An assessment of stresses in thin walled welded tubes through hole drilling and sectioning methods

Venkitakrishnan, P. V.; Philip, Jeby; Krishnamurthy, R.

doi:10.1016/j.jmatprotec.2006.03.149

Cited by 14 publications

(7 citation statements)

References 2 publications

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“…Techniques that involve a removal of a material are called destructive ones. Venkitakrishnan et al (2007) measured the residual stresses present in an aluminum tube through hole drilling and sectioning methods. Techniques that, on the contrary, allow for a measurement without removing a material are called non-destructive ones.…”

Section: Introductionmentioning

confidence: 99%

Numerical prediction and neutron diffraction measurement of the residual stresses for a modified 9Cr–1Mo steel weld

Kim

Lee

2009

Journal of Materials Processing Technology

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Section: Introductionmentioning

confidence: 99%

Numerical prediction and neutron diffraction measurement of the residual stresses for a modified 9Cr–1Mo steel weld

Kim

Lee

2009

Journal of Materials Processing Technology

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“…For common hole-drilling, without any compensating extra grid, the problem reformulated according to equation (9) seems to require many terms. In reality, the symmetry properties reduce the number of free parameters of the matrix A and its derivatives, thus making the approach more accessible.…”

Section: Symmetry Propertiesmentioning

confidence: 99%

“…According to equations (7) and (9), the calibration coefficients can be interpreted as the relaxed strains induced by unitary residual stresses. The strains measured by the grids were numerically simulated from the FE analysis displacements by considering the angular q dependence.…”

Section: Finite Element Modellingmentioning

confidence: 99%

“…1 There are several experimental techniques for measuring residual stresses. 2 These include mechanical methods (destructive or semi-destructive) based on cuttings or local material removals to relieve the embedded residual stresses, such as the contour method, 3 the ring core method [4][5][6] and other specific approaches adapted to the geometry of the components investigated, [7][8][9][10][11] or also combining the hole-drilling method with the indentation. 12 After the material has been removed, a back calculation is required to obtain the residual stress distribution that has been relaxed.…”

Section: Introductionmentioning

confidence: 99%

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First-order correction to counter the effect of eccentricity on the hole-drilling integral method with strain-gage rosettes

Barsanti

Beghini

Bertini

et al. 2016

The Journal of Strain Analysis for Engineering Design

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The offset between the hole and the centre of the strain-gage rosette is unavoidable, although usually small, in the hole-drilling technique for residual stress evaluation. In this article, we revised the integral method described in the ASTM E837 standard and we recalculated the calibration coefficients. The integral method was then extended by taking into account the two eccentricity components, and a more general procedure was proposed including the first-order correction. A numerical validation analysis was used to consolidate the procedure and evaluate the residual error after implementing the correction. The values of this error resulted limited to a few percentage points, even for eccentricities larger than the usual experimental values. The narrow eccentricity limit claimed by the standard, to keep the maximum error lower than 10%, can now be considered extended by approximately a factor of 10, after implementing the proposed correcting procedure, proving that the effect of the eccentricity is mainly linear within a relatively large range

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“…The same conclusion as for the finite element model was reached in a similar study on lap joints by Kong and Kovacevic. 26 Venkitakrishnan et al 27 carried out an assessment of the hole drilling method for the determination of residual stresses in welded tubes. The validity of this experimental method is shown, but no numerical study was used to extend the investigation to different set-ups.…”

Section: Literature Reviewmentioning

confidence: 99%

Experimental investigation and finite element analysis of welding induced residual stresses

Mollicone¹,

Gray²,

Camilleri³

2012

The Journal of Strain Analysis for Engineering Design

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Welding is one of the most important metal joining techniques due to its advantages in relation to speed and versatility. One of the unwanted effects of gas metal arc welding is residual stress, that arises due to the inherent temperature loadings and can lead to structural integrity or assembly problems. Experimental investigation of these effects is highly desirable but often costly, especially in large-scale construction such as shipbuilding. It is therefore of interest to exploit the potential of computational analysis techniques, such as finite element analysis, for the assessment of these effects. The use of finite element analysis in this context is however not straightforward, due to the complex nature of the problem. The work presented here deals with an experimentally validated modelling strategy applied to two weld joint configurations: butt and fillet welded plates. Simulation techniques are presented which are aimed at predicting residual stresses. These are validated against measurements carried out using the hole drilling method for residual stress determination. Results show a good qualitative and quantitative match in simulated and experimentally measured values, which back up the modelling techniques adopted

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An assessment of stresses in thin walled welded tubes through hole drilling and sectioning methods

Cited by 14 publications

References 2 publications

Numerical prediction and neutron diffraction measurement of the residual stresses for a modified 9Cr–1Mo steel weld

Numerical prediction and neutron diffraction measurement of the residual stresses for a modified 9Cr–1Mo steel weld

First-order correction to counter the effect of eccentricity on the hole-drilling integral method with strain-gage rosettes

Experimental investigation and finite element analysis of welding induced residual stresses

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