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[" Problem - "12.27:" Two bars are unstr...

[" Problem - "12.27:" Two bars are unstressed and have"],[" lengths of "25cm" and "30cm" at "20^(@)C" as shown in "],[" Figure,Bar "(I)" is of aluminium and bar "(2)is" of steel."],[" The cross sectional areas of the bars are "20cm^(2)" for "],[" the cross esectional areas of the bars are "20cm^(2)" for "],[" top and bottom supports are rigid,compute the stress "],[" take "Y_(a)=0.70times10^(5)N/mm^(2)],[qquad [x_(1)=2.1times10^(5)/m/m^(2)],[x_(1)=12times10^(-6)/C],[x_(1)=12times10^(-6)/^(@)C],[" Sol: Given Data."]]

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