Chord profile influence on the fatigue failure of a t-butt weld joint
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| Formato: | Artículo científico |
| Lenguaje: | en |
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Universidad de Tarapacá
2014
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| _version_ | 1876439267166650368 |
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| author | Nelson Arzola de la Peña |
| author_facet | Nelson Arzola de la Peña |
| contents | Chord profile influence on the fatigue failure of a t-butt weld joint Nelson Arzola de la Peña Oscar Javier Araque de los Ríos Ingeniería Welding fatigue butt weld chord profile failure prediction This paper shows a mathematical model assessment for fatigue crack propagation in a T-butt weld joint same thickness sheet. The assessment reached a closed-form solution for the dimensionless stress intensity factor expression, depending on crack size, for three types of weld chord profiles: straight, convex, and concave. It is established that crack growth rate for concave chord profile is lower than for the other two chord profiles. Finally, fatigue test in non-standard specimens were carried out to validate theoretical models. Fatigue life for all three weld chord profiles are within the experimental confidence interval [13280-21650] cycles for 95% probability. 2014 artículo científico 0718-3291 https://www.redalyc.org/articulo.oa?id=77231016006 en http://www.redalyc.org/revista.oa?id=772 Ingeniare. Revista Chilena de Ingeniería application/pdf Universidad de Tarapacá Ingeniare. Revista Chilena de Ingeniería (Chile) Num.2 Vol.22 |
| format | Artículo científico |
| id | redalyc_77231016006 |
| institution | Redalyc |
| language | en |
| publishDate | 2014 |
| publisher | Universidad de Tarapacá |
| spellingShingle | Chord profile influence on the fatigue failure of a t-butt weld joint Nelson Arzola de la Peña Ingeniería Welding fatigue butt weld chord profile failure prediction Chord profile influence on the fatigue failure of a t-butt weld joint Nelson Arzola de la Peña Oscar Javier Araque de los Ríos Ingeniería Welding fatigue butt weld chord profile failure prediction This paper shows a mathematical model assessment for fatigue crack propagation in a T-butt weld joint same thickness sheet. The assessment reached a closed-form solution for the dimensionless stress intensity factor expression, depending on crack size, for three types of weld chord profiles: straight, convex, and concave. It is established that crack growth rate for concave chord profile is lower than for the other two chord profiles. Finally, fatigue test in non-standard specimens were carried out to validate theoretical models. Fatigue life for all three weld chord profiles are within the experimental confidence interval [13280-21650] cycles for 95% probability. 2014 artículo científico 0718-3291 https://www.redalyc.org/articulo.oa?id=77231016006 en http://www.redalyc.org/revista.oa?id=772 Ingeniare. Revista Chilena de Ingeniería application/pdf Universidad de Tarapacá Ingeniare. Revista Chilena de Ingeniería (Chile) Num.2 Vol.22 |
| title | Chord profile influence on the fatigue failure of a t-butt weld joint |
| topic | Ingeniería Welding fatigue butt weld chord profile failure prediction |
| url | https://www.redalyc.org/articulo.oa?id=77231016006 |