Behavior of the Abaqus CDP model in simple stress states

Research output: Contribution to journalArticleScientificpeer-review

Abstract

In order to use the Abaqus Concrete Damaged Plasticity (CDP) material model in simulations of reinforced concrete structures, one has to understand the effect of various parameters of the material model. Although most of the material parameters can be determined from standard concrete tests, some parameters need more advanced tests to be determined. In impact simulations one often has only limited material data available, and it makes therefore sense to study the parameter sensitivity of the material model in order to fix realistic parameter values. In this paper, the sensitivity of the simulation response with respect to two model parameters is studied: the dilation angle and the tensile to compressive meridian ratio. The sensitivity study is performed in three simple but representative stress states: the uniaxial tension state, the confined uniaxial compressive state and the pure shear state. Finally, it is discussed how these simple stress states relate to the element removal criteria, which is necessary in simulations involving fragmentation.
Original languageEnglish
Pages (from-to)87-113
Number of pages27
JournalJournal of Structural Mechanics
Volume52
Issue number2
DOIs
Publication statusPublished - 16 Aug 2019
MoE publication typeA1 Journal article-refereed
EventSuomen XIII Mekaniikkapäivät - Helsinki, Finland
Duration: 29 Aug 201831 Aug 2018

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Plasticity
Concretes
Concrete construction
Reinforced concrete

Keywords

  • Material modelling
  • Elastic-plastic material with scalar damage
  • Abaqus Concrete Damaged Plasticity

Cite this

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title = "Behavior of the Abaqus CDP model in simple stress states",
abstract = "In order to use the Abaqus Concrete Damaged Plasticity (CDP) material model in simulations of reinforced concrete structures, one has to understand the effect of various parameters of the material model. Although most of the material parameters can be determined from standard concrete tests, some parameters need more advanced tests to be determined. In impact simulations one often has only limited material data available, and it makes therefore sense to study the parameter sensitivity of the material model in order to fix realistic parameter values. In this paper, the sensitivity of the simulation response with respect to two model parameters is studied: the dilation angle and the tensile to compressive meridian ratio. The sensitivity study is performed in three simple but representative stress states: the uniaxial tension state, the confined uniaxial compressive state and the pure shear state. Finally, it is discussed how these simple stress states relate to the element removal criteria, which is necessary in simulations involving fragmentation.",
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doi = "10.23998/rm.75937",
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Behavior of the Abaqus CDP model in simple stress states. / Fedoroff, Alexis; Calonius, Kim; Kuutti, Juha.

In: Journal of Structural Mechanics, Vol. 52, No. 2, 16.08.2019, p. 87-113.

Research output: Contribution to journalArticleScientificpeer-review

TY - JOUR

T1 - Behavior of the Abaqus CDP model in simple stress states

AU - Fedoroff, Alexis

AU - Calonius, Kim

AU - Kuutti, Juha

PY - 2019/8/16

Y1 - 2019/8/16

N2 - In order to use the Abaqus Concrete Damaged Plasticity (CDP) material model in simulations of reinforced concrete structures, one has to understand the effect of various parameters of the material model. Although most of the material parameters can be determined from standard concrete tests, some parameters need more advanced tests to be determined. In impact simulations one often has only limited material data available, and it makes therefore sense to study the parameter sensitivity of the material model in order to fix realistic parameter values. In this paper, the sensitivity of the simulation response with respect to two model parameters is studied: the dilation angle and the tensile to compressive meridian ratio. The sensitivity study is performed in three simple but representative stress states: the uniaxial tension state, the confined uniaxial compressive state and the pure shear state. Finally, it is discussed how these simple stress states relate to the element removal criteria, which is necessary in simulations involving fragmentation.

AB - In order to use the Abaqus Concrete Damaged Plasticity (CDP) material model in simulations of reinforced concrete structures, one has to understand the effect of various parameters of the material model. Although most of the material parameters can be determined from standard concrete tests, some parameters need more advanced tests to be determined. In impact simulations one often has only limited material data available, and it makes therefore sense to study the parameter sensitivity of the material model in order to fix realistic parameter values. In this paper, the sensitivity of the simulation response with respect to two model parameters is studied: the dilation angle and the tensile to compressive meridian ratio. The sensitivity study is performed in three simple but representative stress states: the uniaxial tension state, the confined uniaxial compressive state and the pure shear state. Finally, it is discussed how these simple stress states relate to the element removal criteria, which is necessary in simulations involving fragmentation.

KW - Material modelling

KW - Elastic-plastic material with scalar damage

KW - Abaqus Concrete Damaged Plasticity

U2 - 10.23998/rm.75937

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