Fatigue Assessment of Root Cracking of Fillet Welds Subject to Throat Bending using the Structural Stress Approach

Fricke, Wolfgang; Kahl, Adrian; Paetzold, Hans

doi:10.1007/bf03266538

Cited by 20 publications

(35 citation statements)

References 2 publications

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“…The highest stress is seen at the root side in the plane of symmetry of the joint, which is therefore the anticipated failure location and it is consistent with the experimental observation. Cover plate on a welded T‐joint …”

Section: Joint Geometries and Stress Analysis Using The Peak Stress Mmentioning

confidence: 99%

“…Fricke et al . tested a cover plate fillet‐welded onto a main plate and subjected to a pulsating ( R = 0) out‐of‐plane load applied by means of a perpendicular web plate . Therefore, the cover plate is subjected to bending.…”

Section: Joint Geometries and Stress Analysis Using The Peak Stress Mmentioning

confidence: 99%

“…Distribution of the equivalent peak stress along the weld toe and the weld root lines of the cover plate T‐joint (joint n ° 10); the crack initiation point is estimated at the root of the fillet weld at the cover plate where the maximum stress is calculated.…”

Section: Joint Geometries and Stress Analysis Using The Peak Stress Mmentioning

confidence: 99%

“…Figure 3 contains additional experimental data as compared to those considered in Refs [22,23] consisting of a series of 8.4-mm-thick load-carrying cruciform fillet-welded joints made of a ship-building steel (grade D, σ y = 355 MPa) and tested under pulsating tension load (R = 0). 38 The scatter band reported in Fig. 3 has been calibrated in a previous paper using about 180 experimental results relevant only to weld toe failures and 2α ≅ 135°.…”

Section: Figmentioning

confidence: 99%

“…could be analysed in order to calculate the peak stresses of Eqs or . Figure contains additional experimental data as compared to those considered in Refs consisting of a series of 8.4‐mm‐thick load‐carrying cruciform fillet‐welded joints made of a ship‐building steel (grade D, σ y = 355 MPa) and tested under pulsating tension load ( R = 0) . The scatter band reported in Fig.…”

Section: Introductionmentioning

confidence: 99%

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The peak stress method combined with 3D finite element models for fatigue assessment of toe and root cracking in steel welded joints subjected to axial or bending loading

Meneghetti

Guzzella

Atzori

2014

Fatigue Fract Eng Mat Struct

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In fatigue design of welded joints, the local approach based on the notch stress intensity\ud factor (NSIF) assumes that the weld toe profile is a sharp V-notch having a tip radius\ud equal to zero, while the root side is a pre-crack in the structure. The ratio between the\ud mode I NSIF and the linear elastic opening peak stress evaluated at the point of singularity\ud (i.e. the V-notch tip) by the finite element (FE) method depends only on the type and\ud size of the elements adopted in the discretization. The ratio between the mode II SIF and\ud the linear elastic sliding peak stress evaluated at the crack tip has the same property. This\ud useful property of the opening and sliding peak stresses evaluated by the FE method gives\ud rise to the so-called peak stress method (PSM). In the present paper, it is adopted as an\ud engineering, FE oriented application of the NSIF approach to fatigue design of welded\ud joints. Originally applied to 2D FE models, the peak stress method is combined here with\ud 3D numerical models to assess the fatigue strength of steel welded joints having complex\ud geometry and characterised by toe as well as root cracking. A properly defined design\ud stress, that is, the equivalent peak stress, is shown to correlate with good approximation\ud all analysed experimental data

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Section: Joint Geometries and Stress Analysis Using The Peak Stress Mmentioning

confidence: 99%

Section: Joint Geometries and Stress Analysis Using The Peak Stress Mmentioning

confidence: 99%

Section: Joint Geometries and Stress Analysis Using The Peak Stress Mmentioning

confidence: 99%