The axially loaded bar ABCD shown in the figure is held between rigid supports The bar has cross sectional area A1 from A to C and 2A1 from C to D (a) Derive formulas for the reactions RA and RD at the ends of the bar (b) Determine the displacements Icirc acute B and Icirc acute C at points B and C, respectively (c) Draw a diagram in which the abscissa is the distance from the left hand support to any point in the bar and the ordinate is the horizontal displacement Icirc acute at that point L 2 4 4

Question: The axially loaded bar ABCD shown in the figure is held between rigid supports. The bar has cross-sectional area A1 from A to C and

The axially loaded bar ABCD shown in the figure is held between rigid supports. The bar has cross-sectional area A1 from A to C and 2A1 from C to D.
(a) Derive formulas for the reactions RA and RD at the ends of the bar.
(b) Determine the displacements Î´B and Î´C at points B and C, respectively.
(c) Draw a diagram in which the abscissa is the distance from the left-hand support to any point in the bar and the ordinate is the horizontal displacement Î´ at that point.

L-2 4 4

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