LM4 



.lOlIX ('. KOCH 



ing unit -stress by the coefficient Q, ])i'(»\i()usly (leteriniiiecl for 

 each given point in each section. Thc^ dc^tails of such computa- 

 tions are given for section 8 in table 4 (p. 230) ; the same meth- 

 ods were employed for all the other sections analysed. 



'Dlrf35C5 Dup to 

 dcnd/nqPlomcnl 



Fig. 18 a Diagram of the stresses in transverse section 8, based on a load of 

 100 pounds on the femur-head. The amounts and lines of action of the stresses 

 in every part of this section are shown graphically to scale. There are four 

 kinds of stress in action at every point in the section : compression uniformly 

 distributed over the cross section; tension or compression due to the bending 

 moment, such stress varies uniformly from zero at the neutral plane to a maxi- 

 mum at the extreme outer fibers of the section, as shown; horizontal shear and 

 vertical shear, both of which are equal in amount at any given point, and which 

 vary from a maximum at the neutral axis to a minimum of zero at the fibers 

 most distant from the neutral axis, the variations depending upon the shape and 

 consistency of the section. 



