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WorksheetsStress/Strain Curves
Total questions: 14
Worksheet time: 7mins
Which of the following best describes the ability of a material to be stretched and return to its original shape?
elasticity
hardness
conductor
brittleness
In the given stress-strain curve, which of the following is represented by point A?
Fracture point
Ultimate tensile strength
Yield Strength
Modulus of Elasticity / Hooke's law Proportionality Constant
How is strain calculated?
Number of sleepless nights divided by number of cups of coffee
Divide load (F) by the original test sample cross-sectional area (A0).
Elongation (δ) under load divided by the original Length (L0)
Stress (σ) divided by strain (ε)
How is stress calculated?
Number of sleepless nights divided by number of cups of coffee
Divide load (F) by the original test sample cross-sectional area (A0).
Elongation (δ) under load divided by the original Length (L0)
Stress (σ) divided by strain (ε)
If a material has a cross-sectional area of 5 square meters and subjected to a normal force of 20 N, which of the following is the normal stress?
4 Pa
25 Pa
0.4 Pa
15 Pa
Using the stress-strain curve above, what is the ultimate tensile strength for steel?
≈ 350 MPa
≈ 250 MPa
≈ 230 MPa
≈ 200 MPa
Using the stress-strain curve above, what is the yield strength for aluminum?
≈ 130 MPa
≈ 250 MPa
≈ 230 MPa
≈ 200 MPa
When a material is subjected to a stress beyond its elastic limit, that material will exhibit plastic deformation.
True
False
When the amount of force applied to a material is increased, the stress is decreased.
True
False
When the cross-sectional area of a material is increased, the stress is decreased.
True
False
Using the stress-strain curves provided, which of the two materials experiences more plastic deformation?
Material #1
Material #2
In the given stress-strain curve, which of the following is represented by point E?
Fracture point
Ultimate tensile strength
Yield Strength
Modulus of Elasticity / Hooke's law Proportionality Constant
This refers to the ratio of tensile stress to tensile strain.
Bulk Modulus of elasticity
Shear Modulus of Rigidity
Young's Modulus of elasticity
Which section reversible ?
A
B
C
D
