Studying the Influence of the Reclaimed Asphalt Pavement (RAP) on Local Deformation Properties of Asphalt Mixtures

Teguedi, Mohamed; Toussaint, Evelyne; Grédiac, Michel; Moreira, S.; Liandrat, Sébastien

doi:10.1007/978-3-319-42028-8_19

Cited by 2 publications

(2 citation statements)

References 6 publications

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“…Compressive tests carried out on such specimens permitted to analyze this heterogeneous nature thanks to the grid method in . The same technique was used in to compare two different asphalt mixes and in to study the mechanical response of reclaimed asphalt pavements. Figure a shows the front face of an asphalt specimen before marking the surface with a grid (full details in ) as well as a typical ε yy strain maps measured during a compression test along the vertical direction.…”

Section: Examplesmentioning

confidence: 99%

The Grid Method for In‐plane Displacement and Strain Measurement: A Review and Analysis

Grédiac

Sur

Blaysat

2016

Strain

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139

162

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The grid method is a technique suitable for the measurement of in-plane displacement and strain components on specimens undergoing a small deformation. It relies on a regular marking of the surfaces under investigation. Various techniques are proposed in the literature to retrieve these sought quantities from images of regular markings, but recent advances show that techniques developed initially to process fringe patterns lead to the best results. The grid method features a good compromise between measurement resolution and spatial resolution, thus making it an efficient tool to characterise strain gradients. Another advantage of this technique is the ability to establish closed-form expressions between its main metrological characteristics, thus enabling to predict them within certain limits. In this context, the objective of this paper is to give the state of the art in the grid method, the information being currently spread out in the literature. We propose first to recall various techniques that were used in the past to process grid images, to focus progressively on the one that is the most used in recent examples: the windowed Fourier transform. From a practical point of view, surfaces under investigation must be marked with grids, so the techniques available to mark specimens with grids are presented. Then we gather the information available in the recent literature to synthesise the connection between three important characteristics of full-field measurement techniques: the spatial resolution, the measurement resolution and the measurement bias. Some practical information is then offered to help the readers who discover this technique to start using it. In particular, programmes used here to process the grid images are offered to the readers on a dedicated website. We finally present some recent examples available in the literature to highlight the effectiveness of the grid method for in-plane displacement and strain measurement in real situations.

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Section: Examplesmentioning

confidence: 99%

The Grid Method for In‐plane Displacement and Strain Measurement: A Review and Analysis

Grédiac

Sur

Blaysat

2016

Strain

Self Cite

139

162

View full text Add to dashboard Cite

show abstract

“…In recent years, these methods have become major tools to inspect and characterize the mechanical response of such materials. The main full-field measurement methods that are used by the pavement community are the digital image correlation (DIC) [3][4][5] and more recently the grid method (GM) [6,7]. This last technique was used here because it exhibits a good compromise between spatial resolution and measurement resolution [8], which is crucial here, the material under investigation being highly heterogeneous.…”

Section: Extended Abstractmentioning

confidence: 99%

Studying with a Full-Field Measurement Technique the Local Response of Asphalt Specimens Subjected to Freeze-Thaw Cycles

Teguedi

Blaysat

Toussaint

et al. 2017

Advancement of Optical Methods in Experimental Mechanics, Volume 3

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Studying the Influence of the Reclaimed Asphalt Pavement (RAP) on Local Deformation Properties of Asphalt Mixtures

Cited by 2 publications

References 6 publications

The Grid Method for In‐plane Displacement and Strain Measurement: A Review and Analysis

The Grid Method for In‐plane Displacement and Strain Measurement: A Review and Analysis

Studying with a Full-Field Measurement Technique the Local Response of Asphalt Specimens Subjected to Freeze-Thaw Cycles

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