2.14 The compound bar carries the axial forces P and 2P. Find the maximum allowable value of P if the working stresses are 40 ksi for steel and 20 ksi for alumi- num, and the total elongation of the bar is not to exceed 0.2 in. 3 ft 4 ft 2P Steel Aluminum A = 0.6 in.2 E = 10 x 106 psi A = 0.4 in.2 E = 29 × 10° psi FIG. P2.14
2.14 The compound bar carries the axial forces P and 2P. Find the maximum allowable value of P if the working stresses are 40 ksi for steel and 20 ksi for alumi- num, and the total elongation of the bar is not to exceed 0.2 in. 3 ft 4 ft 2P Steel Aluminum A = 0.6 in.2 E = 10 x 106 psi A = 0.4 in.2 E = 29 × 10° psi FIG. P2.14
Chapter2: Loads On Structures
Section: Chapter Questions
Problem 1P
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The compound bar carries the axial forces P and 2P. Find the maximum allowable value of P if the working stresses are 40 Ksi for steel and 20 ksi for aluminum, and the total elongation of the bar is not to exceed 0.2 in.
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the overall length of the member is not to change by more than 3 mm; and (ii) the
stresses are not to exceed 140 MPa in steel and 120 MPa in bronze. The moduli of
elasticity are 200 GPa for steel and 80 GPa for bronze.
2.14 The compound bar carries the axial forces P and 2P. Find the maximum
allowable value of P if the working stresses are 40 ksi for steel and 20 ksi for alumi-
and the total elongation of the bar is not to exceed 0.2 in.
num,
3 ft
4 ft
2P
P
Steel
Aluminum
A = 0.6 in.2
E = 10 × 106 psi
A = 0.4 in.2
E = 29 × 10° psi
%D
%3D
%3D
FIG. P2.14
2.15 The compound bar containing steel, bronze, and aluminum segments carries
working
the avial loads shown in the figure The pronerties of the seaments and the worlina
3:07 PM
23/03/2021
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