Titanic was the largest passenger ship with the most luxurious internal facilities in the world at that time and had the reputation of "unsinkable ship". Unfortunately, however, the maiden voyage of Titanic was unlucky-it departed from Southampton, England, passed through Cherbourg-Oakville, France and Cobb, Ireland, and sailed for new york, USA.
191April 14 At about 23: 40, the Titanic collided with an iceberg, which caused the starboard bow to rupture to the middle of the ship and flooded five watertight compartments. At about 2: 20 am on April 15, the Titanic broke in two and sank to the bottom of the Atlantic Ocean at 3,700 meters. Of the 2,224 crew members and passengers, 15 17 were killed, of which only 333 bodies were recovered.
Extended data:
Cause of shipwreck
After the wreckage of the Titanic reappeared, the scientific investigation team collected metal samples for analysis and found the important details that led to the sinking of the Titanic: shipbuilding engineers only considered increasing the strength of steel, but did not think of increasing its toughness.
By comparing the metal fragments of the wreckage with the current shipbuilding steel, it is found that the current shipbuilding steel can bend into a V-shape when it is hit by the water temperature at the sinking site of the Titanic, while the steel on the wreckage will break quickly due to insufficient toughness.
The cold brittleness of steel is found, that is, at the temperature of -40℃~0℃, the mechanical behavior of steel changes from toughness to brittleness, leading to catastrophic brittle fracture. The steel made by modern technology will become brittle only at -70℃~-60℃.
But we can't blame the engineers at that time, because no one knew at that time that in order to increase the strength of steel, adding a lot of sulfide into steelmaking raw materials would greatly increase the brittleness of steel and lead to the tragedy of Titanic sinking.
Baidu Encyclopedia-Titanic