A steel rod with a cross sectional area of 120 (mm] ^2 is stretched between two fixed points. The tensile load at 20°C is 4200N. What will be the stress at-25°C? a=11.7x [10] ^(-6)/°C and E = 200GPa. See figure 06. *

Materials Science And Engineering Properties
1st Edition
ISBN:9781111988609
Author:Charles Gilmore
Publisher:Charles Gilmore
Chapter9: Time, Temperature, And Mechanical Properties
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A steel rod with a cross sectional area of
120 (mm) ^2 is stretched between two
fixed points. The tensile load at 20°C is
4200N. What will be the stress at-25°C?
a=11.7x [10] ^(-6)/°C and E = 200GPA. See
figure 06. *
Figure 06
120 MPa
130 MPa
140 MPa
150 MPa
Transcribed Image Text:A steel rod with a cross sectional area of 120 (mm) ^2 is stretched between two fixed points. The tensile load at 20°C is 4200N. What will be the stress at-25°C? a=11.7x [10] ^(-6)/°C and E = 200GPA. See figure 06. * Figure 06 120 MPa 130 MPa 140 MPa 150 MPa
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