[Alneyan]

In his hypotethical situation, it was a deflecting shield that was mentioned; it could have been a regular shield as in the vanilla game as well (which would have no specific property).

Hits on a Crystalline Armour do virtually nothing actually, so long as the damage of the weaponry is lower than the lowest between "Total shield regeneration from damage" or "Damage resistance of a Crystalline component-1". I am not too sure of what happens when it is the first value that is too low, as the damage resistance is always my limiting factor with Crystalline vessels.

In this case, you will hit the ship for 140 points of damage, but these will be partial damage, and will go to depleting the shields with your next hit. So if you kept hitting the ship with APBs 140, the shields would always be brought down with each hit, and there would always be 140 partial damage, effectively resulting in a situation where virtually nothing happens. Firing a Nullspace weapon would however deal these 140 partial damage plus the weapon's damage, resulting in a nasty scratch to the ship.

There seems to be an odd thing with partial damage: it is not erased in the combat report, as a ship can be reported to have taken a lot of damage, even when it is only partial damage (one Colony ship ramming another will likely result in partial damage to the Colony module for the rammed ship, and yet it will be displayed as a 60% damaged ship in combat report). So if you need one ship to be taken down, or effectively slowed down (a Colony ship would be one such case), you should not trust combat report in these fields.