3D Meso-scale Image-based Fracture Modelling of Concrete Using Cohesive elements

W Ren; James Yang; Rajneesh Sharma

3D Meso-scale Image-based Fracture Modelling of Concrete Using Cohesive elements

W Ren, James Yang, Rajneesh Sharma

Research output: Chapter in Book/Report/Conference proceeding › Conference proceeding › peer-review

Abstract

This paper extended the 2D meso-scale image-based models to 3D by using a small volume proportion of images obtained from an X-ray computed tomography test. The real microstructure of concrete specimen was characterized as three phases: aggregate, cement and voids (which is empty areas). Zero-thickness cohesive
interface elements were embedded in cement phase to represent the potential cracks (no cracks allowed to propagate through aggregate particles). The average stress-strain curve of the 3D mesh under uniaxial tension was compared with a 2D simulation result. The crack propagation process in 3D was illustrated together with the final crack surfaces.

Original language	English
Title of host publication	Proceedings of the 22nd UK Conference of the Association for Computational Mechanics in Engineering
Editors	Akbar Javadi, Mohammed S. Hussain
Publisher	University of Exeter
Pages	140-143
Number of pages	4
ISBN (Electronic)	978-0-902746-30-5
Publication status	Published - 2014
Externally published	Yes
Event	22nd UK National Conference of the Association for Computational Mechanics in Engineering - Exeter, United Kingdom Duration: 2 Apr 2014 → 4 Apr 2014

Conference

Conference	22nd UK National Conference of the Association for Computational Mechanics in Engineering
Country/Territory	United Kingdom
City	Exeter
Period	2/04/14 → 4/04/14

Keywords

Concrete
X-ray computed tomography
Image based modelling
Cohesive interface element
Mesoscale model

Cite this

3D Meso-scale Image-based Fracture Modelling of Concrete Using Cohesive elements. / Ren, W; Yang, James; Sharma, Rajneesh.
Proceedings of the 22nd UK Conference of the Association for Computational Mechanics in Engineering . ed. / Akbar Javadi; Mohammed S. Hussain. University of Exeter, 2014. p. 140-143.

Research output: Chapter in Book/Report/Conference proceeding › Conference proceeding › peer-review

Ren, W, Yang, J & Sharma, R 2014, 3D Meso-scale Image-based Fracture Modelling of Concrete Using Cohesive elements. in A Javadi & MS Hussain (eds), Proceedings of the 22nd UK Conference of the Association for Computational Mechanics in Engineering . University of Exeter, pp. 140-143, 22nd UK National Conference of the Association for Computational Mechanics in Engineering , Exeter, United Kingdom, 2/04/14.

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abstract = "This paper extended the 2D meso-scale image-based models to 3D by using a small volume proportion of images obtained from an X-ray computed tomography test. The real microstructure of concrete specimen was characterized as three phases: aggregate, cement and voids (which is empty areas). Zero-thickness cohesiveinterface elements were embedded in cement phase to represent the potential cracks (no cracks allowed to propagate through aggregate particles). The average stress-strain curve of the 3D mesh under uniaxial tension was compared with a 2D simulation result. The crack propagation process in 3D was illustrated together with the final crack surfaces. ",

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editor = "Javadi, {Akbar } and Hussain, {Mohammed S. }",

booktitle = "Proceedings of the 22nd UK Conference of the Association for Computational Mechanics in Engineering",

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note = "22nd UK National Conference of the Association for Computational Mechanics in Engineering ; Conference date: 02-04-2014 Through 04-04-2014",

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AU - Yang, James

AU - Sharma, Rajneesh

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N2 - This paper extended the 2D meso-scale image-based models to 3D by using a small volume proportion of images obtained from an X-ray computed tomography test. The real microstructure of concrete specimen was characterized as three phases: aggregate, cement and voids (which is empty areas). Zero-thickness cohesiveinterface elements were embedded in cement phase to represent the potential cracks (no cracks allowed to propagate through aggregate particles). The average stress-strain curve of the 3D mesh under uniaxial tension was compared with a 2D simulation result. The crack propagation process in 3D was illustrated together with the final crack surfaces.

AB - This paper extended the 2D meso-scale image-based models to 3D by using a small volume proportion of images obtained from an X-ray computed tomography test. The real microstructure of concrete specimen was characterized as three phases: aggregate, cement and voids (which is empty areas). Zero-thickness cohesiveinterface elements were embedded in cement phase to represent the potential cracks (no cracks allowed to propagate through aggregate particles). The average stress-strain curve of the 3D mesh under uniaxial tension was compared with a 2D simulation result. The crack propagation process in 3D was illustrated together with the final crack surfaces.

KW - Concrete

KW - X-ray computed tomography

KW - Image based modelling

KW - Cohesive interface element

KW - Mesoscale model

M3 - Conference proceeding

SP - 140

EP - 143

BT - Proceedings of the 22nd UK Conference of the Association for Computational Mechanics in Engineering

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A2 - Hussain, Mohammed S.

PB - University of Exeter

T2 - 22nd UK National Conference of the Association for Computational Mechanics in Engineering

Y2 - 2 April 2014 through 4 April 2014

ER -

3D Meso-scale Image-based Fracture Modelling of Concrete Using Cohesive elements

Abstract

Conference

Keywords

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Cite this