On the estimation of error in measuring the residual stress by strain gauge rosette

Giri, A.; Pandey, Chandan; Mahapatra, Manas Mohan; Sharma, Kamal; Singh, Pawan Kumar

doi:10.1016/j.measurement.2014.12.047

Cited by 45 publications

(14 citation statements)

References 10 publications

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“…Recent developed calculation procedures of RS estimates for blind hole drilling include correction of the plasticity effects. 51–53 Generally, the relationship between the deformation field (either in displacement or strain), d ( Z ), and released RS, σ ( Z ), creates a so-called inverse problem, which can be encapsulated by the Volterra equation of the first kind 54…”

Section: Experimental Methodologymentioning

confidence: 99%

Novel implementations of relaxation methods for measuring residual stresses at the micron scale

Winiarski

Withers

2015

The Journal of Strain Analysis for Engineering Design

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The advent of dual-beam focused ion beam -field emission gun scanning electron microscope (FIB-SEM) imaging and milling systems in combination with digital image correlation (DIC) analysis has made it possible to make very fine excisions and to record the resulting displacements with nanometre precision. This has led to novel implementations of macroscale residual stress measurement methods to the microscale, for example, micro-slotting, micro-hole drilling and so on. This review article outlines the different methods for residual stress mapping at the micron scale highlighting their relative merits and limitations with the aim of guiding the user towards the most appropriate techniques for a given application. These open new possibilities for residual stress measurement not just at the continuum scale but even for mapping stresses within grains. In addition, recent advances in milling throughput promised by new dual-beam plasma focused ion beam systems promise to help bridge the gap between the conventional macroscale methods and their micron-scale counterparts.

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Section: Experimental Methodologymentioning

confidence: 99%

Novel implementations of relaxation methods for measuring residual stresses at the micron scale

Winiarski

Withers

2015

The Journal of Strain Analysis for Engineering Design

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“…In the case of residual stresses determination, deviation from the analyzed location up to 1 mm does not cause a significant measurement error in the investigated stress levels. In respect of the experimental procedure, it is required to keep the essential principles valid for the commonly used hole-drilling method, e.g., regular changing of milling tools whose failure may lead to negative influenced results [ 28 ].…”

Section: Development and Testing Of The Unique Hole-drilling Devicmentioning

confidence: 99%

Design of a Unique Device for Residual Stresses Quantification by the Drilling Method Combining the PhotoStress and Digital Image Correlation

et al. 2021

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This paper presents a uniquely designed device combining the hole-drilling technique with two optical systems based on the PhotoStress and digital image correlation (DIC) method, where the digital image correlation system moves with the cutting tool. The authors aimed to verify whether the accuracy of the drilled hole according to ASTM E837-13a standard and the positioning accuracy of the device were sufficient to achieve accurate results. The experimental testing was performed on a thin specimen made from strain sensitive coating PS-1D, which allowed comparison of the results obtained by both methods. Although application of the PhotoStress method allows analysis of the strains at the edge of the cut hole, it requires a lot of experimenter’s practical skills to assess the results correctly. On the other hand, the DIC method allows digital processing of the measured data. However, the problem is not only to determine the data at the edge of the hole, the results also significantly depend on the smoothing levels used. The quantitative comparison of the results obtained was performed using finite element analysis.

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“…In the last few decades, some studies have demonstrated that the yielding near the hole affects the measurement if the residual stresses are above 60% of the material yield strength. 5,[8][9][10][11][12][13][14] If the effect of plasticity is neglected and the influence coefficients evaluated in the linear-elastic hypothesis are used, residual stresses obtained by the IM are overestimated and leading to unacceptable results with values above the material yield strength.…”

Section: Introductionmentioning

confidence: 99%

Measuring residual stress in finite thickness plates using the hole-drilling method

Beghini

Bertini

Giri

et al. 2019

The Journal of Strain Analysis for Engineering Design

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Hole-drilling is one of the most popular methods for measuring residual stress in mechanical components. The ASTM E837 standard defines the hole-drilling method for plates that are either thicker or thinner than the size of the hole diameter and provides the related calibration coefficients for these two conditions. Measurements for components with a thickness in the range of a few millimetres, such as typical metal sheets, are not considered. In this article, the effects of thickness on the hole-drilling measurements are examined by a finite element parametric analysis. A method is proposed to analyse the measurements in plates with an intermediate thickness. The procedure is suitable for determining a general in-depth non-uniform residual stress distribution. Mathematical relationships are proposed which enable calibration coefficients to be obtained for any thickness. An experimental application confirms the validity of the procedure.

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On the estimation of error in measuring the residual stress by strain gauge rosette

Cited by 45 publications

References 10 publications

Novel implementations of relaxation methods for measuring residual stresses at the micron scale

Novel implementations of relaxation methods for measuring residual stresses at the micron scale

Design of a Unique Device for Residual Stresses Quantification by the Drilling Method Combining the PhotoStress and Digital Image Correlation

Measuring residual stress in finite thickness plates using the hole-drilling method

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