Figure P.16.10 shows a plane truss pinned to a rigid foundation. All members have the same Young's modulus of 70 000 N/mm² and the same cross-sectional area, A, except the member 12 whose cross-sectional area is 1.414A. Under some systems of loading, member 14 carries a tensile stress of 0.7 N/mm². Calculate the change in temperature which, if applied to member 14 only, would reduce the stress in that member to zero. The coefficient of linear expansion a= a=24×10-/° C.

Elements Of Electromagnetics
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Figure P.16.10 shows a plane truss pinned to a rigid foundation. All members have the same
Young's modulus of 70 000 N/mm² and the same cross-sectional area, A, except the member
12 whose cross-sectional area is 1.414A.
Under some systems of loading, member 14 carries a tensile stress of 0.7 N/mm². Calculate the
change in temperature which, if applied to member 14 only, would reduce the stress in that
member to zero. The coefficient of linear expansion a=24x10-/º C.
Ans. 5.5°.
Transcribed Image Text:Figure P.16.10 shows a plane truss pinned to a rigid foundation. All members have the same Young's modulus of 70 000 N/mm² and the same cross-sectional area, A, except the member 12 whose cross-sectional area is 1.414A. Under some systems of loading, member 14 carries a tensile stress of 0.7 N/mm². Calculate the change in temperature which, if applied to member 14 only, would reduce the stress in that member to zero. The coefficient of linear expansion a=24x10-/º C. Ans. 5.5°.
12a
3a
FIG
4a
5a
2.
Transcribed Image Text:12a 3a FIG 4a 5a 2.
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