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calculating thermal

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tegojoe

tegojoe

Mechanical
Joined
Dec 2, 2006
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How do I calculate the volume thermal expansion of an aluminum part? My concern is that their are several parts in this assembly that this will affect. Thank you for the assistance.
 
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If the part is all aluminum, the volume thermal expansion is 3 times the linear. The linear coefficient is about 13 microinches/inch per deg F near room temperature. So the volume coefficient would be 3x13 microinches^3 per cubic inch per deg F. For other temperatures, the formula holds.
 
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CORRECTION
The answer should be 3*13*10^-6 in^3/in^3/ deg F for volume coeff to make it more accurately stated, given that the linear was
13*10^-6 in/in/degF
 
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