ce121 lecture 14 03-13-2014
TRANSCRIPT
CE 121: Mechanics of Materials
Chapter 7 – Transverse Shear
Learning Objectives
Understand the concept of transverse shear stress
Calculate shear stress on a given cross section
*** Transverse and Longitudinal shear stresses are complimentary
Effect of Bending : Shear
Effect of Bending : Shear
Shear formula
Shear formula
Shear formula
From bending stress equation
Shear formula
V
Example
7–1. If the wide-flange beam is subjected to a shear of V = 20 kN, determine the shear stress on the web at A.
Example
7–11. The overhang beam is subjected to the uniform distributed load having an intensity of w = 50 kN/m. Determine the maximum shear stress developed in the beam.
Example
7–27. The beam is slit longitudinally along both sides as shown. If it is subjected to an internal shear of V = 250 kN, compare the maximum shear stress developed in the beam before and after the cuts were made.