ISSN 2594-5327
59th Congresso anual — Vol. 59 , num. 1 (2004)
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Abstract
An experimental program was performed to investigate the fundamental fatigue mechanisms of aluminum drill pipes. Initially, the fatigue properties were determined through smallscale tests performed in an optic-mechanical fatigue apparatus. Additionally, full-scale fatigue tests were carried out with three aluminum drill pipe specimens under combined loading of cyclic bending and constant axial tension. Finally, a finite element model was developed to simulate the stress field along the aluminum drill pipe during the fatigue tests and to estimate the stress concentration factors inside the tool joints. By this way, it was possible to estimate the stress values in regions not monitored during the fatigue tests.
An experimental program was performed to investigate the fundamental fatigue mechanisms of aluminum drill pipes. Initially, the fatigue properties were determined through smallscale tests performed in an optic-mechanical fatigue apparatus. Additionally, full-scale fatigue tests were carried out with three aluminum drill pipe specimens under combined loading of cyclic bending and constant axial tension. Finally, a finite element model was developed to simulate the stress field along the aluminum drill pipe during the fatigue tests and to estimate the stress concentration factors inside the tool joints. By this way, it was possible to estimate the stress values in regions not monitored during the fatigue tests.
Keywords
aluminum drill pipe, fatigue, S-N curve, mechanical properties, finite element analysis
aluminum drill pipe, fatigue, S-N curve, mechanical properties, finite element analysis
How to cite
Plácido, João Carlos Ribeiro; Netto, Theodoro Antoun; Miscow, Guilherme Farias; Miranda, Paulo Emílio Valadão de; Pasqualino, Ilson Paranhos; Pinheiro, Bianca de Carvalho.
FATIGUE ANALYSIS OF ALUMINUM DRILL PIPES,
p. 2573-2580.
In: 59th Congresso anual,
São Paulo, Brasil,
2004.
ISSN: 2594-5327, DOI 10.5151/2594-5327-4029
