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Image-based stress field reconstruction in complex media

Research output: Chapter in Book/Report/Conference proceedingChapter in a book

Standard

Image-based stress field reconstruction in complex media. / Seghir, R.; Pierron, F.; Fletcher, L.

Residual Stress, Thermomechanics and Infrared Imaging, Hybrid Techniques and Inverse Problems - Proceedings of the 2018 Annual Conference on Experimental and Applied Mechanics. ed. / Janice M. Barton; Simon Quinn; Sven Bossuyt; Antonio Baldi; Xavier Balandraud. Vol. 7 Springer, 2019. p. 101-104.

Research output: Chapter in Book/Report/Conference proceedingChapter in a book

Harvard

Seghir, R, Pierron, F & Fletcher, L 2019, Image-based stress field reconstruction in complex media. in JM Barton, S Quinn, S Bossuyt, A Baldi & X Balandraud (eds), Residual Stress, Thermomechanics and Infrared Imaging, Hybrid Techniques and Inverse Problems - Proceedings of the 2018 Annual Conference on Experimental and Applied Mechanics. vol. 7, Springer, pp. 101-104.

APA

Seghir, R., Pierron, F., & Fletcher, L. (2019). Image-based stress field reconstruction in complex media. In J. M. Barton, S. Quinn, S. Bossuyt, A. Baldi, & X. Balandraud (Eds.), Residual Stress, Thermomechanics and Infrared Imaging, Hybrid Techniques and Inverse Problems - Proceedings of the 2018 Annual Conference on Experimental and Applied Mechanics (Vol. 7, pp. 101-104). Springer.

Vancouver

Seghir R, Pierron F, Fletcher L. Image-based stress field reconstruction in complex media. In Barton JM, Quinn S, Bossuyt S, Baldi A, Balandraud X, editors, Residual Stress, Thermomechanics and Infrared Imaging, Hybrid Techniques and Inverse Problems - Proceedings of the 2018 Annual Conference on Experimental and Applied Mechanics. Vol. 7. Springer. 2019. p. 101-104

Author

Seghir, R. ; Pierron, F. ; Fletcher, L. / Image-based stress field reconstruction in complex media. Residual Stress, Thermomechanics and Infrared Imaging, Hybrid Techniques and Inverse Problems - Proceedings of the 2018 Annual Conference on Experimental and Applied Mechanics. editor / Janice M. Barton ; Simon Quinn ; Sven Bossuyt ; Antonio Baldi ; Xavier Balandraud. Vol. 7 Springer, 2019. pp. 101-104

Bibtex

@inbook{7436c7eae3294c7f8df6c7174b5e3997,
title = "Image-based stress field reconstruction in complex media",
abstract = "In many instances in life, materials are subject to deformation at high rates, for example: impact, crash, metal forming or pulsed welding. In this context, the transient and inhomogeneous nature of such loading as well as the strong multi-physic couplings induced by quasi-adiabatic conditions make: the experimental capture of the mechanical response very challenging. Additionally, assumptions regarding the constitutive relation of the deforming material are generally required. To overcome both issues, we demonstrate that experimental full-field measurements of acceleration fields can be directly used to invert the local equilibrium equation and reconstruct fields of the stress tensor with no assumption on the constitutive relation and its spatial and temporal variations. We also demonstrate that both experimental stress and strain fields can be recombined to eventually identify the local tangent stiffness tensor of the material. This study constitutes a first step in the field of ?direct model identification?, as opposed to standard parametric model identification.",
keywords = "Dynamic, Mechanical behaviour, Model identification, Stress, Ultra-high speed imaging",
author = "R. Seghir and F. Pierron and L Fletcher",
year = "2019",
month = "10",
day = "1",
language = "English",
volume = "7",
pages = "101--104",
editor = "Barton, {Janice M.} and Simon Quinn and Sven Bossuyt and Antonio Baldi and Xavier Balandraud",
booktitle = "Residual Stress, Thermomechanics and Infrared Imaging, Hybrid Techniques and Inverse Problems - Proceedings of the 2018 Annual Conference on Experimental and Applied Mechanics",
publisher = "Springer",

}

RIS - suitable for import to EndNote

TY - CHAP

T1 - Image-based stress field reconstruction in complex media

AU - Seghir, R.

AU - Pierron, F.

AU - Fletcher, L

PY - 2019/10/1

Y1 - 2019/10/1

N2 - In many instances in life, materials are subject to deformation at high rates, for example: impact, crash, metal forming or pulsed welding. In this context, the transient and inhomogeneous nature of such loading as well as the strong multi-physic couplings induced by quasi-adiabatic conditions make: the experimental capture of the mechanical response very challenging. Additionally, assumptions regarding the constitutive relation of the deforming material are generally required. To overcome both issues, we demonstrate that experimental full-field measurements of acceleration fields can be directly used to invert the local equilibrium equation and reconstruct fields of the stress tensor with no assumption on the constitutive relation and its spatial and temporal variations. We also demonstrate that both experimental stress and strain fields can be recombined to eventually identify the local tangent stiffness tensor of the material. This study constitutes a first step in the field of ?direct model identification?, as opposed to standard parametric model identification.

AB - In many instances in life, materials are subject to deformation at high rates, for example: impact, crash, metal forming or pulsed welding. In this context, the transient and inhomogeneous nature of such loading as well as the strong multi-physic couplings induced by quasi-adiabatic conditions make: the experimental capture of the mechanical response very challenging. Additionally, assumptions regarding the constitutive relation of the deforming material are generally required. To overcome both issues, we demonstrate that experimental full-field measurements of acceleration fields can be directly used to invert the local equilibrium equation and reconstruct fields of the stress tensor with no assumption on the constitutive relation and its spatial and temporal variations. We also demonstrate that both experimental stress and strain fields can be recombined to eventually identify the local tangent stiffness tensor of the material. This study constitutes a first step in the field of ?direct model identification?, as opposed to standard parametric model identification.

KW - Dynamic, Mechanical behaviour, Model identification, Stress, Ultra-high speed imaging

M3 - Chapter in a book

VL - 7

SP - 101

EP - 104

BT - Residual Stress, Thermomechanics and Infrared Imaging, Hybrid Techniques and Inverse Problems - Proceedings of the 2018 Annual Conference on Experimental and Applied Mechanics

A2 - Barton, Janice M.

A2 - Quinn, Simon

A2 - Bossuyt, Sven

A2 - Baldi, Antonio

A2 - Balandraud, Xavier

PB - Springer

ER -