Beam deflection question: What are ksi and GPa. What is a Pascal?

My second question is: Moment of intertia seems to be in units of distance ^4. This being the case, it doesnt look like I can take a metric program and enter English units and expect it to work.

I have a program that works in mm and Newtons.

Answer:
I am also a GWbasic & Visual Basic programmer
moment of inertia have a definite formula for different geometric figures
English unit - use feet, lbs, slug for mass, gravity = 32.2 ft/sec^2
Metric - use meter, Kg., gravity = 9.81 m/sec^2
Si - use Kg as mass, Newton as force, Pascal for stress = F / A
CGS - use cm, gram, dynes force, gravity = 980

visit our school web site for my free download programs

cpu.edu.ph - look at the lower right sign free download
ksi = 1000 lbs/square in

Pascal = N/m^2

Dont use a program, just do the math by hand.
english units are metric

moments of inertia are usually expressed in cm^4

ksi is american not english and GPa is gigga pascals or N/m^2 / 10E6
The English System is not metric.

There is no "American" system.

America uses the English System (Well, at least most of it, except for some weights and measures).

For your metric program, just convert the English units to Metric.
Go on the internet and print a good set of conversions, there are hundreds available.

Download the following program of conversion factors...it is free and I have been using it for years.

http://joshmadison.com/software/convert/...
*ksi=1000 psi
*1 gigapascal = 1 000 000 000 pascal
*The pascal (symbol: Pa) is the SI derived unit of pressure or stress.
It is a measure of perpendicular force per unit area i.e. equivalent to one newton per square meter. In everyday life, the pascal is perhaps best known from meteorological air-pressure reports, where it occurs in the form of hectopascal (1 hPa = 100 Pa).
In other contexts, the kilopascal is more commonly used, for example on bicycle tire labels. One hectopascal corresponds to about 0.1% and one kilopascal to about 1% of atmospheric pressure (near sea level).

*1 pascal (Pa) ≡ 1 N·m−2 ≡ 1 J·m^−3 ≡ 1 kg·m^−1·s^−2
*Moment of inertia, also called mass moment of inertia and, sometimes, the angular mass, (SI units kg m², Former British units slug ft2), is the rotational analog of mass. That is, it is the inertia of a rigid rotating body with respect to its rotation. The symbols I and sometimes J are usually used to refer to the moment of inertia.
http://en.wikipedia.org/wiki/moment_of_i...

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