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Gnesinka [82]
3 years ago
15

Calculate the maximum internal crack length allowable for a 7075-T651 aluminum alloy component that is loaded to a stress one-ha

lf of its yield strength. Assume a yield strength 495 MPa, a plane strain fracture toughness of 24 MPa and that Y = 1.39.
Engineering
1 answer:
aleksley [76]3 years ago
7 0

Answer: 0.0033 m = 3.3 mm (0.13 in.)

Explanation:

since this problem requires us to calculate the maximum internal crack length allowable for the 7075-T651

aluminum alloy is given that it is loaded to a stress level equal to one-half of its yield strength.

For this alloy, KIc 24 MPa \sqrt{m}(22 ksi \sqrt{in}); also, σ= σ_y/2 = (495 MPa)/2 = 248 MPa (36,000 psi).

Now solving for 2ac gives us;

2a_c=2/π (K_IC/γσ)^2=2/π [(24MPa √m)/(1.35)(248MPa) ]^2=0.0033m=3.3mm (0.13 in.)

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Answer:

E=52000Hp.h

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Explanation:

To solve this problem you must multiply the engine power by the time factor expressed in h / year, to find this value you must perform the conventional unit conversion procedure.

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Answer:

Here are 2 sense i cant find 4

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3 0
2 years ago
1. Examine the following circuit. Find RT, I3, R1, R2, R3, V1, V2 and V3. Show all of your work clearly below.
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Explanation:

Ohm's law is used here. V = IR, and variations. The voltage across all elements is the same in this parallel circuit. (V1 =V2 =V3)

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sveta [45]

Answer:

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TC=m\cdot c

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2 years ago
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