Monte Carlo Simulations of Mesoscale Fracture of Concrete with Random Aggregates and Pores: a Size Effect Study

Xiaofeng Wang; Zhenjun Yang; Andrey P Jivkov

doi:10.1016/j.conbuildmat.2015.02.002

Monte Carlo Simulations of Mesoscale Fracture of Concrete with Random Aggregates and Pores: a Size Effect Study

Xiaofeng Wang, Zhenjun Yang, Andrey P Jivkov

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Abstract

Size effect in concrete under tension is studied by Monte Carlo simulations of mesoscale finite element models containing random inclusions (aggregates and pores) with prescribed volume fractions, shapes and size distributions (called meso-structure controls). For a given size and a set of controls, a number of realisations with different spatial distribution of inclusions are simulated to produce statistical data for macroscopic load/stress-strain curves. The complex meso-crack initiation and propagation is captured by pre-inserted cohesive interface elements. The effects of specimen size and meso-structure controls on macroscopic strength and toughness are analysed, and empirical size-effect laws for their dependences are proposed by data regression. It is also shown that the mesoscale porosity affects both strength and toughness and should not be ignored in size effect studies of concrete.

Original language	English
Pages (from-to)	262-272
Number of pages	11
Journal	Construction and Building Materials
Volume	80
DOIs	https://doi.org/10.1016/j.conbuildmat.2015.02.002
Publication status	Published - 1 Apr 2015

Keywords

concrete
size effect
Monte Carlo simulations
cohesive crack models
meso-scale modelling

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10.1016/j.conbuildmat.2015.02.002

POST-PEER-REVIEW-PUBLISHERS.PDFFinal published version, 3.67 MBLicence: CC BY

1 Finished

QUBE : Quasi-Brittle fracture: a 3-D experimentally-validated approach
Mummery, P. (PI), Jivkov, A. (CoI) & Yang, Z. (CoI)
1/10/12 → 30/09/15
Project: Research

3 Article

On the effect of ITZ thickness in meso-scale models of concrete
Maleki, M., Rasoolan, I., Khajehdezfuly, A. & Jivkov, A., 20 Oct 2020, In: Construction and Building Materials. 258, 18 p., 119639.
Research output: Contribution to journal › Article › peer-review

Open Access
File
3D mesoscale modeling and fracture property study of rubberized self- compacting concrete based on uniaxial tension test
Li, X., Chen, X., Jivkov, A. & Zhang, J., 1 Dec 2019, In: Theoretical and Applied Fracture Mechanics. 104, p. 1-14 14 p., 102363.
Research output: Contribution to journal › Article › peer-review

Open Access
File
126 Downloads (Pure)
A mesoscale framework for analysis of corrosion induced damage of concrete
Seetharam, S., Laloy, E., Jivkov, A., Yu, L., Phung, Q., Pham, N., Bruno, K. & Druyts, F., 20 Aug 2019, In: Construction and Building Materials. 216, p. 347-361 31 p.
Research output: Contribution to journal › Article › peer-review

Open Access

Cite this

@article{c2a84f59a5e842a2af2c192e6ca90918,

title = "Monte Carlo Simulations of Mesoscale Fracture of Concrete with Random Aggregates and Pores: a Size Effect Study",

abstract = "Size effect in concrete under tension is studied by Monte Carlo simulations of mesoscale finite element models containing random inclusions (aggregates and pores) with prescribed volume fractions, shapes and size distributions (called meso-structure controls). For a given size and a set of controls, a number of realisations with different spatial distribution of inclusions are simulated to produce statistical data for macroscopic load/stress-strain curves. The complex meso-crack initiation and propagation is captured by pre-inserted cohesive interface elements. The effects of specimen size and meso-structure controls on macroscopic strength and toughness are analysed, and empirical size-effect laws for their dependences are proposed by data regression. It is also shown that the mesoscale porosity affects both strength and toughness and should not be ignored in size effect studies of concrete.",

keywords = "concrete, size effect, Monte Carlo simulations, cohesive crack models, meso-scale modelling",

author = "Xiaofeng Wang and Zhenjun Yang and Jivkov, {Andrey P}",

note = "XF Wang is funded by an EPS Faculty PhD Studentship from the University of Manchester. The research is supported by UK EPSRC (EP/J019763/1).",

year = "2015",

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doi = "10.1016/j.conbuildmat.2015.02.002",

language = "English",

volume = "80",

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journal = "Construction and Building Materials",

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TY - JOUR

T1 - Monte Carlo Simulations of Mesoscale Fracture of Concrete with Random Aggregates and Pores

T2 - a Size Effect Study

AU - Wang, Xiaofeng

AU - Yang, Zhenjun

AU - Jivkov, Andrey P

N1 - XF Wang is funded by an EPS Faculty PhD Studentship from the University of Manchester. The research is supported by UK EPSRC (EP/J019763/1).

PY - 2015/4/1

Y1 - 2015/4/1

N2 - Size effect in concrete under tension is studied by Monte Carlo simulations of mesoscale finite element models containing random inclusions (aggregates and pores) with prescribed volume fractions, shapes and size distributions (called meso-structure controls). For a given size and a set of controls, a number of realisations with different spatial distribution of inclusions are simulated to produce statistical data for macroscopic load/stress-strain curves. The complex meso-crack initiation and propagation is captured by pre-inserted cohesive interface elements. The effects of specimen size and meso-structure controls on macroscopic strength and toughness are analysed, and empirical size-effect laws for their dependences are proposed by data regression. It is also shown that the mesoscale porosity affects both strength and toughness and should not be ignored in size effect studies of concrete.

AB - Size effect in concrete under tension is studied by Monte Carlo simulations of mesoscale finite element models containing random inclusions (aggregates and pores) with prescribed volume fractions, shapes and size distributions (called meso-structure controls). For a given size and a set of controls, a number of realisations with different spatial distribution of inclusions are simulated to produce statistical data for macroscopic load/stress-strain curves. The complex meso-crack initiation and propagation is captured by pre-inserted cohesive interface elements. The effects of specimen size and meso-structure controls on macroscopic strength and toughness are analysed, and empirical size-effect laws for their dependences are proposed by data regression. It is also shown that the mesoscale porosity affects both strength and toughness and should not be ignored in size effect studies of concrete.

KW - concrete

KW - size effect

KW - Monte Carlo simulations

KW - cohesive crack models

KW - meso-scale modelling

U2 - 10.1016/j.conbuildmat.2015.02.002

DO - 10.1016/j.conbuildmat.2015.02.002

M3 - Article

SN - 0950-0618

VL - 80

SP - 262

EP - 272

JO - Construction and Building Materials

JF - Construction and Building Materials

ER -

Monte Carlo Simulations of Mesoscale Fracture of Concrete with Random Aggregates and Pores: a Size Effect Study

Abstract

Keywords

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Projects

QUBE : Quasi-Brittle fracture: a 3-D experimentally-validated approach

Research output

On the effect of ITZ thickness in meso-scale models of concrete

3D mesoscale modeling and fracture property study of rubberized self- compacting concrete based on uniaxial tension test

A mesoscale framework for analysis of corrosion induced damage of concrete

Cite this