A mechanic uses a crowfoot wrench to loosen a holt at E. Knowing that the mechanic applies a vertical 24-lh force at A. determine the principal stresses and the maximum shearing stress at point H located as shown on top of the -in. diameter shaft.

Question-AnswerCategory: Strength of MaterialsA mechanic uses a crowfoot wrench to loosen a holt at E. Knowing that the mechanic applies a vertical 24-lh force at A. determine the principal stresses and the maximum shearing stress at point H located as shown on top of the -in. diameter shaft.
Beer Johnston asked 12 months ago

A mechanic uses a crowfoot wrench to loosen a holt at E. Knowing that the mechanic applies a vertical 24-lh force at A. determine the principal stresses and the maximum shearing stress at point H located as shown on top of the -in. diameter shaft.

Mazurek Gravity answered 12 months ago

Step No: 1

Force applied on a wrench vertically
Diameter of a shaft
Equivalent force – couple system at center of shaft in section at point H
Vertical force
Moment of shaft

Torque

Step No: 2

Shaft cross – section

Polar moment of inertia

Moment of inertia

Step No: 3

Torsion

Step No: 4

Bending

Step No: 5

Transverse shear at point H stress due to transverse shear is zero
Resultant stresses

Step No: 6

Average stress

Step No: 7

Maximum shear stress

Step No: 8

Maximum stress

Minimum stress

Maximum shear stress (in plane )