Stress-Strain Curves

What is the definition of strength?

• the ability of a material to withstand force without breaking or bending

• the ability of a material to absorb water

• the ability of a material to break with the slightest touch

• the ability of a material to withstand heat without breaking

Stiffness is when a material can....

• Hold its shape without bending

• Hold its shape without melting

• Hold its shape without erodding

• Hold its shape without breaking

This test applies pulling force to a material and measures the specimen's response to the stress.

• Tensile test

• Harness test

• Impact test

The temporary change in length, volume, or shape produced. that is after a force is placed on the object the object will retain its original shape.

• Elastic deformation

• Yield point

• Plastic deformation

• Ultimate tensile strength point

• Necking

the stress beyond which a material becomes plastic

• Elastic deformation

• Yield point

• Plastic deformation

• Ultimate tensile strength point

• Necking

is the permanent distortion that occurs when a material is subjected to force beyond the yield point.

• Elastic deformation

• Yield point

• Plastic deformation

• Ultimate tensile strength point

• Necking

When a material is having hardness and rigidity but little tensile strength thus breaking readily with a comparatively smooth fracture.

• ductile

• tough

• Brittle

• hardness

Compare the Modulus of Elasticity of a hair tie and a piece of string.

• MoE Hair Tie > MoE String

• MoE Hair Tie < MoE String

• MoE Hair Tie = MoE String

Which point on the stress-strain curve shown gives the ultimate tensile strength?

• A

• B

• C

• D

• E

Tags

CCSS.HSA.REI.D.10

Which point on the stress-strain curve shown gives the elastic limit?

• A

• B

• C

• D

• E

Tags

CCSS.HSF.IF.B.4