Anisotropic damage model for concrete and other quasi-brittle materials

Jani Vilppo; Reijo Kouhia; Juha Hartikainen; Kari Kolari; Alexis Fedoroff; Kim Calonius

doi:10.1016/j.ijsolstr.2021.111048

Anisotropic damage model for concrete and other quasi-brittle materials

Jani Vilppo
, Reijo Kouhia^*
, Juha Hartikainen
, Kari Kolari
, Alexis Fedoroff
, Kim Calonius

^*Tämän työn vastaava kirjoittaja

Tutkimustuotos: Artikkeli › Tieteellinen › vertaisarvioitu

47 Sitaatiot (Scopus)

70 Lataukset (Pure)

Abstrakti

A thermodynamically consistent formulation to model anisotropic damage for quasi-brittle materials is proposed. The model is based on proper expressions for the specific Gibbs free energy and the complementary form of the dissipation potential. Damaging of the material is described by a symmetric positive definite second order damage tensor. Especially, the failure surface is formulated in such a way that it will mimic the behaviour of the well known Ottosen's four parameter failure surface. While testing the model against the experimental results found in literature, the results were in good agreement in uniaxial tensile and compressive loadings as well as in biaxial compression. Besides the correct failure stress states, the model predicts the correct failure modes of concrete: axial splitting along the direction of uniaxial compression and tensile damaging normal to the direction of tension.

Alkuperäiskieli	Englanti
Artikkeli	111048
Julkaisu	International Journal of Solids and Structures
Vuosikerta	225
DOI - pysyväislinkit	https://doi.org/10.1016/j.ijsolstr.2021.111048
Tila	Julkaistu - 15 elok. 2021
OKM-julkaisutyyppi	A1 Alkuperäisartikkeli tieteellisessä aikakauslehdessä

Rahoitus

This work was partially funded by the CONFIT project which belongs into SAFIR2022, The Finnish Research Programme on Nuclear Power Plant Safety 2019–2022. Main funding organisations of SAFIR2022 are the Finnish State Nuclear Waste Management Fund (VYR) and VTT Technical Research Center of Finland Ltd. Jani Vilppo wants also to thank the Auramo-foundation and the Concrete Association of Finland (BY) for financial support.

Julkaisufoorumi-taso

Jufo-taso 2

!!ASJC Scopus subject areas

Modelling and Simulation
Yleinen materiaalitiede
Condensed Matter Physics
Mechanics of Materials
Mechanical Engineering
Applied Mathematics

Pääsy asiakirjaan

10.1016/j.ijsolstr.2021.111048Lisenssi: CC BY

1-s2.0-S0020768321001323-main
CC BY
Final published version, 0,99 MBLisenssi: CC BY

http://urn.fi/URN:NBN:fi:tuni-202105275507Lisenssi: CC BY

Siteeraa tätä

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title = "Anisotropic damage model for concrete and other quasi-brittle materials",

abstract = "A thermodynamically consistent formulation to model anisotropic damage for quasi-brittle materials is proposed. The model is based on proper expressions for the specific Gibbs free energy and the complementary form of the dissipation potential. Damaging of the material is described by a symmetric positive definite second order damage tensor. Especially, the failure surface is formulated in such a way that it will mimic the behaviour of the well known Ottosen's four parameter failure surface. While testing the model against the experimental results found in literature, the results were in good agreement in uniaxial tensile and compressive loadings as well as in biaxial compression. Besides the correct failure stress states, the model predicts the correct failure modes of concrete: axial splitting along the direction of uniaxial compression and tensile damaging normal to the direction of tension.",

keywords = "Anisotropic damage, Axial splitting, Concrete, Constitutive equations, Dissipation potential, Elastic-brittle material, Failure modes, Ottosen's 4-parameter criterion, The specific Gibbs free energy",

author = "Jani Vilppo and Reijo Kouhia and Juha Hartikainen and Kari Kolari and Alexis Fedoroff and Kim Calonius",

note = "Funding Information: This work was partially funded by the CONFIT project which belongs into SAFIR2022, The Finnish Research Programme on Nuclear Power Plant Safety 2019–2022. Main funding organisations of SAFIR2022 are the Finnish State Nuclear Waste Management Fund (VYR) and VTT Technical Research Center of Finland Ltd. Funding Information: Jani Vilppo wants also to thank the Auramo-foundation and the Concrete Association of Finland (BY) for financial support. Publisher Copyright: {\textcopyright} 2021 The Authors",

year = "2021",

month = aug,

day = "15",

doi = "10.1016/j.ijsolstr.2021.111048",

language = "English",

volume = "225",

journal = "International Journal of Solids and Structures",

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TY - JOUR

T1 - Anisotropic damage model for concrete and other quasi-brittle materials

AU - Vilppo, Jani

AU - Kouhia, Reijo

AU - Hartikainen, Juha

AU - Kolari, Kari

AU - Fedoroff, Alexis

AU - Calonius, Kim

N1 - Funding Information: This work was partially funded by the CONFIT project which belongs into SAFIR2022, The Finnish Research Programme on Nuclear Power Plant Safety 2019–2022. Main funding organisations of SAFIR2022 are the Finnish State Nuclear Waste Management Fund (VYR) and VTT Technical Research Center of Finland Ltd. Funding Information: Jani Vilppo wants also to thank the Auramo-foundation and the Concrete Association of Finland (BY) for financial support. Publisher Copyright: © 2021 The Authors

PY - 2021/8/15

Y1 - 2021/8/15

N2 - A thermodynamically consistent formulation to model anisotropic damage for quasi-brittle materials is proposed. The model is based on proper expressions for the specific Gibbs free energy and the complementary form of the dissipation potential. Damaging of the material is described by a symmetric positive definite second order damage tensor. Especially, the failure surface is formulated in such a way that it will mimic the behaviour of the well known Ottosen's four parameter failure surface. While testing the model against the experimental results found in literature, the results were in good agreement in uniaxial tensile and compressive loadings as well as in biaxial compression. Besides the correct failure stress states, the model predicts the correct failure modes of concrete: axial splitting along the direction of uniaxial compression and tensile damaging normal to the direction of tension.

AB - A thermodynamically consistent formulation to model anisotropic damage for quasi-brittle materials is proposed. The model is based on proper expressions for the specific Gibbs free energy and the complementary form of the dissipation potential. Damaging of the material is described by a symmetric positive definite second order damage tensor. Especially, the failure surface is formulated in such a way that it will mimic the behaviour of the well known Ottosen's four parameter failure surface. While testing the model against the experimental results found in literature, the results were in good agreement in uniaxial tensile and compressive loadings as well as in biaxial compression. Besides the correct failure stress states, the model predicts the correct failure modes of concrete: axial splitting along the direction of uniaxial compression and tensile damaging normal to the direction of tension.

KW - Anisotropic damage

KW - Axial splitting

KW - Concrete

KW - Constitutive equations

KW - Dissipation potential

KW - Elastic-brittle material

KW - Failure modes

KW - Ottosen's 4-parameter criterion

KW - The specific Gibbs free energy

U2 - 10.1016/j.ijsolstr.2021.111048

DO - 10.1016/j.ijsolstr.2021.111048

M3 - Article

AN - SCOPUS:85105694748

SN - 0020-7683

VL - 225

JO - International Journal of Solids and Structures

JF - International Journal of Solids and Structures

M1 - 111048

ER -

Anisotropic damage model for concrete and other quasi-brittle materials

Abstrakti

Rahoitus

Julkaisufoorumi-taso

!!ASJC Scopus subject areas

Pääsy asiakirjaan

Sormenjälki

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