Abstract
Fatigue life predictions based on fracture mechanics calculations are required to satisfy an increasing level of safety demanded by industry. These predictions are mainly used to schedule NDT inspections and with inspection data make structural integrity assessments. The periodic inspection-assessment process can lead to the implementation of a fatigue crack repair by crack removal. Fracture mechanics analysis is used again to determine whether or not a repair will be effective. For the case of tubular joints, in offshore structures, once repairs have been shown to be ineffective it is usually required to install a clamp to maintain the continuity of joint members if the structure is still required for production. In this paper a fracture mechanics analysis of crack repaired joints based on Y factors is presented. The analysis is used to predict fatigue life after crack removal and is validated against T-butts experimental data. The analysis is also extrapolated for the prediction of fatigue life of crack repaired tubular joints.
| Original language | English |
|---|---|
| Pages (from-to) | 182-189 |
| Number of pages | 8 |
| Journal | Journal of Offshore Mechanics and Arctic Engineering |
| Volume | 127 |
| Issue number | 2 |
| DOIs | |
| Publication status | Published - 1 May 2005 |
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Keywords
- maintenance
- fracture mechanics
- fatigue life
- stress
- fracture (materials)
- inspection-assessment
Cite this
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Fracture mechanics analysis of fatigue crack repaired joints. / Rodríguez-Sánchez, J. Efraín; Dover, William D.; Brennan, Feargal P.; Castellanos, Alejandro Rodríguez.
In: Journal of Offshore Mechanics and Arctic Engineering, Vol. 127, No. 2, 01.05.2005, p. 182-189.Research output: Contribution to journal › Article
TY - JOUR
T1 - Fracture mechanics analysis of fatigue crack repaired joints
AU - Rodríguez-Sánchez, J. Efraín
AU - Dover, William D.
AU - Brennan, Feargal P.
AU - Castellanos, Alejandro Rodríguez
PY - 2005/5/1
Y1 - 2005/5/1
N2 - Fatigue life predictions based on fracture mechanics calculations are required to satisfy an increasing level of safety demanded by industry. These predictions are mainly used to schedule NDT inspections and with inspection data make structural integrity assessments. The periodic inspection-assessment process can lead to the implementation of a fatigue crack repair by crack removal. Fracture mechanics analysis is used again to determine whether or not a repair will be effective. For the case of tubular joints, in offshore structures, once repairs have been shown to be ineffective it is usually required to install a clamp to maintain the continuity of joint members if the structure is still required for production. In this paper a fracture mechanics analysis of crack repaired joints based on Y factors is presented. The analysis is used to predict fatigue life after crack removal and is validated against T-butts experimental data. The analysis is also extrapolated for the prediction of fatigue life of crack repaired tubular joints.
AB - Fatigue life predictions based on fracture mechanics calculations are required to satisfy an increasing level of safety demanded by industry. These predictions are mainly used to schedule NDT inspections and with inspection data make structural integrity assessments. The periodic inspection-assessment process can lead to the implementation of a fatigue crack repair by crack removal. Fracture mechanics analysis is used again to determine whether or not a repair will be effective. For the case of tubular joints, in offshore structures, once repairs have been shown to be ineffective it is usually required to install a clamp to maintain the continuity of joint members if the structure is still required for production. In this paper a fracture mechanics analysis of crack repaired joints based on Y factors is presented. The analysis is used to predict fatigue life after crack removal and is validated against T-butts experimental data. The analysis is also extrapolated for the prediction of fatigue life of crack repaired tubular joints.
KW - maintenance
KW - fracture mechanics
KW - fatigue life
KW - stress
KW - fracture (materials)
KW - inspection-assessment
UR - http://www.scopus.com/inward/record.url?scp=22744434400&partnerID=8YFLogxK
U2 - 10.1115/1.1894408
DO - 10.1115/1.1894408
M3 - Article
VL - 127
SP - 182
EP - 189
JO - Journal of Offshore Mechanics and Arctic Engineering
JF - Journal of Offshore Mechanics and Arctic Engineering
SN - 0892-7219
IS - 2
ER -