A multiscale model for post-peak softening response of concrete and the role of microcracks in the interfacial transition zone

Simon, Keerthy M.; Kishen, J.M. Chandra

doi:10.1007/s00419-018-1361-2

Cited by 6 publications

(1 citation statement)

References 19 publications

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“…These initial micro-cracks randomly distribute in the concrete with different sizes, shapes and directions. The randomness of initial damages in ITZ indicates that the mechanical performance of concrete has uncertainty with respect to the microstructure of porosity and initial micro-cracks [23][24][25].…”

Section: Introductionmentioning

confidence: 99%

Coarse Aggregate Size Effect on Non-linear and Uncertainty Mechanical Behaviors for Concrete

Liu¹

2019

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A series of uniaxial compression tests and simulations were conducted to evaluate the influences of single coarse aggregate (CA) size on the mechanical properties of concrete and their uncertainties. In this research, the specimens of pure mortar matrix and specimens with diameter 15 mm and 30 mm of single spherical steel aggregate were fabricated and tested by a material testing system. Based on experimental results, the mechanical parameters, including the elastic modulus, compressive strength, strain at the peak stress and absorbed strain energy were investigated. It was found that larger size of CA results in higher elastic modulus and compressive strength. Meanwhile, the strain at peak stress and absorbed strain energy of concrete are non-linear with the size of CA. And then, the mechanical properties were analyzed in the aspect of ITZ which is closely related to the size of CA. In addition, simulation results were presented to discuss the stress distribution of different size CA in specimen. In conclusion, the CA size has significant effect on the uncertainty of elastic modulus, strain at the peak stress and absorbed strain energy, but has little effect on the compressive strength. The findings from the current study will help gain the insights into the non-linear and uncertain mechanical behaviors of concrete.

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Section: Introductionmentioning

confidence: 99%

Coarse Aggregate Size Effect on Non-linear and Uncertainty Mechanical Behaviors for Concrete

Liu¹

2019

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Role of Interfacial Transition Zone on Response of Concrete Under Tension: A Micromechanical Approach

Gupta

Kishen

2023

Lecture Notes in Mechanical Engineering

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Utilization of splitting strips in fracture mechanics tests of quasi-brittle materials

İnce

2021

Arch Appl Mech

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A multiscale model for post-peak softening response of concrete and the role of microcracks in the interfacial transition zone

Cited by 6 publications

References 19 publications

Coarse Aggregate Size Effect on Non-linear and Uncertainty Mechanical Behaviors for Concrete

Coarse Aggregate Size Effect on Non-linear and Uncertainty Mechanical Behaviors for Concrete

Role of Interfacial Transition Zone on Response of Concrete Under Tension: A Micromechanical Approach

Utilization of splitting strips in fracture mechanics tests of quasi-brittle materials

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