Fatigue of web-flange weld of corrugated web girders: 2. Analytical evaluation of fatigue strength of corrugated web-flange weld

Anami, Kengo; Sause, Richard

doi:10.1016/j.ijfatigue.2004.08.007

Cited by 23 publications

(8 citation statements)

References 4 publications

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“…In Figure 7, the ESS value corresponding to the fatigue failure location of specimen 3 is 106.84 MPa. Considering the stress ratio R is 0.042, fatigue life at this point can be predicted with different survival probabilities using the master S-N curve provided by Dong [39], which is expressed as Equation 21: The ESS curve of the mid-span region is exaggeratedly shown and compared with the test results in [38]. Three specimens were found with fatigue cracks among the six tests, in which cracks occurred on the north side in the second bending radius section in specimens 3 and 4, and on the south side in the first bending radius section in specimen 5, as shown in Figure 7.…”

Section: Predicted Crack Initiation Locationmentioning

confidence: 99%

“…In Figure 7, the ESS value corresponding to the fatigue failure location of specimen 3 is 106.84 MPa. Considering the stress ratio R is 0.042, fatigue life at this point can be predicted with different survival probabilities using the master S-N curve provided by Dong [39], which is expressed as Equation 21: In Figure 7, the ESS value corresponding to the fatigue failure location of specimen 3 is 106.84 MPa. Considering the stress ratio R is 0.042, fatigue life at this point can be predicted with different survival probabilities using the master S-N curve provided by Dong [39], which is expressed as Equation (21):…”

Section: Predicted Crack Initiation Locationmentioning

confidence: 99%

“…Korashy [19] conducted comparative fatigue tests on corrugated web girders and conventional flat web girders, and the results suggested that corrugated web girders provide better fatigue performance. Anami [20,21] and Wang [22][23][24][25] carried out several fatigue tests on corrugated web girders and both thought that fatigue cracks were prone to initiate from the weld toe between the bottom flange and the corrugated web. They also proposed some practical fatigue life prediction methods.…”

Section: Introductionmentioning

confidence: 99%

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Analysis of the Fatigue Crack Evolution of Corrugated Web Girders

Wei

et al. 2019

Metals

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Based on linear elastic fracture mechanics (LEFM), the fatigue crack evolution process and behavior of corrugated web girders were studied. The global finite element analysis (FEA) model of corrugated web girders was first developed and the equivalent structural stress method was used to reveal the dangerous locations along the weld under the bending load. The weld toe between the tension flange and the web weld, which is near the intersection of the inclined fold and the parallel fold, was determined as the fatigue crack easy-initiating location. Then a small region containing the crack-prone site was extracted as the sub-model for a crack propagating simulation. A semi-circle initial crack with 0.1 mm radius was inserted at the crack easy-initiating location. The stress intensity factors (SIFs; K I , K II , and K III ) of some discrete points along the crack front were calculated by the M-integral method. Based on Nasgro law, the geometry of the new crack front with a given extension length was obtained. Finally, the complete evolution process of the crack propagation was simulated. Results showed that the dominant crack propagating mode is open type (Mode I) and K I is the most important propagating driving force. According to the crack front shape evolution, the whole propagating process was divided into 6 stages. An obvious kink of the crack was found in stage 1, which covered only a very short time. The stages 3, 4 and 5 accounted for the majority of life, among which the stage 3 accounted for as high as 81% of the total life. Therefore, the cycles of the weld toe crack propagating from 0.1 mm to the thickness of the flange can be defined as the prediction life of this kind of structures.

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Section: Predicted Crack Initiation Locationmentioning

confidence: 99%

“…In Figure 7, the ESS value corresponding to the fatigue failure location of specimen 3 is 106.84 MPa. Considering the stress ratio R is 0.042, fatigue life at this point can be predicted with different survival probabilities using the master S-N curve provided by Dong [39], which is expressed as Equation 21: In Figure 7, the ESS value corresponding to the fatigue failure location of specimen 3 is 106.84 MPa. Considering the stress ratio R is 0.042, fatigue life at this point can be predicted with different survival probabilities using the master S-N curve provided by Dong [39], which is expressed as Equation (21):…”

Section: Predicted Crack Initiation Locationmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Analysis of the Fatigue Crack Evolution of Corrugated Web Girders

Wei

et al. 2019

Metals

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“…In 1997, Japan's Waseda University's scholar Touxian [19] reported the corrugated steel web composite beam fatigue test. Touxian made a fatigue test on the prestressed composite plate girder and corrugated steel web combined box girder.…”

Section: Influence Of Web-to-wing Connection On Fatigue Properties Ofmentioning

confidence: 99%

Research on Fatigue Property of Composite Box Girder with Corrugated Steel Webs

Yinghuan¹,

Shucheng²,

Jiangfeng³

2017

2017 4th International Materials, Machinery and Civil Engineering Conference (MATMCE 2017)

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Corrugated steel web composite box girder is a new type of steel-concrete composite structures, and it replaces the traditional one with corrugated steel webs and has the characteristics of both concrete and steel webs. The thesis summarizes the research status and results of fatigue property of composite box girder with corrugated steel webs and finds a number of structural fatigue properties that have a significant impact on the factors. Through analysis, this paper presents the prospects of further research of fatigue property in composite box girder with corrugated steel webs and applications of fatigue characteristic analysis in the construction of composite box girder with corrugated steel webs in future. The results show that the fatigue life evaluation method of corrugated steel web composite beam based on fatigue reliability theory should be developed, and the anti-fatigue design of bridge suitable for our national actual situation should be explored, suggesting for bridge construction.

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“…The fatigue strength of the web-flange weld was also examined by Anami and Sause [82] by means of finite elements and crack propagation analysis. The authors concluded that the fatigue strength is affected negatively by the existence of the longitudinal folds of the corrugated web.…”

Section: -5 Fatiguementioning

confidence: 99%