Bending Moment
Bending moment at section of a beam is defined as the algebraic sum of the moments about the section as all the forces an one side of the section.
- Valid only when there is no concentric load between ends.
Here, W=Load per unit length
- A negative slope represents downward loading.
- The rate of change of bending moment along the length of the beam is equal to the shear force.
dM/dx = Sx - Valid only when there is no couple between ends considered.
- At the hinge, the bending moment will be zero.
- Bending moment is maximum when shear force is zero.
- If degree of loading curve = n then
⇒ degree of shear force = n + 1
⇒ degree of bending moment = n + 2 - The point of contraflexure/inflection is that point where the bending moment changes its sign.
Dear Aspirants,
Your preparation for GATE, ESE, PSUs, and AE/JE is now smarter than ever — thanks to the MADE EASY YouTube channel.
This is not just a channel, but a complete strategy for success, where you get toppers strategies, PYQ–GTQ discussions, current affairs updates, and important job-related information, all delivered by the country’s best teachers and industry experts.
If you also want to stay one step ahead in the race to success, subscribe to MADE EASY on YouTube and stay connected with us on social media.
MADE EASY — where preparation happens with confidence.
MADE EASY is a well-organized institute, complete in all aspects, and provides quality guidance for both written and personality tests. MADE EASY has produced top-ranked students in ESE, GATE, and various public sector exams. The publishing team regularly writes exam-related blogs based on conversations with the faculty, helping students prepare effectively for their exams.
