A bracket is shown welded to a vertical column by means of two fillet welds. The bending stress induced in the welds can be given by

Find the bending stress in the top weld is_______, if thickness of weld is 't'. Given P=15kN and e=120mm, y=50mm and I = 250000 t

Testing the ultimate strength of the weld falls in non-destructive examination.

Martin’s factor compensates for curvature effect in springs.

The angle of twist for the equivalent bar to a spring is given by?

A spring of stiffness constant k is cut in two equal parts. The stiffness constant of new spring will be k/2.

Find the Wahl’s factor if spring index is 6.

Find the shear stress in the spring wire used to design a helical compression spring if a load of 1200N is applied on the spring. Spring index is 6, and wire diameter 7mm.

Find total number coils in a spring having square and ground ends. Deflection in the spring is 6mm when load of 1100N is applied. Modulus of rigidity is 81370N/mm². Wire diameter and pitch circle diameter are 10mm and 50mm respectively.

A railway wagon moving with a speed of 1.5m/s is brought to rest by bumper consisting of two springs. Mass of wagon is 100kg. The springs are compressed by 125mm. Calculate the maximum force acting on each spring.

Can concentric springs be used to obtain a force which is not proportional to its deflection?

A concentric spring consists of 2 springs of diameter 10mm and 4mm. The net force acting on the composite spring is 5000N. Find the force acting on each of the two springs.

If the spring have same solid length and number of coils in the two springs are 8 and 10, then find the diameter of the spring with 8 coils. It is given diameter of spring with 10 coils is 12mm.

Propagation of fatigue failure is always due to compressive stresses.