Calculate the stress developed inside a tooth cavity that filled with copper. When hot tea at temperature 57^(@)C is drunk. You can take body (tooth) temperature to be 37^(@)C and alpha = 1.7 xx 10^(-5//""^(@))C bulk modules for copper = 140 xx 10^(9) Nm^(–2).

Calculate the stress developed inside a tooth cavity that filled with

1.	Calculate the stress developed inside a tooth cavity that filled with copper. When hot tea at temperature 57^(@)C is drunk. You can take body (tooth) temperature to be 37^(@)C and alpha = 1.7 xx 10^(-5//""^(@))C bulk modules for copper = 140 xx 10^(9) Nm^(–2).
Answer» <html><body><p></p>Solution :<a href="https://interviewquestions.tuteehub.com/tag/thermal-706916" style="font-weight:bold;" target="_blank" title="Click to know more about THERMAL">THERMAL</a> stress = Kx strain = `(KDeltaV)/(V)` <br/> Now , `"" <a href="https://interviewquestions.tuteehub.com/tag/gamma-470142" style="font-weight:bold;" target="_blank" title="Click to know more about GAMMA">GAMMA</a>= (DeltaV)/(VDeltaT) or (DeltaV)/(V)=gammaDeltaT`<br/> Thermal stress `=K gamma DeltaT= <a href="https://interviewquestions.tuteehub.com/tag/3k-310983" style="font-weight:bold;" target="_blank" title="Click to know more about 3K">3K</a> alpha DeltaT "" [because gamma=3alpha]`<br/> `=3xx140xx10^(9)xx1.7xx10^(-5)xx20` <br/> `=1.428xx10^(8)Nm^(<a href="https://interviewquestions.tuteehub.com/tag/2-283658" style="font-weight:bold;" target="_blank" title="Click to know more about 2">2</a>)`</body></html>