Below is the stress (o = Ee) vs strain (e = 4) behavior of oxygen-free copper (OFC) wires (W8) at 293 K and 77 K compared to conventional (Convtl) copper wires of the same diameter at 293 K.

Elements Of Electromagnetics
7th Edition
ISBN:9780190698614
Author:Sadiku, Matthew N. O.
Publisher:Sadiku, Matthew N. O.
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Below is the stress (o = Ee) vs strain (e = 4) behavior of oxygen-free copper (OFC) wires (W8) at 293 K
and 77 K compared to conventional (Convt) copper wires of the same diameter at 293 K.
900
800
W8, 77 K
700
W8, 293 K
600
500
400
Conv".
wire,
293 K
300
200
100
0 1 2
3
4 5
6 7 8
9.
E [%]
Engineering stress [MPa]
Transcribed Image Text:Below is the stress (o = Ee) vs strain (e = 4) behavior of oxygen-free copper (OFC) wires (W8) at 293 K and 77 K compared to conventional (Convt) copper wires of the same diameter at 293 K. 900 800 W8, 77 K 700 W8, 293 K 600 500 400 Conv". wire, 293 K 300 200 100 0 1 2 3 4 5 6 7 8 9. E [%] Engineering stress [MPa]
Calculate the elongation (elastic) that can be achieved when a 560-mm long OFC wire is subjected to a stress
of 185 MPa at 293 K.
Al =
mm
For the same length and stress, what is the elongation at 77 K?
Al =
mm
Transcribed Image Text:Calculate the elongation (elastic) that can be achieved when a 560-mm long OFC wire is subjected to a stress of 185 MPa at 293 K. Al = mm For the same length and stress, what is the elongation at 77 K? Al = mm
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