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ptanner706
21.06.2021 •
Chemistry
A steel with a critical fracture toughness of 150 MPa.m1/2 has a yield strength of 1500 MPa. If fracture were to take place at the yield stress, answer the following questions.
Surface crack size at yielding leading to failure is:.
a. 0.497 cm
b. 0.994 cm
c. 0.32 cm
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Ответ:
c.
Explanation:
From the given information:
Critical fracture toughness
= 150 MPa.![m ^{1/2}](/tpl/images/1380/2800/47895.png)
yield strength
= 1500 MPa
surface crack size
= ???
The formula for the fracture toughness is can be expressed as:
replacing our values to solve for the surface crack size, we have:
Ответ:
They both are white crystal...
Explanation: