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Image Correlation for Shape, Motion and Deformation Measurements: Basic Concepts,Theory and Applications
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In this paper, a comprehensive overview of image correlation for shape, motion and deformation measurements is provided. But, the authors do not discuss the effect of out-of-plane motion on 2D measurements.Abstract:
Image Correlation for Shape, Motion and Deformation Measurements provides a comprehensive overview of data extraction through image analysis. Readers will find and in-depth look into various single- and multi-camera models (2D-DIC and 3D-DIC), two- and three-dimensional computer vision, and volumetric digital image correlation (VDIC). Fundamentals of accurate image matching are described, along with presentations of both new methods for quantitative error estimates in correlation-based motion measurements, and the effect of out-of-plane motion on 2D measurements. Thorough appendices offer descriptions of continuum mechanics formulations, methods for local surface strain estimation and non-linear optimization, as well as terminology in statistics and probability. With equal treatment of computer vision fundamentals and techniques for practical applications, this volume is both a reference for academic and industry-based researchers and engineers, as well as a valuable companion text for appropriate vision-based educational offerings.read more
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Journal ArticleDOI
Micro-scale experimental investigation of the swelling anisotropy of the Callovo-Oxfordian argillaceous rock
Linlin Wang,Michel Bornert,S. Chanchole,Diansen Yang,Eva Héripré,Arnaud Tanguy,D. Caldemaison +6 more
TL;DR: In this paper, an experimental study of the swelling anisotropy of the Callovo-Oxfordian argillaceous rock under hydration is presented, which combines environmental scanning electron microscopy and digital image correlation techniques, has been carried out at the micrometric scale of the composite microstructure of the rock.
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Identification of the local Elasto-Plastic Behavior of FSW Welds Using the Virtual Fields Method
TL;DR: In this article, an inverse procedure based on the Virtual Fields Method is proposed to identify the evolution of the local elasto-plastic properties of an Al 5456 FSW weld.
Journal ArticleDOI
Study on Fracture Behaviour of a Polymer‐Bonded Explosive Simulant Subjected to Uniaxial Compression Using Digital Image Correlation Method
TL;DR: In this paper, the deformation and fracture process of a polymer-bonded explosive (PBX) simulant were observed using a charge-coupled-device camera.
Journal ArticleDOI
Experimental investigation of prepreg slit tape wrinkling during automated fiber placement process using StereoDIC
Sreehari Rajan,Michael A. Sutton,Roudy Wehbe,Brian Tatting,Zafer Gürdal,Addis Kidane,Ramy Harik +6 more
TL;DR: In this paper, an experimental investigation is presented quantifying out-of-plane wrinkle formation and in-plane deformations occurring in prepreg slit tape specimens during automated fiber placement (AFP).
Journal ArticleDOI
Unveiling 3D Deformations in Polymer Composites by Coupled Micro X-Ray Computed Tomography and Volumetric Digital Image Correlation
TL;DR: In this paper, a new method combining micro-X-ray computed tomography (μXCT) and volumetric digital image correlation (V-DIC) in conjunction with in-situ mechanical testing was used to probe 3D deformation behavior in a friction stir blind rivet (FSBR) joint of carbon fiber reinforced polymer (CFRP) composite.