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A helical compression spring is used to take the shock. The initial compression of the spring is 30 mm and it is further compressed by 50 mm while absorbing the shock. The spring is to absorb 250 J of energy during the procedure. The spring index will be taken as 6. The spring is made of patend and cold drawn steel wire with ultimate tensile strength of 1500 N/mm2 and modulus of rigidity of 81370 N/mm2 . The permissible shear stress for the spring wire could be taken as 30 % of the ultimate tensile strength. Design the spring.
rankine hypothesis of critical load for columns
Q. Explain Double Bolting? Where low strength bolts must be used, initial bolting with higher strength low temperature bolts may be necessary to minimize accumulative strain an
Stress Distribution in Beams: 1. learn the section modulus of beams of several cross section. 2. found the normal force for partial beam section & its moment around the neu
(a) What is the function of a spark plug? (b) What are the types of spark plugs? Point out the differences between them. (c) Describe the construction of a spark plug with th
A column of timber section 15cm x 20cm is 6 meter long both side being fixed. If the youngs modulus for timber is 17.5 KN/mm 2 , Evaluate: a) Crippling load and b) Safe load
The Supplier/Subcontractor shall submit, for acceptance, their Material Traceability and PMI program and procedures, which shall comply with this specification, prior to the sourci
Stress in thin rotation rims
At a fixed point in a strained material the intensities of normal stress on the planes at right angles to each other are 20 N/mm 2 and 10 N/mm 2 . Evaluate the principal stresses
Find the tangential and normal components of acceleration: A fly wheel along diameter 400 mm begins from rest with constant angular acceleration 2 rad/sec 2 . Find out the tan
RESISTANCE WELDING The types are as follows: Resistance Spot Welding Resistance Seam Welding Projection Welding Flash Butt Welding Flash Butt Welding Stit
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