Strength of Materials

Using the stress-strain curve above, what is the yield strength for aluminum?

• ≈ 130 Mpa

• ≈ 250 Mpa

• ≈ 230 Mpa

• ≈ 200 Mpa

Using the stress-strain curve above, what is the tensile strength for steel?

• ≈ 350 Mpa

• ≈ 250 Mpa

• ≈ 230 Mpa

• ≈ 200 Mpa

What does point A, B, D, E represent, respectively?

• A: Yield Strength, B: Modulus of Elasticity, D: Tensile Strength, E: Strength at Failure

• A: Modulus of Elasticity, B: Yield Strength, D: Tensile Strength, E: Strength at Failure

• A: Modulus of Elasticity, B: Yield Strength , D: Tensile Strength, E: Strength at Failure

• A: Yield Strength, B: Modulus of Elasticity, D: Strength at Failure, E: Tensile Strength

Which of the following are items that do not affect the tensile strength of a member?

• cross-sectional area

• length

• material

• shape

• density

Using the stress-strain curves provided, which of the two materials experiences more plastic deformation?

• Material #1

• Material #2

Using the stress-strain curves provided above, which of the two materials shown is more brittle?

• Material #1

• Material #2

These materials can be easily shaped, stretched, and are sometimes elastic.

• metals

• polymers

• ceramics/glass

• composites

Material can conduct heat and electricity, can be hammered into a shape, or drawn into a wire.

• metals

• polymers

• ceramics

• glass

A force is defined as a

• push

• pull

• stretch

• push & pull

A material’s ability to resist denting or scratching is called:

• toughness

• hardness

• tension

• torsion