transitive & intransitive verb . To break or become broken into fragments.

verb. break or cause to break into pieces

"A nanosecond later a small charge would explode, thus releasing the tungsten rod within, which being heavier and harder, would fly into the crew compartment, shatter and fragmentize, quickly wounding, disabling, or simply slaughtering the human beings and any delicate electronic equipment inside."

break  come apart  fall apart  separate  split up  

atomise  atomize  bray  brecciate  comminute  

fragmentized  fragmentizing