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madam [21]
9 months ago
9

Hole filling fasteners (for example, MS20470 rivets) should not be used in composite structures primarily because of the

Engineering
1 answer:
DanielleElmas [232]9 months ago
3 0

Option c is correct. Hole filling fasteners (for example, MS20470 rivets) should not be used in composite structures primarily because of the  increased possibility of fretting corrosion in the fastener.

Fretting corrosion is the outcome of simultaneous physicochemical and mechanical surface interaction in a tribological contact, and it is the irreversible change of a material. A specific load and cyclic displacement with a limited amplitude must be applied to the contact between the surfaces of two materials for fretting corrosion to take place.

Small gaps develop between the surfaces in contact as a result of cyclic tension. Either material is lost or cracks start to appear as a result. Fretting corrosion's side effect of contact corrosion almost always causes a blockage because the lack of functional movement makes it impossible to remove debris. When debris is still trapped, there is blockage because the oxide takes up more space than the original material.

To know more about functional click here:

brainly.com/question/9171028

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2 years ago
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Answer:

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The wall thickness of a pipe is the difference between the diameter of outer wall and the diameter of inner wall divided by 2. It is given by:

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Given that:

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Answer:

See explaination

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cin>>input;

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