Differences

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--- faq [2022/11/04 12:08]
jan.dejong
+++ faq [2023/11/09 22:30] (current)
marijn.nijenhuis [3. Changing units]
@@ Line 58: / Line 58: @@
   * material density (''eprops(i).dens''): default unit is kg/m^3 so density scales as 1/L^3.
   * cross-sectional dimensions (''eprops(i).dim''): default unit is m so these dimensions scale as L.
-  * gravitational acceleration (''opt.gravity''): default unit is m/s^2 so acceleration scales as 1/L.
+  * gravitational acceleration (''opt.gravity''): default unit is m/s^2 so acceleration scales as L.
 In other words, if your script assumes meters as the unit for length, and you want to go to millimeters, the ''nodes'' matrix should be multiplied by 10^3. Likewise, the forces should be multiplied by 10^3, the moments by 10^6, the elasticity and shear modulus by 10^(-3), and all other quantities according to the list above.

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