and steel sections, is subjected to the loading shown.
The cross-sectional areas of sections $AB$, $BC$, and
$CD$ are $A_{AB} = 58 \text{ mm}^2$, $A_{BC} = 77 \text{ mm}^2$, and
$A_{CD} = 39 \text{ mm}^2$, respectively. The modulus of elasticity
for each section are shown in (Figure 1). Neglect the size
of the collars at $B$ and $C$.
Figure
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Part A
Review
Determine the displacement of $B$ with respect to $C$ of the composite shaft.
Express your answer to three significant figures and include the appropriate units. Enter negative value in the case of contraction and
positive value in the case of elongation.
$\delta_{B/C} =$ Value Units
Aluminum
$E_{al} = 70 \text{ GPa}$
Copper
$E_{cu} = 126 \text{ GPa}$
Steel
$E_{st} = 200 \text{ GPa}$
16 kN
8 kN
9 kN
7 kN
8kN
16 kN
450 mm
300 mm
400 mm
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