Calculate 90 Degree Pipe Elbow Centroid with Excel or MathCAD

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SUMMARY

The discussion focuses on calculating the centroid of a 90-degree pipe elbow using Excel or MathCAD. Participants suggest that creating a CAD model can help visualize the centroid's location, while mathematical approaches involve using integrals or discrete summation techniques. The centroid calculation is based on the geometry of the elbow, specifically utilizing the radius of the bend and the angle theta, with the formulas \(\bar{x}=r\sin\theta\) and \(\bar{y}=r\cos\theta\) being highlighted as essential for determining the centroid's coordinates.

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Engineers, CAD designers, and students in mechanical engineering or related fields who are involved in geometric calculations and want to enhance their skills in centroid determination for pipe fittings.

Don Watson
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Looking for 90 degree pipe elbow centroid Excel or MathCAD calculation.
 
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Why don't you draw a Cad model and 4m there u may know the exact location of centroid...
 
You could write an integral, or just use excel to do a discrete sum. Since the elbow is simply an body of revolution about a fixed point in space, you summation will be something along the lines of the radius of the bend times a tapered cylinder.

The centroid of that "slice" will just be a function of theta (i.e \bar{x}=r\sin\theta\,\,\,\,\bar{y}=r\cos\theta).
 

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