Mechanical Properties of Materials

Static properties we will explore include:

-strength -plasticity -elasticity -ductility -hardness -malleability

Which of the following is not a mechanical property of materials? A) Hardness B) Resistivity C) Strength D) Ductility

B) Resistivity

___________________ implies the lack of ductility and toughness.

Brittleness

Which do you think is the least elastic material? Hint: imagine bending each of these materials. A) Rubber B) Nylon C) Glass D) Plastic

C) Glass

_______________ is the slow plastic deformation that occurs when a load is applied for long periods.

Creep

Which do you think is the most malleable substance? A) Copper B) Ice C) Glass D) Rubber

D) Rubber

_____________ is the ability to be drawn out longitudinally to a reduced cross-section.

Ductility

_______________ is the material's ability to return to its original shape after being deformed.

Elasticity

__________________ is when a material can fail at a lower than normal stress if the load is applied many times.

Fatigue

_____________ is the resistance to wear or indentation of a material.

Hardness

_____________ is the ability of the material to be permanently stretched in all directions without fracture.

Malleability

_____________ is the readiness to deform to a stretched state when a load is applied.

Plasticity

______________________ is the ability of a material to absorb energy on deformation and return a proportion of it when the deformation is removed.

Resilience

___________ is the ability to resist a force without breaking.

Strength

___________________ is the ability to withstand a sudden force.

Toughness

A dynamic property is defined as one that changes with time. Is this true or false? Answer True or False.

True

The ___________________properties we have explored are different examples of static mechanical properties. Another group of mechanical properties is ___________________. These are properties that change with time.

mechanical dynamic