Find the max shear stress in a 200mm tall, 150mm wide rectangular cross section using the appropriate reduced shear stress equation. Assume Vmax = 12kN. Find the max shear stress in a W12x50 cross-section using the appropriate estimated shear stress equation. Assume Vmax = 236kips. Find the max shear stress in bending in the cross section below if Vmax = 10 kips.

Mechanics of Materials (MindTap Course List)
9th Edition
ISBN:9781337093347
Author:Barry J. Goodno, James M. Gere
Publisher:Barry J. Goodno, James M. Gere
Chapter6: Stresses In Beams (advanced Topics)
Section: Chapter Questions
Problem 6.8.3P: A beam of wide-flange shape, W 8 x 28, has the cross section shown in the figure. The dimensions are...
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Find the max shear stress in a 200mm tall, 150mm wide rectangular cross section using the appropriate reduced
shear stress equation. Assume Vmax = 12kN.
Find the max shear stress in a W12x50 cross-section using the appropriate estimated shear stress equation.
Assume Vmax = 236kips.
Find the max shear stress in bending in the cross section below if Vmax = 10 kips.
10"
Flange
2"
Web
2"
8"
Flange
2"
10"
• Identify where in the cross section the max shear will occur.
• Determine the thickness of the cross-section at the location you wish to find shear stress.
• Calculate the Ix for the shape (assume bending in the x with most basic beams).
• Calculate Q by dividing the section into two pieces at the point you want shear stress. Select one of the
pieces (either will work), I picked the top piece.
• Use the Shear Stress equation to determine the requested stress.
• Compare you answer: Max shear stress = at the center of the cross section.
Transcribed Image Text:Find the max shear stress in a 200mm tall, 150mm wide rectangular cross section using the appropriate reduced shear stress equation. Assume Vmax = 12kN. Find the max shear stress in a W12x50 cross-section using the appropriate estimated shear stress equation. Assume Vmax = 236kips. Find the max shear stress in bending in the cross section below if Vmax = 10 kips. 10" Flange 2" Web 2" 8" Flange 2" 10" • Identify where in the cross section the max shear will occur. • Determine the thickness of the cross-section at the location you wish to find shear stress. • Calculate the Ix for the shape (assume bending in the x with most basic beams). • Calculate Q by dividing the section into two pieces at the point you want shear stress. Select one of the pieces (either will work), I picked the top piece. • Use the Shear Stress equation to determine the requested stress. • Compare you answer: Max shear stress = at the center of the cross section.
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