Comparison of Residual Stress Measurements Using X-Ray Diffraction and PRISM - Electronic Speckle Pattern Interferometry and Hole-Drilling

Rickert, Theo J.; Fix, Robert M.; Suominen, Lasse

doi:10.4271/2007-01-0804

Cited by 7 publications

(6 citation statements)

References 2 publications

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“…Such non-compliance of the motion of additional masses may be the result of the errors of experimental prototype manufacturing, inaccurate properties of the piezoelectric material, asymmetry of vibrations and the influence of the environment during the experiment. In order to determine the deformations of the examined homogeneous piezo plate with additional masses in the direction, the holographic vibration and deformations measurement system PRISM 100 (Hytec Inc., USA) has been used [12]. Fig.…”

Section: Resultsmentioning

confidence: 99%

Excitation of 2D resonant oscillations in piezoelectric plate with additional masses

Bansevičius¹,

Navickaitė²,

Jurenas³

et al. 2017

J. vibroeng.

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This article presents results of investigation of piezoelectric transducer which consists of rectangle homogeneous piezoceramic plate with two additional masses glued on the top surface of the transducer. Because of additional masses and a certain sectioning of piezoelectric electrodes, the vibration forms of the plate and resonant frequencies are changed, therefore, the plate generates 3D longitudinal and bending vibrations. Numerical and experimental investigation showed that the masses glued at the surface of piezoelectric plate obtain elliptical trajectories of motion when the first mode of longitudinal vibrations of the plate is excited. Such form of vibrations of the masses enables using them for various piezoelectric drive mechanisms as contact elements and to transform high-frequency vibrations into the directional or rotational movement of the rotor or slider. In order to examine the deformations and dynamic characteristics of the homogenous piezoelectric plate with two additional masses, the numerical modelling of such piezo transducer and the experimental study have been carried out.

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Section: Resultsmentioning

confidence: 99%

Excitation of 2D resonant oscillations in piezoelectric plate with additional masses

Bansevičius¹,

Navickaitė²,

Jurenas³

et al. 2017

J. vibroeng.

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“…The stress relief brought about by hole-drilling is measured in the form of surface displacements by digital photography of speckle patterns before and after drilling. This method is much quicker and easier to use than strain-gage methods [8]. Due to the relatively small inner diameter of the cylinders, the drill bit size of 0.79 mm diameter was used for all measurements.…”

Section: Cylinder Cross Sectionmentioning

confidence: 99%

“…Its main disadvantage is the complex application of strain gages for every measurement in close proximity of the drilled hole. The PRISM instrument measures stress relaxation optically after incremental hole-drilling by electronic speckle pattern interferometry (ESPI) and does not require strain gages [8].…”

Section: Introductionmentioning

confidence: 99%

Modeling and Measurement of Residual Stresses along the Process Chain of Autofrettaged Components by Using FEA and Hole-Drilling Method with ESPI

Brünnet

Bähre

Rickert³

et al. 2013

MSF

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The incremental hole-drilling method is a well-known mechanical measurement procedure for the analysis of residual stresses. The newly developed PRISM® technology by Stresstech Group measures stress relaxation optically using electronic speckle pattern interferometry (ESPI). In case of autofrettaged components, the large amount of compressive residual stresses and the radius of the pressurized bores can be challenging for the measurement system. This research discusses the applicability of the measurement principle for autofrettaged cylinders made of steel AISI 4140. The residual stresses are measured after AF and after subsequent boring and reaming. The experimental residual stress depth profiles are compared to numerically acquired results from a finite element analysis (FEA) with the software code ABAQUS. Sample preparation will be considered as the parts have to be sectioned in half in order to access the measurement position. Following this, the influence of the boring and reaming operation on the final residual stress distribution as well as the accuracy of the presented measurement setup will be discussed. Finally, the usability of the FEA method in early design stages is discussed in order to predict the final residual stress distribution after AF and a following post-machining operation.

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“…Because of this, a novel measurement method based on the Electronic Speckle Pattern Interferometry (ESPI) combined with the hole drilling technique has been recently used [18][19][20]. ESPI is an optical measurement method that produces displacement data from the object surface before the object has been deformed (reference object) and after deformation has occurred.…”

Section: Introductionmentioning

confidence: 99%

“…1 Electronic speckle pattern Interferometry (ESPI) system setup [20] measure applied bending stresses. Ricket and Fix [19] analyzed the residual stress distribution in a tool steel sample under bending load. In these results, even when differences in magnitude attributed to the microstructural change of the samples appeared, good qualitative relation was observed in the tension and compression sections of the samples.…”

Section: Introductionmentioning

confidence: 99%

Experimental and numerical analysis of the residual stress distribution in a three-point bending test of a TRIP sheet by using ESPI

Díaz-Mendoza

Capilla-González

Martínez-Ramírez

et al. 2020

J Braz. Soc. Mech. Sci. Eng.

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In sheet metal forming, residual stresses are related to springback and material failure after the deformation process or during service due to load history. Thus, being able to either calculate or measure such stresses is of great importance. This paper aims to evaluate the use of the Electronic Speckle Pattern Interferometry (ESPI) technique to measure residual stresses on TRIP steel. Residual stresses are measured after springback on specimens used in three-point bending tests; where three bending angles are considered. Experiments are compared with Finite Element calculations in terms of punch force, springback angle and residual stresses. Work-hardening and anisotropy parameters, used in simulations, are experimentally determined by the uniaxial tensile test. Results indicate that advanced hardening models are necessary to increase the accuracy of springback predictions. Nevertheless, residual stress calculations show a good correlation with experimental values. Also, it was proved that ESPI is a powerful technique to measure the residual stress on complex surfaces, as the ones typically encountered in sheet forming processes. Future work includes residual stress predictions for different forming processes.

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Comparison of Residual Stress Measurements Using X-Ray Diffraction and PRISM - Electronic Speckle Pattern Interferometry and Hole-Drilling

Cited by 7 publications

References 2 publications

Excitation of 2D resonant oscillations in piezoelectric plate with additional masses

Excitation of 2D resonant oscillations in piezoelectric plate with additional masses

Modeling and Measurement of Residual Stresses along the Process Chain of Autofrettaged Components by Using FEA and Hole-Drilling Method with ESPI

Experimental and numerical analysis of the residual stress distribution in a three-point bending test of a TRIP sheet by using ESPI

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