Air bursts are used primarily against infantry in the open or unarmored targets, as the resulting fragments cover a large area but will not penetrate armor, entrenchments, or fortifications.

It struck the right rear track, and fragments penetrated the engine compartment, severing fuel lines and setting the tank on fire.

She didn't know if any fragments had penetrated.

Although most of the shell was deflected overboard, fragments penetrated the roof, damaged the left gun's breech mechanism and jammed the training gear, knocking the turret out of action.

A fragment of his steel helmet penetrated into his brain.

Its fragments penetrated the fuselage, the Nos. 1 and 2 engine nacelles, and the right wing area.

In 1854, a strange comet enters over London, releasing little fragments in which one fragment penetrates into a street pump near Broad Street in Soho.

Most fragments are tiny and don't penetrate in a vital spot.

Scientists are not sure what would happen as the cometary fragments penetrated Jupiter's atmosphere.

Other scientists speculate that the fragments might penetrate much deeper into Jupiter, if they should create a shock front that acts as an insulating shield against some of the frictional heat.