flash in the pan vs rupture

flash in the pan

noun
  • A transient occurrence with no long-term effect. 

  • A career notable for early success not followed by significant accomplishment. 

rupture

noun
  • A failure mode in which a tough ductile material pulls apart rather than cracking. 

  • A social breach or break, between individuals or groups. 

  • A burst, split, or break. 

  • A break or tear in soft tissue, such as a muscle. 

verb
  • To burst, break through, or split, as under pressure. 

  • To dehisce irregularly. 

How often have the words flash in the pan and rupture occurred in a corpus of books? (source: Google Ngram Viewer )