The formula to calculate the specific strength (SS) is:
\[ SS = \frac{S}{D} \]
Where:
Specific strength, also known as strength-to-weight ratio, is a measure of the strength of a material divided by its density. It is an important property in material science and engineering, as it helps to compare materials based on how much strength they provide per unit of weight. This is particularly useful in applications where weight is a critical factor, such as in aerospace and automotive industries.
For example, if the strength of the material (S) is 5000 Newtons and the density of the material (D) is 2500 kg/m³, the specific strength (SS) can be calculated as follows:
\[ SS = \frac{5000}{2500} = 2 \text{ N·m³/kg} \]
So, the specific strength for a material with a strength of 5000 Newtons and a density of 2500 kg/m³ is 2 N·m³/kg.