You have been given the following test sample data following mechanical testing of 15 test pieces of Silicon Nitride. What is the Weibull modulus of this material? Would you advise the use of a similar material with a Weibull Modulus of 16.3 and a mean failure stress of 485 MPa, if you anticipate that the peak stress on the material could be 430 MPa?

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 Silicon Nitride.
What is the Weibull modulus of this material?
Would you advise the use of a similar material with a Weibull Modulus of 16.3 and a
mean failure stress of 485 MPa, if you anticipate that the peak stress on the material
could be 430 MPa?
Sample
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
Select one or more:
O a. No
O b. 18.6
O C.
13.4
O d. Yes
O e. 15.7
f. 17.1
Failure Stress (MPa)
423
459
496
432
447
467
473
499
485
479
505
530
526
490
510
<
Transcribed Image Text:You have been given the following test sample data following mechanical testing of 15 test pieces of Silicon Nitride. What is the Weibull modulus of this material? Would you advise the use of a similar material with a Weibull Modulus of 16.3 and a mean failure stress of 485 MPa, if you anticipate that the peak stress on the material could be 430 MPa? Sample 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 Select one or more: O a. No O b. 18.6 O C. 13.4 O d. Yes O e. 15.7 f. 17.1 Failure Stress (MPa) 423 459 496 432 447 467 473 499 485 479 505 530 526 490 510 <
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