stress raiser

stress raiser

[′stres ‚rā·zər] (metallurgy) A notch, hole, or other discontinuity in contour or structure which causes localized stress concentration.

stress raiser

stress raiserA stress raiser on a propeller. A nick of this size means that the propeller will need to be either discarded or sent back to the manufacturer.A sharp nick on a propeller. It is so called because the stresses can be concentrated on the point of the nick, possibly causing the structural failure or the loss of a propeller tip, extreme vibration, and loss of control.