SOLID MECHANICS 1:

TUTORIAL CHAPTER 1

MARCH 2015

1

Determine the resultant internal loadings acting on

the cross section at point B of the beam shown in

Fig. below

TUTORIAL 1

2

3

(Exp 1.2) Determine the resultant internal loadings acting on

the cross section at C of the machine shaft shown in Fig.

2a. The shaft is supported by bearings at A and B, which

exert only vertical forces on the shaft.

4

TUTORIAL 2

5

(Q1.1) Determine the

resultant internal

normal force acting

on the cross section

through point A in

each column.

In (a), segment BC

weighs 300 kg/m and

segment CD weighs

400kg/m.

In (b), the column has

a mass of 200 kg/m.

6

TUTORIAL 3

7

(Q1.5) Determine the resultant internal loadings in the beam at

cross section through points D and E. Point E is just to the right of

the 15 kN load.

8

TUTORIAL 4

9

10

(Q1-36) The bars of the truss each have a cross-sectional

area of 780 mm^2. If the maximum average normal stress in

any bar is not to exceed 140 MPa, determine the maximum

magnitude P of the loads that can be applied to the truss.

11

TUTORIAL 5

12

13

The wood specimen is subjected to the pull of

10 kN in a tension testing machine. If the

allowable normal stress for the wood is (t)allow = 12 MPa and the allowable shear stress is

allow =1.2 MPa, calculate the required

dimensions b and t so that the specimen

reaches these stresses simultaneously. The

specimen has a width of 25 mm.

14

TUTORIAL 6

-- ASSIGNMENT

DUE ON 12TH

MARCH

(THURSDAY) 5% CARRY MARKS