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Remarks on Residual Stress Measurement by Hole-Drilling and Electronic Speckle Pattern Interferometry [PDF]

open access: yesThe Scientific World Journal, 2014
Hole drilling is the most widespread method for measuring residual stress. It is based on the principle that drilling a hole in the material causes a local stress relaxation; the initial residual stress can be calculated by measuring strain in ...
Claudia Barile   +3 more
doaj   +2 more sources

Residual stress measurement on the butt-welded area by electronic speckle pattern interferometry

open access: diamondNuclear Engineering and Technology, 2015
Background: Residual stress always exists on any kind of welded area. This residual stress can cause the welded material to crack or fracture. For many years, the hole-drilling method has been widely used for measuring residual stress.
Kyeongsuk Kim   +3 more
doaj   +2 more sources

Artificial Neural Networks Application in Modal Analysis of Tires [PDF]

open access: yesMeasurement Science Review, 2013
The paper deals with the application of artificial neural networks (ANN) to tires’ own frequency (OF) prediction depending on a tire construction. Experimental data of OF were obtained by electronic speckle pattern interferometry (ESPI).
Koštial P.   +5 more
doaj   +2 more sources

Dynamic deformation analysis of aluminum alloy 5083 using electronic speckle pattern interferometry

open access: goldJournal of Materials Research and Technology
In this study, we propose a phase-analysis algorithm that operates on a single contour image obtained via electronic speckle pattern interferometry (ESPI) to investigate non-uniform deformation in Al–Mg alloys.
Yuto Takanezawa   +2 more
doaj   +2 more sources

The modeling and condition analysis of nondestructive testing based on ESPI for internal defects of materials. [PDF]

open access: yesPLoS ONE
Electronic speckle pattern interferometry (ESPI) is a non-contact, full field, real-time measurement technology, which judges the position and size of the internal defects of the object through the external deformation caused by the internal defects ...
Wen Wang   +4 more
doaj   +2 more sources

The behavior of standing waves near the end of an open pipe with low mean flow [PDF]

open access: yesJASA Express Letters, 2023
The acoustic standing wave near the end of an open pipe is investigated using spectrally analyzed high-speed transmission electronic speckle pattern interferometry.
Thomas R. Moore   +2 more
doaj   +1 more source

Tracking transients in steelpan strikes using surveillance technology [PDF]

open access: yesJASA Express Letters, 2022
This paper presents advancements in tracking features in high-speed videos of Caribbean steelpans illuminated by electronic speckle pattern interferometry, made possible by incorporating robust computer vision libraries for object detection and image ...
Scott H. Hawley   +2 more
doaj   +1 more source

The stress and strain distribution in X10CrMoVNb9-1 power engineering steel after long time degradation studied by the ESPI system [PDF]

open access: yesBulletin of the Polish Academy of Sciences: Technical Sciences, 2022
Maintenance of assets and equipment in power plants is essential for their safety and is required to help the plant stay active. In this paper, the specimens manufactured from a pipe of X10CrMoVNb9-1 (P91) power engineering steel in the as-received state
Mateusz Kopec
doaj   +1 more source

Considerations on the choice of experimental parameters in residual stress measurements by hole-drilling and ESPI [PDF]

open access: yesFracture and Structural Integrity, 2014
Residual stresses occur in many manufactured structures and components. Great number of investigations have been carried out to study this phenomenon.
C. Barile   +3 more
doaj   +2 more sources

Determination of fracture mechanics parameters on a base of local displacement measurements [PDF]

open access: yesFracture and Structural Integrity, 2013
New experimental technique for a determination of the stress intensity factor (SIF) and T-stress values is developed and verified. The approach assumes combining the crack compliance method and optical interferometric measurements of local deformation ...
Yu. G. Matvienko   +2 more
doaj   +2 more sources

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