Test 1
- 4130 chrome-moly steel tube welded to solid ends
- normalized
- wall thickness = 0.065"
- yielding occurred in the ends
- excessive plastic deformation, no fracture
Torsion of Rear Half-Shaft for Formula SAE Team
Test 1
- 4130 chrome-moly steel tube welded to solid ends
- normalized
- wall thickness = 0.065"
- yielding occurred in the ends
- excessive plastic deformation, no fracture
Photos by Jeff Thomas, October 19, 2000.
Test 2
- 4130 chrome-moly steel tube welded to solid ends
- heat treated
- wall thickness = 0.065"
- yielding occurred in the ends
- minimal plastic deformation before fracture
Photos by Jeff Thomas, November 10, 2000.
Test 3
- 4130 chrome-moly steel tube welded to solid ends
- heat treated
- wall thickness = 0.035"
- tube buckled
Photos by Jeff Thomas, November 10, 2000.
