Given an aluminum shell perfectly bonded to a steel core, what is the thermal stress in the aluminum shell when the system is heated from the unstressed state (20∘C) to 180∘C? Consider only deformations in the axial directions. Give your answer in MPa

Question

αAl=23.6×10−6K−1

EAl=70GPa

αSteel=11.7×10−6K−1

ESteel=200GPa

Thermal stress in Al shell (in MPa):?

Answer 1

steel core, what is the thermal stress in the aluminum shell when the system is heated from the unstressed state (20∘C) to 180∘C? Consider only deformations in the axial directions. Give your answer in MPa

αAl=23.6×10−6K−1

EAl=70GPa

αSteel=11.7×10−6K−1

ESteel=200GPa

Thermal stress in Al shell (in MPa):?

Answer 2

-48.87315Mpa