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Question 4 A bolt weighting 10 N is accidently dropped down a 4 m long vertical...

Question 4

A bolt weighting 10 N is accidently dropped down a 4 m long vertical cast-iron pipe which is closed by means of a rigid flange at the end. Calculate:

4.1       The instantaneous stress induced in the material of the pipe if the inside diameter of the pipe is 200 mm and the pipe wall thickness is 10 mm.                        

4.2       The instantaneous elongation of the pipe.                                                     

4.3       The gradually applied load that would produce the same stress as in 4.1.   

            E = 140 GPa

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