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Why the thermal stress changed over time with the temperature was keeping the same?
Posted 10 août 2011, 22:03 UTC−4 1 Reply
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The details as follow:
Attach file gives the thermal stress and the temperature changed over time at the same point.
Figure 1: thermal stress over time
Figure 2: temperature over time
I don't know why Figure 2 is a line, but Figure 1 is a curve with some pulsation.
thermal stress=alpha*(T-Tref), alpha and Tref are both constants, if T is keeping constant, why the thermal stress changed?
Thank you very much! Any advice is appreciated!
Yajuan
Attach file gives the thermal stress and the temperature changed over time at the same point.
Figure 1: thermal stress over time
Figure 2: temperature over time
I don't know why Figure 2 is a line, but Figure 1 is a curve with some pulsation.
thermal stress=alpha*(T-Tref), alpha and Tref are both constants, if T is keeping constant, why the thermal stress changed?
Thank you very much! Any advice is appreciated!
Yajuan
Attachments:
1 Reply Last Post 11 août 2011, 01:10 UTC−4
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Posted:
1 decade ago
But the thermal stress doesn't change : 49MPa. Look the axis.