Report No. 1

 

3- Problem:

In a cylinder of bore 70 mm the pressure is 4 N/mm2.The cover plate is secured by M10 studs with a required SF of 12.

Determine the minimum number of studs using

a) EN1A

b) EN3

 

Given:

D = 70 mm

p = 4 N/mm2

Studs M10

SF = 12

Materials:

a)      EN1A

b)      EN3

Required:

n (number of studs) in case a) and b)

Solution:

d M10 = 8.16 (From Chart 11)

a) Steel EN1A

σst= 420 N/mm2

b) Steel EN3

σst= 460 N/mm2