What is the difference between tau values obtained using the following two formu

Question

What is the difference between tau values obtained using the following two formulae? tau = VQ/It tau = V/A For what cross section shape does tau_max equal 3V/2A? Draw the distribution of shear stresses along the depth for a W (or I) steel cross section subjected to vertical shear. Explain why both equations from part 2(a) gives similar solutions for average shear stress within the web of the section if the area of web (A_w) is used instead of A. If the maximum vertical shear force acting through the cross section shown in Figure 2 is 100 kN, determine the maximum shearing stresses at points A and B. If the shear force is to be applied in the horizontal in-plane direction instead, determine the location of the shear force such that no twisting action occurs in the section.

Explanation / Answer

Hi,

Plz give thumbs up.

Answer a)

First formula is used when the structure is thin walled structure and shear flow is given while the second equation gives us the average shear stress of a body.

b) For rectangular section shear stress = 3V/2A

Related Questions

Navigate

• Browse (All)
• Browse W
• Subjects

---

---

Integrity-first tutoring: explanations and feedback only — we do not complete graded work. Learn more.