Proof test

A proof test is a form of stress test to demonstrate the fitness of a load-bearing or impact-experiencing structure. An individual proof test may apply only to the unit tested, or to its design in general for mass-produced items. Such a structure is often subjected to loads above those expected in actual use, demonstrating safety and design margin. Proof testing is nominally a nondestructive test,[1] particularly if both design margins and test levels are well-chosen. However, unit failures are by definition considered to have been destroyed for their originally-intended use and load levels.

Proof tests may be performed before a new design or unit is allowed to enter service, or perform additional uses,[2] or to verify that an existing unit is still functional as intended.[3]

  1. ^ "ToolingU definition". Toolingu.com. Retrieved 2014-05-28.
  2. ^ "Proof-test unit for Viking Landers". Nasm.si.edu. Retrieved 2014-05-28.
  3. ^ Test intervals for in-service equipment Archived September 16, 2012, at the Wayback Machine