLAB

  14. Open tutorial.m >> edit tutorial The screenshot right shows the matlab editor with the created model tutorial.m

  15. Define a material To run the model we have to add variables to define the material we use. Add variables Modify material definition

  16. Loads and boundary conditions The top load is defined and we set fix the model at the bottom. Add loads Add boundary conditions

  17. Add post processing code To show the results of the calculation we add post processing commands. Post processing commands

  18. Executing the calculation To execute the calculation we type tutorial at the MATLAB command prompt.

  19. Results Geometry Displacements Principal stresses

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