Find the maximum torque - i-section, Mechanical Engineering

Find the maximum torque - I-section:

An I-section 150 × 80 mm has flanges 6 mm thick and web 4 mm thick. Discover the maximum torque that may be safely applied if the shear stress is limited to 30 N/mm2 and twist per metre length to 6o. G = 80 GPa.


∑ h t 2  = 2 × 80 × 62  + 150 × 42  = 8160 mm3

T = τmax . (1/3) (∑ h t 2 ) = 30 × (1 /3) × 8160 = 81, 600 N-mm

∑ h t3  = 2 × 80 × 63  + 150 × 43  = 44,160 mm4

θ=        3Tl  / G (∑ h t3 )


⇒         6 × (π /180) =        3T × 1000 / (80 × 103 × 44160)

∴          T = 123318 N-mm

∴ T = 44,160 N-mm (least value).

Posted Date: 1/21/2013 5:19:38 AM | Location : United States

Related Discussions:- Find the maximum torque - i-section, Assignment Help, Ask Question on Find the maximum torque - i-section, Get Answer, Expert's Help, Find the maximum torque - i-section Discussions

Write discussion on Find the maximum torque - i-section
Your posts are moderated
Related Questions
Advantages of Abrasive Jet Cutting Machines 1. Ability to cut brittle or heat sensitive material without damage. 2. Capability to cut intricate holes in material of any hard

heat pump to estimate the COP acts as refrigerator experiment abstract

Q. Safety considerations for storage tanks? Large storage tanks are potential fire hazards and should be located at a lower elevation than other occupancies to prevent liquids

Find out the velocity of the chain: Figure shows a metal chain ABC where portion BC is of length 0.4 metres and is hanging vertically, & portion AB of length 0.8 metres rests

A 228 kg log is pulled up a ramp by means of a rope that is parallel to the surface of the ramp. The ramp is inclined at 30.0° with respect to the horizontal. The coefficient of ki

Hammer/Mallet: Hammer is used to strike a job to bring it in shape or otherwise. It is made of carbon steel. The wooden handle does not allow the shock to hand but handles made in

Describe the following key terms: (i) Stream Line (ii) Path Line (iii) Streak Line (iv) Stream Function (v) Potential flow function (vi) Flow net

Objectives After studying this section, you should be capable to: define basic nature of plastics, differentiate between various types of plastics, define polym

Thrust: The net force exerted by a liquid on any shield in contact with it, is called as thrust of liquid. Pressure:  The thrust operated by a liquid per unit area of the fie

Force on String: A string ABCD , attached to the two fixed points A and D has two weight of 1000N each attached to it at points B and C . The weights rest with portio