206 



REPORT 1867. 



TRAKSVERSE STRAIN. 



Exp. XLI. — Bar of Steel from Messrs. Turton & Sons, Sheffield. Dimension 

 of bar 1'02 inch square. Length between supports 4 feet 6 inches. 

 Hark on bar, " F." 



Results of Exp. 'KLl, 



Here the weight {w) at the limit of elasticity is 960 lbs., and the corre- 

 sponding deflection (g) is 1^156. 



By formida (6). — The moan value of the deflection for unity of pressure 

 and sectiou (D,) = -001302. 



By formula (7). — The mean yaluc of the modulus of elasticity (E) 

 = 30,218,000. 



By formula (2).^ — The modulus of elasticity (E) corresponding to 112 lbs. 

 pressui-e = 32,480,000. 



By formula (8). — "Work of deflection (U) up to the limit of elasticity 

 = 46-240. 



By formula (9). — Work of deflection (m) for unity of section = 44-444. 



By formula (12). — Value of C, the unit of working strength = 5-440 tons. 



