Using separation of variables and Fourier methods, solve the conduction equation and verify that the temperature distribution

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Using separation of variables and Fourier methods, solve the conduction equation and verify that the temperature distribution (12.8.20) in Example 12.4 does indeed satisfy insulated conditions on the circular hole and properly matches conditions at infinity.

Equation 12.8.20

7,0) = 7/7 (r + 47) sint r T(r,0)

Data from example 12.4

We now investigate the localized thermal stresses around a traction-free circular cavity in a plane of

which yields the actual temperature field T(r,0) = 71 (r. (12.8.20) This solution can also be determined

with  (1 + k)k Using our previous polar coordinate stress combinations (10.2.12), we find or +00= Eaqa kr

1 I  b a LI J X

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