1. Demonstration of Euler Buckling Experimental Engineering Project Presentation Yağız Yalçınkaya 110160049 Ogeday Ercüment Bozkurt 110160044

2. Contents o Introduction o Euler Buckling Cases o Experiment Unit o Calculation of Euler Buckling Cases - Theorical Approach -Experimental Approach -Numerical Approach o Conclusion

3. Introduction What is the buckling behavior ? Buckling which is not related with strength of the material is change is shape of structural component under load and The Euler Buckling is theory of that behaviour of the component.

4. Euler Buckling Cases Euler case 1 : fixed-free bar Euler case 2 : pinned-pinned bar Euler case 3 : fixed-pinned bar Euler case 4 : fixed-fixed bar

5. Experiment Unit ComponentExplanation Pinned supportResist both vertical and horizontal forces but not moment. Mount for loadsFor place loads properly and safe. Load There are three kind of load which are 5 N and 1 N in the experiment setup. Fixed supportResist vertical and horizontal forces as well as a moment. Backing wall with grid patterning For observing results of experiment clearer. Buckling barBar that will be subjected to load.

6. Calculation of Euler Buckling Cases Theorical Approach

7. Calculation of Euler Buckling Cases Euler case 1 : fixed-free bar Euler case 2 : pinned-pinned bar Euler case 3 : fixed-pinned bar Euler case 4 : fixed-fixed bar Experimental Approach

8. Calculation of Euler Buckling Cases Numerical Approach

9. Calculation of Euler Buckling Cases The maximum skewness value was found to be 1.3066e-010 and the mesh was sufficient.

10. Numerical Approach Calculation of Euler Buckling Cases

11. Conclusion Case 1 : fixed-free bar Theorical Approach of Case 1

12. Conclusion Case 1 : fixed-free bar Numerical Approach of Case 1

13. Conclusion Case 1 : fixed-free bar Numerical Approach of Case 1

14. Conclusion Case 2 : pinned-pinned bar Theorical Approach of Case 2

15. Conclusion Case 2 : pinned-pinned bar Experimental Approach of Case 2 Critical Load : 8N

16. Conclusion Case 2 : pinned-pinned bar Numerical Approach of Case 2

17. Conclusion Case 2 : pinned-pinned bar Numerical Approach of Case 2

18. Conclusion Case 3 : fixed-pinned bar Theorical Approach of Case 3

19. Conclusion Case 3 : fixed-pinned bar Experimental Approach of Case 3 Critical Load : 13N

20. Conclusion Case 3 : fixed-pinned bar Numerical Approach of Case 3

21. Conclusion Case 3 : fixed-pinned bar Numerical Approach of Case 3

22. Conclusion Case 4 : fixed-fixed bar Theorical Approach of Case 4

23. Conclusion Case 4 : fixed-fixed bar Experimental Approach of Case 4 Critical Load : 27N

24. Conclusion Case 4 : fixed-fixed bar Numerical Approach of Case 4

25. Conclusion Case 4 : fixed-fixed bar Numerical Approach of Case 4

26. Critical Buckling Load (N) MethodCase 1Case 2Case 3Case 4 Theorical2816.332 Numerical2.01167.9916.47629.334 Experimental-81327 Conclusion Table Critical Buckling Load Error (%) MethodCase 1Case 2Case 3Case 4 Numerical0.580.1251.0797558.33125 Experimental-020.245415.625

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