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M6 > Introduction > Flashcards

Introduction Flashcards

1
Q

What is Density

A

The measure of mass per unit volume. (Kg/m^3 )

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2
Q

What is Fatigue

A

When a metal is subjected to cycle loading, it will start to crack.

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3
Q

What is Elasticity

A

A body is said to be elastic if, after it had been deformed it will return to its original shape.

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4
Q

What is unit stress

A

The force per unit area. (N/m^2)

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5
Q

What is Tension

A

The stretched or lengthen of a material.

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6
Q

What is Compression

A

Compress or shorten of a material .

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7
Q

What is Shear

A

Two skins pulling a way.

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8
Q

What is Combined Stress

A

The combination of Tension and Shear stress.

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9
Q

What is Poisson’s Ratio

A

When a material is stretched, the material is usually thinned.

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10
Q

Hardness

A

The ability to resist penetration, wear or cutting action

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11
Q

Strength

A

The ability to withstand external forces.

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12
Q

Elasticity

A

The ability to return to its original shape after being deformed.

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13
Q

Plasticity

A

Allows a metal to be re-shaped.

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14
Q

Ductility

A

The ability to be drawn out into thinner sections without breaking.

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15
Q

Malleability

A

The ability to be beaten or rolled into shape.

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16
Q

Toughness

A

The property which allows a material to be deformed without breaking.

17
Q

Brittleness

A

The property of a material to break when deformed.

18
Q

Conductivity

A

The ability to conduct electricity or heat.

19
Q

Durability

A

The ability to withstand force over a period of time.

20
Q

Elastic limit

A

The max stress which a material may be subjected to and still return to its original shape.

21
Q

Yield strength

A

The mad stress that can be applied without permanent deformation.

22
Q

Tensile stregth

A

The max value of tensile stress that a material can withstand without breaking.

23
Q

Breaking point

A

The material will break at that given point.

24
Q

The Three main metals used in aircraft

A

Aluminium (+alloys)
Titanium (+alloys)
Magnesium (+alloys)

M6 (6 decks)

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