Calculate Maximum Load of a U Bracket

AI Thread Summary
To calculate the maximum load of a U bracket with a pin hole, it's essential to consider the impact of stress concentration due to the hole. The presence of the hole can significantly weaken the bracket, necessitating the use of stress concentration factor calculators to determine the adjusted load capacity. Bending stress calculations alone may not suffice, as the geometry and size of the hole influence the overall strength. Analyzing the bracket's material properties and applying appropriate engineering principles will provide a more accurate assessment. Understanding these factors is crucial for ensuring the bracket can safely support the hydraulic cylinder's load.
roboemperor
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I have a hydraulic cylinder that can lift up to 3 metric tons and I want to attach it to an arm.

The bracket is in a rigid U shape (right angles only, no round corners), with a round pin going through it.

At first I thought it'd be a simple bending stress calculation, but there is a giant hole in the bracket for where the pin will be inserted.

So... how should I approach this problem? How do you calculate how much weaker the bracket will be with the pin hole?
 
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