Fatigue assessment of laser stake-welded T-joints

Frank, Darko; Remes, Heikki; Romanoff, Jani

doi:10.1016/j.ijfatigue.2010.07.002

Cited by 33 publications

(59 citation statements)

References 18 publications

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“…Regardless of the loading condition, one of the notch tips is more stressed and therefore critical from the fatigue point of view because this notch determines the fatigue strength of the joint [6]. The utilisation of local approaches requires accurate stress and strain fields around the critical notch tip and thus the response of the joint needs to be obtained by accounting precise notch depths [6,[11][12][13].…”

Section: Introductionmentioning

confidence: 99%

“…zero notch opening angles, as in the case of laser stake-welded T-joints. A systematic comparison of the above-mentioned stress and energy-based concepts showed that they can be used for the fatigue strength assessment of thick T-joints (t > 5 mm) [11]. Later, the J-integral was used for thin joints [6] and also for panels under different loading conditions [12,13].…”

Section: Introductionmentioning

confidence: 99%

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Fatigue strength assessment of laser stake-welded T-joints using local approaches

Frank

2015

International Journal of Fatigue

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Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Fatigue strength assessment of laser stake-welded T-joints using local approaches

Frank

2015

International Journal of Fatigue

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“…The buckling strength was severely decreased. Such case could occur for plates with decreased weld thickness due to corrosion; see Jelovica et al [15] and Aromaa et al [16], and due to fatigue; see Frank [17].…”

Section: Discussionmentioning

confidence: 99%

Influence of weld stiffness on buckling strength of laser-welded web-core sandwich plates

Jelovica¹,

Romanoff²,

Ehlers³

et al. 2012

Journal of Constructional Steel Research

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This is an author-generated copy of the publication: Jelovica, J., Romanoff, J., Ehlers, S. and Varsta P. Influence of weld stiffness on buckling strength of laser-welded web-core sandwich plates. Journal of Constructional Steel Research 77 (2012) p. 12-18.http://www.sciencedirect.com/science/article/pii/S0143974X12001137The content of the present copy corresponds exactly to the published version. AbstractThis paper investigates the influence of weld rotation stiffness on the global bifurcation buckling strength of laser-welded web-core sandwich plates. The study is carried out using two methods, the first is the equivalent single-layer theory approach solved analytically for simply supported plates and numerically for clamped plates. First-order shear deformation theory is used. The second method is the three-dimensional model of a sandwich plate solved with finite element method. Both approaches consider the weld through its rotation stiffness. The weld rotation stiffness affects the transverse shear stiffness. Plates are loaded in the web plate direction. Four different cross-sections are considered. Weld stiffness is taken from experimental results presented in the literature. The results show a maximum of 24% decrease in buckling strength. The strength was affected more in plates with high reduction of transverse shear stiffness and high bending stiffness. Furthermore, clamped plates were influenced more than simply supported. The intersection between buckling modes shifted towards higher aspect ratios, in the maximum case by 24%. The results show the importance of considering the deforming weld in buckling analysis.

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“…In Equation 3 e 3 depends on the Poisson's ratio and on the notch opening angle 2α and K 3 is the mode III NSIF (Frank et al, 2011;Remes et al, 2012)…”

Section: Theory/calculationsmentioning

confidence: 99%

“…Some recent examples of the use of the J-integral for the evaluation of the service life of the fatigue of the welded connections and prediction of static failures in sharp V notches and rounded U-nicks can be found in the (Frank et al, 2011;Remes et al, 2012;Frank et al, 2013;Livieri, 2008;Livieri and Tovo, 2009). Although this approach concerns only the Propagate phase of a fracture available, it is used to predict the values of the absolute value of resistance to fatigue or the service life of the welded connections of unconventional photos.…”

Section: Introductionmentioning

confidence: 99%

A Review of the Fatigue Strength of Load Carrying Shear Welded Joints

Berto¹,

Gagani²,

Petrescu³

et al. 2017

American Journal of Engineering and Applied Sciences

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In the study it is shown an overview of the latest results of two types of joints of the load carrying welded shear. Tests of fatigue have been carried out on the two solutions specific design features proposed and with the aim of improving the resistance of the joints under cycling loading. By hiring the 3D models, was determined Strain Energy Density (SED), in a volume of control which surrounds the lowest point of interest. All of the experimental results have been presented in short. The synthesis shows that all data are within the range of the scattering of the proposed previously in the specialized literature for steel construction welded.

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Fatigue assessment of laser stake-welded T-joints

Cited by 33 publications

References 18 publications

Fatigue strength assessment of laser stake-welded T-joints using local approaches

Fatigue strength assessment of laser stake-welded T-joints using local approaches

Influence of weld stiffness on buckling strength of laser-welded web-core sandwich plates

A Review of the Fatigue Strength of Load Carrying Shear Welded Joints

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