Composite Beams using Transform Area Method!

Question 6-130: The beam is made from three types of plastic that are identified and have the moduli of elasticity shown in the figure. Determine the maximum bending stress in the PVC.
If you have any recommendations for future problems, or have suggestion for tutorials in the future, feel free to leave a comment!

[@simple_civil]

Hope this video was helpful for you! If you have any questions, let me know!

[@solaire7046]

Very helpful, got this in my exam and was trying to figure out how this was done for the longest time, though in metric. Would you get the same answer if you converted everything to Bakelite and then used the transformation factor on on the pvc answer afterwards?

[@simple_civil]

Yes you would! The trick is at the end, when using the flexure formula, you need to use the modular ratio to convert the bakelite back into PVC to get the equivalent stress in the PVC. Love reading comments like this, glad I could help!