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Stress of a material with a core

by joeblow
Tags: core, material, stress
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Feb20-13, 11:52 AM
P: 71
If I have a rod with a steel core bonded to an aluminum shell, how can I find the stress in the rod when it is subjected to a temperature change?

I know how to find the stress due to temp change if the tool is made of the same material throughout, but how do I do it if there are two?

I attempted to find the loads induced by the temp changes for the two materials separately, add them, then find the stress that way, but this led to an incorrect answer.
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Feb20-13, 03:05 PM
P: 71
Figured it out. PROTIP: Equate the deformations of both materials.

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