Properties of Materials - Essay Example

Extract of sample
Properties of Materials

There are two rules of thumb that have been given in comparing the density of materials i.e. titanium is nearly half the density of steel and that of aluminum is about one third the density of steel. Any heavy and weak material is considered bad but for a strong and light material is considered good.
Stress and strain
Stress has been described as the amount of force applied to a certain material divided by the cross sectional area of the material to the direction of the force. Strain properties, on the other hand, indicate how much a material lengthens under stress.
Tensile and comprehensive strength
The strength of a material can be measured by putting a material sample in a powerful materials testing machine, which pulls the materials apart and then records the force required to do so, plus the deformation to the material. Compression strength is determined by subjecting the material under pressure until it breaks i.e. heat, impact, et cetera. Tensile and compressive indicators are then recorded. These are good measure of how much impact the building materials can withstand without breaking if subjected to certain pressures (James, 2011, 35).
Elastic and plastic deformation
As explained in the stress strain diagrams above, elasticity and plastic deformation occurs prior and after application of a certain amount of stress on a certain material. In figure 2 above, below point A, we find that steel goes back to its original state hence it is elastic. ...Show more


This is the mass per unit volume of a material or it can be defined also as the mass of a substance divided by its volume. Examples of density of materials are: 4-6 titanium weighs 0.610 pounds per cubic inch; 6061 aluminum weighs 0.098 pounds per cubic inch; 4130 steel weighs 0.283 pounds per cubic inch. …
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