а L B P P₂

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answerhappygod
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а L B P P₂

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The truss ABC consists of two steel members, each having a
rectangular cross-section (b x 8b) and a modulus of elasticity E =
210 GPa. If P1 = 40 kN, P2= 120 kN, and
the allowable axial stress a, =
140 MPa, determine the minimum required value of b. For the
appropriate cross-section calculate the elongation of the bars.
Assume that = and
L=3.5m
а L B P P₂
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