TY - JOUR
T1 - Chord profile influence on the fatigue failure of a t-butt weld joint
AU - Arzola de la Peña, Nelson
AU - Araque de los Ríos, Oscar Javier
PY - 2014/1/1
Y1 - 2014/1/1
N2 - 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.
AB - 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.
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U2 - 10.4067/S0718-33052014000200006
DO - 10.4067/S0718-33052014000200006
M3 - Article
SP - 196
EP - 204
JO - Ingeniare
JF - Ingeniare
SN - 0718-3291
ER -