A Modelling Framework for the Tensile Behavior of Multiple Cracking Composite

Li, Yingxiong; Chudoba, Rostislav; Bielak, Jan; Hegger, Josef

doi:10.1007/978-94-024-1194-2_49

Cited by 2 publications

(4 citation statements)

References 3 publications

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“…The former effect of matrix fragmentation leading to a fluctuating stress transfer to and from the concrete matrix between the cracks indicated in column (a) of Figure 1 can be explained and visualized using the meso-scale models explicitly reflecting the multiple-cracking and debonding during the loading process [18].…”

Section: Decomposition Of the Composite Stressmentioning

confidence: 99%

“…The possible reason is that the applied scaling rule does not account for the effect of the reinforcement ratio on the crack localization process in the matrix. An application of meso-scale models [17,18,32,33] with discrete crack representation that would additionally capture the interaction between damage localization in concrete and the stress transfer due to the finely distributed fiber and fabric reinforcement might help to analyze this effect in more detail. In addition, the interaction with the additional concrete layers made of a different material (FCC) has not been included in the model due to the lack of experimental data.…”

Section: Varying Thickness and Resolved Cross Sectionmentioning

confidence: 99%

“…In this model, the nonlinear strain-hardening response results from the evolution of discrete cracks emerging along the specimen with random matrix strength and nonliner bond stress-slip relation [16,17]. The ambition of this modeling approach is to predict the strain-hardening behavior of a particular cross-sectional design using the parameters of the material components and of the bond between the concrete and fabrics [18].…”

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

Numerical Modeling of Non-Uniformly Reinforced Carbon Concrete Lightweight Ceiling Elements

Chudoba

Sharei²,

Senckpiel‐Peters

et al. 2019

Applied Sciences

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Featured Application: The present paper contributes to the discussion on modeling methods appropriate for the structural analysis of thin-walled concrete shells, a rapidly developing field of material and structural design utilizing the high-performance cementitious composites reinforced with non-metallic reinforcement. An effective modeling support is paramount for the derivation of reliable and economic design and assessment principles in a wide range of applications.Abstract: The paper focuses on the specifics of macro-scale modeling of thin-walled textile-reinforced concrete shells. Application of layered shell finite elements requires systematic procedures for identification of material characteristics associated with the individual layers within the cross section. The identification of the material parameters describing the tensile behavior of a composite cross section is done using data obtained from the tensile test. Such test is usually performed only for a reference configurations with a simple layup of fabrics and a chosen thickness. The question is how to derive the strain-hardening response from the tensile test that is relevant for a changed cross-sectional configuration. We describe and discuss scaling and mixture rules that can be used to modify the material parameters for modified cross-sectional layups. The rules are examined in the context of the test results obtained on a shell that was reinforced non-uniformly, with varying types of textile fabrics and varying thickness within the shell surface.

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Section: Decomposition Of the Composite Stressmentioning

confidence: 99%

Section: Varying Thickness and Resolved Cross Sectionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Numerical Modeling of Non-Uniformly Reinforced Carbon Concrete Lightweight Ceiling Elements

Chudoba

Sharei²,

Senckpiel‐Peters

et al. 2019

Applied Sciences

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“…With known material characteristics of both matrix and reinforcement as well as the bond properties, the simulation of the stress-strain response and the cracking process is possible. The model used for this study was introduced in [7]. For the simulation, a defined length of a specimen is decomposed into a series of crack bridges.…”

Section: Simulation Of Stress-strain Behavior Of Cracked Composite Spmentioning

confidence: 99%

Characterization Procedure for Bond, Anchorage and Strain-Hardening Behavior of Textile-Reinforced Cementitious Composites

Bielak

Hegger

et al. 2018

The 18th International Conference on Experimental Mechanics

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A fast adoption of innovative composite materials such as textile reinforced concrete (TRC) in practice is hindered by the lack of efficient and standardized characterization and design procedures. In this paper, we discuss results of uniaxial tensile tests and double sided pullout tests. The analysis of the tests is done with a modelling framework for tensile behavior developed at IMB RWTH Aachen. The overall goal is to simulate the tensile response of composite specimen based on the reinforcement and matrix characteristics. Thus, the need for cost-intensive composite tensile tests could be reduced, which facilitates the material development and adoption of TRC in engineering practice.

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A Modelling Framework for the Tensile Behavior of Multiple Cracking Composite

Cited by 2 publications

References 3 publications

Numerical Modeling of Non-Uniformly Reinforced Carbon Concrete Lightweight Ceiling Elements

Numerical Modeling of Non-Uniformly Reinforced Carbon Concrete Lightweight Ceiling Elements

Characterization Procedure for Bond, Anchorage and Strain-Hardening Behavior of Textile-Reinforced Cementitious Composites

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