You have been given the following test sample data following mechanical testing of 15 test pieces of a modified Alumina. What is the Weibull modulus of this material? Would you advise the use of this material over one with a Weibull Modulus of 19.6 and a mean failure stress of 270 MPa, if you anticipate that the peak stress on the material could be 255 MPa? Sample 1 ~3456780 2 9 10 11 12 13 14 15 Failure Stress (MPa) 297 293 270 300 260 286 265 295 293 280 288 263 290 298 275

Elements Of Electromagnetics
7th Edition
ISBN:9780190698614
Author:Sadiku, Matthew N. O.
Publisher:Sadiku, Matthew N. O.
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You have been given the following test sample data following mechanical testing of 15
test pieces of a modified Alumina.
What is the Weibull modulus of this material?
Would you advise the use of this material over one with a Weibull Modulus of 19.6 and a
mean failure stress of 270 MPa, if you anticipate that the peak stress on the material could
be 255 MPa?
Select one or more:
a. 28.6
b. 3.7
О с.
Sample
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
e.
d. Yes
22.8
g.
No
O f. 4.9
18.5
Failure Stress (MPa)
297
293
270
300
260
286
265
295
293
280
288
263
290
298
275
Transcribed Image Text:You have been given the following test sample data following mechanical testing of 15 test pieces of a modified Alumina. What is the Weibull modulus of this material? Would you advise the use of this material over one with a Weibull Modulus of 19.6 and a mean failure stress of 270 MPa, if you anticipate that the peak stress on the material could be 255 MPa? Select one or more: a. 28.6 b. 3.7 О с. Sample 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 e. d. Yes 22.8 g. No O f. 4.9 18.5 Failure Stress (MPa) 297 293 270 300 260 286 265 295 293 280 288 263 290 298 275
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