Stress Distribution Diagram and Bending Stress Introduction - Strength of Materials

TL;DR

Bending stresses are the internal resistance to external forces that cause bending in a beam.

Transcript

hello students today we are starting with a new chapter the name of the chapter is we are starting with bending stresses we have seen what is compressive stress and we have even seen what is shear stress okay now we are dealing with another term called as bending stresses tk now what is the meaning of this see here suppose if i have a horizontal se... Read More

Key Insights

• 😁 Bending stresses are developed in beams when a load is applied, causing the beam to bend in a curved form.
• ❓ Bending stresses are the result of the internal resistance to external forces.
• 💬 The unit of measurement for bending stress is newton per mm square.
• 🤬 Bending stresses can be denoted by the symbol sigma (σ).
• 😁 Simply supported beams are supported at their extreme ends.
• 😁 Cantilever beams are supported at one end and project outward.
• 😁 Bending stresses are only concerned with the bending of a beam, not shearing.

Questions & Answers

Q: What are bending stresses?

Bending stresses are the internal resistance to external forces that cause a member, such as a beam, to bend in a curved form.

Q: How are bending stresses denoted?

Bending stresses are denoted by the symbol sigma (σ), and the unit of measurement is newton per mm square.

Q: What causes bending stresses in beams?

Bending stresses in beams are caused by the load applied to the horizontal section, which results in the beam bending in a curved form.

Q: What is the difference between a simply supported beam and a cantilever beam?

A simply supported beam is supported at its extreme ends, while a cantilever beam is supported at one end and projects outward.

Summary & Key Takeaways

• Bending stresses are developed in beams when a load is applied, causing the beam to bend in a curved form.

• Bending stresses are the internal resistance to external forces that cause bending in a member.

• The unit of bending stress is denoted by sigma (σ) and is measured in newton per mm square.