Please help explain why in the paperclip fatigue experiment, it is found that larger-dimension paperclips are more prone to fracture (fatigue failure) as compared to smaller-dimension paperclips, i.e.' number of cycles to failure' is smaller for larger paperclips, when both are bent at 45, 135 and 180 degrees?

Experiment details as follows if required:

1. Draw the required angles (45 , 135 and 180 ) on a sheet of A4-sized paper with the aid of the ruler and protractor.

2. 3.2. Create a table to fill in the number of cycles it takes for each type of paperclips to fail at 45 , 135 and 180 , with 5 sets of data for each angle.

3. 3.3. Hold the Brand A paperclip (large end portion) between the thumb and index finger of the left hand, by placing the thumb on top of the paperclip and the index finger at the bottom of the paperclip.

4. 3.4. Place the Brand A paperclip in a horizontal orientation, i.e. at 0 over the sheet of paper with all the angles drawn on it.

5. 3.5. Hold the Brand A paperclip (open end portion) using the right index finger with the thumb providing support at the top of the paperclip.

6. 3.6. Pull back the small pin portion of the Brand A paperclip by 45 until the pin coincides with the 45 line on the sheet of paper.

7. 3.7. Push back the small pin portion of the Brand A paperclip to its original position, i.e. 0 .

8. 3.8. Reference this as one cycle and commit it to memory.

9. 3.9. Repeat steps 3.6 to 3.8 until Brand A paperclip fractures.

10. 3.10. Record the number of cycles required for the Brand A paperclip to break in the

    table.

11. 3.11. Repeat steps 3.3 to 3.10 for another 4 times.

12. 3.12. Repeat steps 3.3 to 3.11 for all the other angles, i.e. 135 and 180 .

13. 3.13. Repeat steps 3.3 to 3.12 for Brand B paperclip.

14. 3.14. Compute the mean number of cycles required for the paperclip to break.

Thank you for help