__Sectional Density Calculator:__

__Sectional Density Calculator:__

Enter the values of mass, M_{(g)} and cross-sectional area, A_{(cm2)} to determine the value of Sectional density, SD_{(g/cm2)}.

__Sectional Density Formula:__

__Sectional Density Formula:__

Sectional density (SD) is a measure of a projectile’s mass relative to its cross-sectional area, typically used in ballistics.

It provides insight into how well a projectile can penetrate a target, with a higher sectional density indicating better penetration capability.

A heavier section (more mass) will have a higher sectional density (SD) if its length remains constant.

A section with a larger cross-sectional area (A) will have a lower sectional density (SD) for the same mass (M).

It helps analyze weight distribution and optimize material usage in linear structures.

Sectional density, SD_{(g/cm2)} in grams per centimetre square is calculated by dividing the mass, M_{(g)} in grams of the projectile by its cross-sectional area, A_{(cm2)} in square centimetre.

Sectional density, SD_{(g/cm2)} = M_{(g)} / A_{(cm2)}

SD_{(g/cm2)} = sectional density in grams per square centimetre, g/cm^{2}.

M_{(g)} = mass in grams, g.

A_{(cm2)} = cross-sectional area in square centimetre, cm^{2}.

__Sectional Density Calculation:__

__Sectional Density Calculation:__

- A bullet has a mass of 10 grams and a cross-sectional area of 0.5 cm². Calculate the sectional density.

Given: M_{(g)} = 10g, A_{(cm2)} = 0.5cm^{2}.

Sectional density, SD_{(g/cm2)} = M_{(g)} / A_{(cm2)}

SD_{(g/cm2)} = 10 / 0.5

SD_{(g/cm2)} = 20g/cm^{2}.

- A projectile has a sectional density of 15 g/cm² and a mass of 30 grams. Calculate the cross-sectional area.

Given: M_{(g)} = 30g, SD_{(g/cm2)} = 15g/cm^{2}.

Sectional density, SD_{(g/cm2)} = M_{(g)} / A_{(cm2)}

A_{(cm2)} = M_{(g)} / SD_{(g/cm2)}

A_{(cm2)} = 30 / 15

A_{(cm2)} = 2cm^{2}.