DT p77-79

These flashcards cover key concepts and properties of materials discussed in the lecture notes, aiding in understanding and memorization for the exam.

What is compressive strength?

The ability to withstand being crushed or shortened by pushing forces (compression).

What does tensile strength refer to?

The ability to resist stretching or pulling forces (tension).

Define stiffness in materials.

The ability to resist forces that may bend the material.

What is hardness in the context of material properties?

The ability to resist abrasive wear such as scratching, surface indentation or cutting.

Explain durability as a material characteristic.

The ability to withstand wear, damage and weathering.

What does impact resistance mean?

The ability to absorb impact force without fracture.

What is plasticity in materials?

The ability to be permanently deformed (shaped) and retain the deformed shape.

Define elasticity in simple terms.

The ability to be deformed and then return to the original shape when the force is removed.

What does malleability refer to?

the quality of something that can be shaped into something else without breaking

Describe ductility.

refers to the ability of a material to sustain significant plastic deformation before fracture.

What is meant by the density of a material?

The mass of the material in a standard volume of space.

Explain the term strength-to-weight ratio.

Comparing the weight of the structure to the amount of weight it can support without failure.

What does flammability mean?

How a material burns once ignited and the degree of difficulty required to cause combustion.

Define biodegradable materials.

The ability of a material to break down naturally and decompose by the action of microorganisms.

What is electrical conductivity?

The ability of a material to allow the flow of electrical current through it.

Explain thermal conductivity.

The ability of a material to allow the transfer of heat energy through it.

What is corrosion/degradation resistance?

The ability of the material to withstand environmental attack and decay.