340 REPORTS ON THE STATE OF SCIENCE, ETC. 
ge 
ba @8.27h¢. eA.I/.s.6. 
B.22.h.t0, OAI4. Ale. 
8 30A¢ 
A.9.s.c.0° 
9016 B28 AL AIS S65. 
©B.3/.s.c.90° 
©B/7)s.c.0° 
Greatest Strain Difference at Fracture Ran 
“0012 
©A.6.h.c.90° 
> 
ee 60 65 70 75 
Maximum calculated Shear Stress at Fracture Range. tons per sq. in. 
Fic. 14. 
Letters after number of Specimen :— 
h means hollow. 
iS) 55) ae olid: 
é ,, tested in alternating torsion. 
Bi.) aby op bending. 
¢ 90° means tested in alternating combined bending and torsion, phase angle 90°. 
6G. init » 2 eT 0 » zero 
0020 
Ss 
S 
S 
B.27to OA SE 
Ss 
Ss 
— 
yg 
AIS 
©8B 34.c.90° 
8 
S 
x 
S 
i) 
= 
N 
Greatest Strain Difference at Fracture Range 
5S - 60 65 70 
Maximum Shear Stress at Fracture Range. tons per sq.in. 
Fiq. 15. 
Letters after number of specimen have same meaning as in fig. 14. 
Calculated stresses of solid specimens reduced in ratio mae 
