Example problem 1-1
4
EXAMPLE PROBLEM 1-1 A flat steel bar has axial load applied at points A,B,C and D as shown in fig if the bar has a cross-sectional area of 3 in 2 determine the axial stress in the bar. (a) on a cross section 20 in . To the right of point A . (b) on a cross section 20 in.to the right of point B. (c) on a cross section 20 in .the right of point C.
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A flat steel bar has axial load applied at points A,B,C and D as shown in fig if the bar has a cross-sectional area of 3 in 2 determine the axial stress in the bar. (a) on a cross section 20 in . To the right of point A . (b) on a cross section 20 in.to the right of point B. - PowerPoint PPT Presentation
Transcript of Example problem 1-1
EXAMPLE PROBLEM 1-1
A flat steel bar has axial load applied at points
A,B,C and D as shown in fig if the bar has a cross-sectional area of 3 in2 determine the axial stress in the bar.
(a) on a cross section 20 in . To the right of point A .
(b) on a cross section 20 in.to the right of point B.
(c) on a cross section 20 in .the right of point C.
30” 45” 40” 81kip
54kip 18kip
45kip
A B C D
EXAMPLE PROBLEM 1-2
The round bar shown if fig has stell,brass,and aluminum sections. axial loads are applied at cross sections A,B,C and D. if the allowable axial normal stresses are 125 Mpa in the steel,70Mpa in the brass,85Mpa in the aluminum, determine the diameters required for each of the sections.
270KN245KN
200KN225KN
A steel
B Brass
C Aluminum
D
0.5m0.5m
0.5m
