632 PROCEEDINGS OF SECTION H. 
Ge =" 
b= 1’ 
|” 
= anne 
4 M fel Tao 2 : 
fa ae Sicar a a 
Shs) ari 1 
eee OW SN eee 
a 7 3 2 a 2 
We observe that the stresses due to the tension and 
shear are very smal] compared with the bending stresses, 
and that the stresses at the point A become, relatively to 
those at B, more intense as the links become more oval. 
We may note that no inferences are to be drawn from 
the above work as to the actual method of failure of 
links—-the work is supposed to apply only within the 
elastic limit of the material, and although it is a safe guide 
to design when the stresses are kept within the elastic 
limit, care must be taken not to attempt to apply it to 
cases of failure of chains. The testing machine, on the 
other hand, can inform us as to the limiting load a given 
chain will carry, but gives us no idea of the magnitude of 
the stresses in the material. 
