TY - JOUR
T1 - Fatigue evaluation of rib-to-deck welded joint using averaged strain energy density method
AU - Luo, Pengjun
AU - Zhang, Qinghua
AU - Bao, Yi
AU - Zhou, Aixin
N1 - Publisher Copyright:
© 2018 Elsevier Ltd
PY - 2018/12/15
Y1 - 2018/12/15
N2 - This paper investigates the feasibility of an averaged strain energy density (SED) method for fatigue evaluation of rib-to-deck weld joint in orthotropic steel deck. The effect of weld geometry on fatigue resistance of rib-to-deck joint is evaluated. The analysis results of the presented average SED method are validated against fatigue testing data and compared with the results of the conventional hot-spot stress and effective notch stress methods. A W-N curve is derived using the averaged SED method and used for evaluating the fatigue strength of rib-to-deck welded joints. The averaged SED method is also used to investigate the effect of weld geometrical variables on the fatigue failure mode transition, and the fatigue strength of full-scale orthotropic steel deck specimens. The results indicate that the averaged SED method provides superior ability in evaluating fatigue resistance and failure mode of rib-to-deck welded joint.
AB - This paper investigates the feasibility of an averaged strain energy density (SED) method for fatigue evaluation of rib-to-deck weld joint in orthotropic steel deck. The effect of weld geometry on fatigue resistance of rib-to-deck joint is evaluated. The analysis results of the presented average SED method are validated against fatigue testing data and compared with the results of the conventional hot-spot stress and effective notch stress methods. A W-N curve is derived using the averaged SED method and used for evaluating the fatigue strength of rib-to-deck welded joints. The averaged SED method is also used to investigate the effect of weld geometrical variables on the fatigue failure mode transition, and the fatigue strength of full-scale orthotropic steel deck specimens. The results indicate that the averaged SED method provides superior ability in evaluating fatigue resistance and failure mode of rib-to-deck welded joint.
KW - Fatigue evaluation
KW - Fatigue failure mode
KW - Finite element analysis
KW - Orthotropic steel deck
KW - Rib-to-deck welded joint
KW - Strain energy density
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U2 - 10.1016/j.engstruct.2018.09.090
DO - 10.1016/j.engstruct.2018.09.090
M3 - Article
AN - SCOPUS:85054467376
SN - 0141-0296
VL - 177
SP - 682
EP - 694
JO - Engineering Structures
JF - Engineering Structures
ER -