MCG-3145 (Advanced Strength of Materials)

Ouiz No.l Time allowed: 25 minutesTotal Points: 10Name:

Student No:

Q--1:Determine the maximum stress in the steel rod shown in the figure below caused by amass of 4 kg falling fieely through a distance of lm. Consider two cases: one as shown inthe figure and another when the rubber washer is removed. For the steel rod assumeE=200 GPa, and for the washer, take ft = 4.5N/mm.

Prrn =

2nd July,2015.

t",

oC

t

,\ ls\,,

T((,-T

IJ"a ,^:o-sfgc l

A=* =- =* = l.6b )oz*MTof fGI-

kffim Hm,]ffin"cXeole in rhe.S'fts\-- ::11