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Three Point Bend Testing

This was performed on the Hounsfield Three Point Bend machine (Figure ) and associated software. The samples used were the blanks. The software provides information on the MOE, the maximum flexural stress, the deflection at fracture and a plot of the Load vs Deflection curve. The MOR can be derived by the formula:

 

Where the Load is interpolated from the plot. L is the span. and the and terms relate to the moment of inertia.

  
Figure: The three point bend machine used in this experiment.