with this I really don't know. all i know is that In the research i've done i've found out that one thery is that there was no damage to the side of titanic. it totally missed the iceburg ABOVE water, but grounded with the underwater portion of the iceburg therefore knocking I guess holes in the bottom of the ship. when the order was given hard a starbord, etc. the two expansion joints that were designed flexed against eich other therefore weakening the expansion joints. When the ship began to sink and the bow began to rise, the stress was too much and it broke in half. After it broke in half, the only part still attached was part of her keel. with the stern already filled with water and making its decent to the ocean floor it starts to pull the horizontal bow to a total upright position untill it finally breaks at the keel. the bow then sits there and bobs for a little bit, till it finally starts to fill with water and begin to sink. since the stern was already filled with water there was no air to cause much damage. the only damage that I can think of is the damage caused by going down at I think it was like I'll say 20 knots or so and hitting the ocean floor imbedding itself in the mud. The bow, on the other hand, was still filled with water and as it started to decend to the bottom the water tried to escape damaging the bow severly. untill it finally came to rest on the ocean floor. On some of this i don't know how accurate the info I found was, but I think that most of it is right. the ship split, in my opinion at the surface, but not all the way. then once the already submerged stern starts its decent to the ocean floor it pulls the bow with it. it has been said that if the keel wouldn't have still been attached the bow might have staied afloat and saved many lives, but we will never know because the keel was still attached and pulled the bow down with ti.