Torsion of Rear Half-Shaft on SAE Formula Car
in the Materials Testing Laboratory at Missouri S&T
Formula SAE Team

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4130 chrome-moly steel tube welded to 4130 or 4340 ends normalized yielding occurred in the ends excessive plastic deformation, no fracture Photos by Jeff Thomas, October 19, 2000.

 

4130 chrome-moly steel tube welded to 4130 or 4340 ends wall thickness = 0.065" heat treated yielding occurred in the ends minimal plastic deformation before fracture Photos by Jeff Thomas, November 10, 2000.

 

4130 chrome-moly steel tube welded to 4130 or 4340 ends wall thickness = 0.035" heat treated tube buckled Photos by Jeff Thomas, November 10, 2000.