Zastosowanie reguł mechaniki uszkodzeń do oceny wzrostu odkształceń korozyjnych w warstwie przejściowej

Wieczorek, Barbara; Krykowski, Tomasz

doi:10.15199/40.2017.1.1

Cited by 3 publications

(1 citation statement)

References 3 publications

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“…Classic papers based on the analytical model of a thick-walled cylinder can be mentioned here [1,2,3], and a comprehensive review of the paper can be found in [4]. The use of computer methods allowed for a more detailed description of the problem, among others, including in the calculations additional fields related to the mass transport of aggressive substances, moisture, and heat [5], assuming an uneven and time-varying distribution of corrosion products on the circumference of the reinforcement [6,7,8,9,10,11,12,13], or the description of contact steel concrete [14]. The consequence of the implementation of computational methods was the use of advanced concrete mod-els: elastic-plastic regularized with cracking energy [15,16] implemented in the papers [17,10,18,19,20,21].…”

Section: Introductionmentioning

confidence: 99%

Analysis of Application of Gradient Concrete Models to Assess Concrete Cover Degradation Under Reinforcement Corrosion

Yurkova,

Krykowski

2023

Architecture, Civil Engineering, Environment

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The paper presents a comparative analysis of the application of two nonlocal gradient-formulated models to evaluate the concrete cover degradation time. Calculations were made taking into account the increase in the volume of the steel ring around the perimeter of the reinforcement bar. The results of the calculations were compared with the results of experimental studies published in the literature and with the elastic-plastic model based on the Menetrey-Willam surface, in which the objectivity of the obtained results depends on the fracture energy. In addition, the paper compares solutions using different contact models and cohesion models.

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Section: Introductionmentioning

confidence: 99%

Analysis of Application of Gradient Concrete Models to Assess Concrete Cover Degradation Under Reinforcement Corrosion

Yurkova,

Krykowski

2023

Architecture, Civil Engineering, Environment

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Application of the Monte Carlo Method to Evaluate the Impact of Uncertainty of Model Parameters on the Time of Concrete Cover Damage

Krykowski

2020

IOP Conf. Ser.: Mater. Sci. Eng.

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The work concerns the evaluation of the cover cracking time in corrosion conditions of reinforcement. The simulation approach using the Monte Carlo method was used to determine the limit values of corrosive volumetric strains that can be created as the result of corrosion. The calculations were made using the ATENA package, taking into account the effect of concrete curing on the cracking propagation of the test sample.

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A Cracking Model for Reinforced Concrete Cover, Taking Account of the Accumulation of Corrosion Products in the ITZ Layer, and Including Computational and Experimental Verification

et al. 2020

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The paper presents the finite element method model (FEM) which allows the forecasting of the evolution of damage in a concrete cover together with experimental verification of the model. The objective of the model is to define the corrosive volume strain tensor rate effected by corrosion, which comprises the accumulation of corrosion products in pore spaces as well as in micro-cracks which develop at the initial stage of cover degradation. The propagation of damage in the contact zone was captured by taking into account the function describing the degradation of the interface transition zone depending on the cover tightening time–critical time. The method of determining the critical time along with the method of taking into account the effective electrochemical equivalent of iron was also analyzed in this paper. The work presents the experimental verification of the model using an accelerated corrosion test of reinforcement in concrete and strain measurements with optical methods. The conducted tests demonstrate satisfactory compliance of the model with the test results.

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Zastosowanie reguł mechaniki uszkodzeń do oceny wzrostu odkształceń korozyjnych w warstwie przejściowej

Cited by 3 publications

References 3 publications

Analysis of Application of Gradient Concrete Models to Assess Concrete Cover Degradation Under Reinforcement Corrosion

Analysis of Application of Gradient Concrete Models to Assess Concrete Cover Degradation Under Reinforcement Corrosion

Application of the Monte Carlo Method to Evaluate the Impact of Uncertainty of Model Parameters on the Time of Concrete Cover Damage

A Cracking Model for Reinforced Concrete Cover, Taking Account of the Accumulation of Corrosion Products in the ITZ Layer, and Including Computational and Experimental Verification

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