Definition(s)
Local Peak Stress
Highest stress in the region or component under consideration that causes no significant distortion and is principally objectionable as a possible initiation site for a fatigue crack.
- NOTE: 1 These stresses are highly localized and occur at geometric discontinuities.
- NOTE: 2 This is sometimes referred to as hot spot stress.
Source: API Specification 16Q, Design, Selection, Operation, and Maintenance of Marine Drilling Riser Systems, Second Edition, April 2017. Global Standards
Local Peak Stress
Highest stress in the region or component under consideration. The basic characteristic of a peak stress is that it causes no significant distortion and is principally objectionable as a possible initiation site for a fatigue crack. These stresses are highly localized and occur at geometric discontinuities. Sometimes referred to as hot spot stress.
Source: API RP 16Q, Recommended Practice for Design, Selection, Operation and Maintenance of Marine Drilling Riser Systems, First Edition, November 1993 (Reaffirmed August 2001). Global Standards
Local Peak Stress
Highest stress in the region or component under consideration.
NOTE: The basic characteristic of a peak stress is that it causes no significant distortion and is principally objectionable as a possible initiation site for a fatigue crack. These stresses are highly localized and occur at geometric discontinuities.
Source: ISO 13624-1:2009, Petroleum and natural gas industries – Drilling and production equipment – Part 1:Design and operation of marine drilling riser equipment. Global Standards