- #1
xJJx
- 56
- 2
Hi, I'm quite stuck on this past paper question and would really appreciate some help on it. Below I have attached the questions and solutions; it asks me to determine where the maximum tensile and compressive strain in the beam using the bending moment diagram (attached as separate figure below). I'm confused at how a bending moment can let you know where the max tensile/compressive stress/strain would be, i thought a sagging moment causes both tensile and compressive stress (tensile at bottom, compressive at top)? same with a hogging moment (tensile at top, compressive at bottom). Can anyone explain why they did this? thank you.