93
7 TorsiĂłn y esfuerzos combinados
MA-MB -(MA-MB)
T CB
TC TB
M A M B
˜ 50 G ˜ Io
T DC
T D TC
M D ˜ 40 G ˜ I0
B C
-MD = MA-MB-MC MD C D
TD
TD
0
T BA T CB T DC
0
M A ˜ 30 M D ˜ 40 M A M B ˜ 50 G ˜ Io G ˜ Io G ˜ Io
0
M A ˜ 30 M A 30000 ˜ 50 M D ˜ 40 0 M A ˜ 30 M A ˜ 50 1500000 M D ˜ 40 0 80 ˜ M A 40 ˜ M D M A M D 50000  Ž ÂŻ80 ˜ M A 40 ˜ M D 1500000
1500000
Â40 ˜ M A 40 ˜ M D ÂŽ ÂŻ80 ˜ M A 40 ˜ M D
2000000 1500000
Â&#x;MA
3500000 120
29166,6 N ˜ cm
Diagrama de momentos torsores: 29166,6 +
MD
B
A -833,4
-
50000 29166,6 20833,4 N ˜ cm D
C -20833,4
-20833,4 ( N˜cm )