In the last week, I experienced 2 failures on the rollback prevention devices on the lift hill. Both cracked along the length of the 2 x 4. Why is this happening and how can we prevent it?
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Video-Why Did This Break-Transverse Shear Failure
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Video - Stress Free Method to Combine Multiple Normal and Shear Stresses
In addition to combining shear and normal stresses with Mohr’s circle, we also need to know how to add stresses from multiple sources. Some stresses add linearly but others add by the square root...
Combining loads and stresses is a difficult task. We’ve all learned Mohr’s circle in college, but there was so much information presented. We’ve boiled it down to what you actually need to know...
