Definitions for "Impact strength"
A test for determining the punishment a cable can withstand without physical or electrical breakdown by impacting with a given weight, dropped a given distance, in a controlled environment.
The relative toughness of various plastics materials, that is, their ability to withstand fracture, is measured by various scientific tests that give specific numerical ratings for purposes of comparison. The " falling dart" test is just what its name suggests; the test result is expressed by a number indicating the foot-pounds of energy required to break a standard sample of the material.
Energy required to fracture a specimen subjected to shock loading, as in an impact test. Alternate terms are impact energy, impact value, impact resistance and energy absorption. It is an indication of the toughness of the material.