Q3/ A compound bar is held between two supports as shown in figure 2. If the temperature of the bar is raised from 25°C to 75°C, find the stresses induced in each rod by assuming (a) if the supports do not yield and (b) if the supports yield by 0.25 mm. Take E1 = 200 kN/mm2, E2 = 30 kN/mm2, E3 = 100 kN/mm2, And, a1= 1.2 x %3D 10-5/°C, a2= 1.8 x 10-5/°C, a3= 1.6 x 10-5/°C

Elements Of Electromagnetics
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"ll zain 1Q
۲۸ مارس، ۲۰۲۱
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Q3/ A compound bar is held between two
supports as shown in figure 2. If the
temperature of the bar is raised from 25°C
to 75°C, find the stresses induced in each
rod by assuming (a) if the supports do not
yield and (b) if the supports yield by 0.25
mm. Take E1= 200 kN/mm2, E2 = 30
kN/mm2, E3 = 100 kN/mm2, And, a1= 1.2 x
10-5/°C, a2= 1.8 x 10-5/°C d3= 1.6 x 10-5/°C
Q3/ *
0= 150 mm
0= 100 mm
0= 50 mm
Figure 2
200 mm
300 mm
500 mm
(1) 01= 194.78 N/mm2, a2= 48.7 N/mm2,
03= 21.64 N/mm2/(2) 01= 133.14
N/mm2, 02 33.28 N/mm2, a3= 14.79
N/mm2
(1) 01- 184 3anm2, 92- 44.73 N/mm2.
03- 24.64 N/min2/ (2) a1 143.14
N/mm2 o2 36 21 N/mm2, 03-14.79
N/mm2
(1) a1- 190.28 N/mm2, 02 48.26 N/mm2,
Transcribed Image Text:"ll zain 1Q ۲۸ مارس، ۲۰۲۱ -> docs.google.com/forms/d/e Q3/ A compound bar is held between two supports as shown in figure 2. If the temperature of the bar is raised from 25°C to 75°C, find the stresses induced in each rod by assuming (a) if the supports do not yield and (b) if the supports yield by 0.25 mm. Take E1= 200 kN/mm2, E2 = 30 kN/mm2, E3 = 100 kN/mm2, And, a1= 1.2 x 10-5/°C, a2= 1.8 x 10-5/°C d3= 1.6 x 10-5/°C Q3/ * 0= 150 mm 0= 100 mm 0= 50 mm Figure 2 200 mm 300 mm 500 mm (1) 01= 194.78 N/mm2, a2= 48.7 N/mm2, 03= 21.64 N/mm2/(2) 01= 133.14 N/mm2, 02 33.28 N/mm2, a3= 14.79 N/mm2 (1) 01- 184 3anm2, 92- 44.73 N/mm2. 03- 24.64 N/min2/ (2) a1 143.14 N/mm2 o2 36 21 N/mm2, 03-14.79 N/mm2 (1) a1- 190.28 N/mm2, 02 48.26 N/mm2,
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