Bending Stress - Strengths of Materials

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This video shows how to solve for the bending stress when a beam experiences external loads. The main application for the Shear and Moment Diagrams is for the design of a beam and to ensure it does not fail given the yield stress of the material vs the bending stress developed in the beam. It’s a good idea to refresh oneself on the Shear and Moment Diagrams, Area Moment of Inertia - Parallel Axis Theorem, and finding the Centroid of an Area.

(0:00) Bending Stress
(2:32) Compressive and Tensile Stresses Developed due to Bending
(4:37) Bending Stress Equation
(7:51) Problem statement: The aluminum machine part is subjected to a moment of M = 75 N-m. Determine the maximum tensile and compressive bending stresses in the part.

Videos for Review:

Shear and Moment Diagrams
   • Shear and Moment Equations and Diagrams - ...  
   • Shear and Moment Diagrams with Distributed...  

Area Moment of Inertia
   • Area Moment of Inertia - Parallel Axis The...  

Centroid of an Area
   • Centroid of an Area - Statics  
   • Centroid of Composite Areas - Statics  

Distributed Loads
   • Reduction of Distributed Loading - Statics