2 years ago

1. ELECTRICAL SHOCK

Engineering

1 answer:

lions [1.4K]2 years ago

3 0

Here’s some of them
6. J
7. I
10. O
13. F
14. E
15. N

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A fatigue test was conducted in which the mean stress was 90 MPa (13050 psi), and the stress amplitude was 190 MPa (27560 psi).

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Answer:

a) 280MPa

b) -100MPa

c) -0.35

d) 380 MPa

Explanation:

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stress amplitude $\sigma_a = 190MPa$

a) $\sigma_m =\frac{\sigma_max+\sigma_min}{2}$

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