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2021-12-21 15:33:45 +00:00
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@@ -500,7 +500,7 @@ E &= \frac \sigma \epsilon = 2513836.686 = 2.5\times10^6 \text{ Pa}
## Poisson's Ratio ## Poisson's Ratio
For most materiajs, their cross sectionts change when they are stretched or compressed. For most materials, their cross sectionts change when they are stretched or compressed.
This is to keep their volume constant. This is to keep their volume constant.
$$ \epsilon_x = \frac {\Delta L}{L_0} $$ $$ \epsilon_x = \frac {\Delta L}{L_0} $$