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A compound bar having steel rod of diameter 35mm and solid copper of diameter 20mm and aluminiu square rod is as shown in fig. Find change in length of bar. Take Modullus of elasticity $E_{s}=210$
written 4.7 years ago by gravatar for teamques10 teamques10 ★ 65k modified 2.1 years ago by gravatar for pedsangini276 pedsangini276 • 4.8k

$E_{c} = 11- GPa and Eal = 70 GPa$

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strength of materials
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written 4.7 years ago by gravatar for teamques10 teamques10 ★ 65k

$$ \begin{array}{l}{\text { Data: } \mathrm{Es}=210 \mathrm{kN} / \mathrm{mm}^{2}, \mathrm{Ec}=110 \mathrm{GPa} \text { and } \mathrm{E}_{\mathrm{Al}}=70 \mathrm{GPa}} \ {\text { Find: } \mathrm{P}, \delta \mathrm{L}} \ {\text { To find unknown force } \mathrm{P} \text { , }} \ {\sum \mathrm{Fx}=0} \ {-30+\mathrm{P}-5+10=0} \ {\mathrm{P}-25=0} \ {\mathrm{P}=25 \mathrm{kN}}\end{array} $$ To …

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