2A
A
P3
P4
a
3/4b
b
P2
34
C
Given: [?], = 160 MPa; [?] =200 MPa;
P? = 70 kN; P = 80 kN; P? = 90 kN,
a = 3 m, b = 4 m, c = 5 m.
Goal:
1) open static indeterminacy and design the graph on normal forces;
2) calculate cross-sectional area F;
3) calculate acting stresses in the portions of the rod and design the graph
of their distribution along the length of the rod;
4) design the graph of the rod elongations;
5) estimate stress state in critical cross-section.
X
