What is a smooth flow of air over a surface is called?
1 answer:
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Answer:
8.24μm
Explanation:
The theory of brittle fracture was used to solve this problem.
And if you follow through with the attachment made a the subject of the formula
Such that,
a = 2x(69x10⁹)x0.3/pi(40x10⁶)²
= 4.14x10¹⁰/5.024x10¹⁵
= 8.24x10^-06
= 8.24μm
This is the the maximum length of the surface flaw
Complete Question
Consider a single crystal of some hypothetical metal that has the BCC crystal structure and is oriented such that a tensile stress is applied along a [121] direction. If slip occurs on a (101) plane and in a [111] direction, compute the stress at which the crystal yields if its critical resolved shear stress is 2.9 MPa.
Answer:
The stress is
Explanation:
From the question we are told that
The critical yield resolved shear stress is
First we obtain the angle between the slip direction [121] and [111]
Where are the directional indices
Next is to obtain the angle between the direction [121] and [101]
Substituting 1 for , 2 for
, 1 for
, 1 for
, 0 for
, and 1 for
The stress is mathematically represented as