Betonda Kemo-Termo-Mekanik Yükler Altında Çatlak Oluşumunun Hesaplamalı Modellenmesi

Date

2019-09-02

Author

Ghasabeh, Mehran
Göktepe, Serdar

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https://hdl.handle.net/11511/79535

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Computational modeling of thermal and shrinkage-induced cracking in concrete Ghasabeh, Mehran; Göktepe, Serdar; Yaman, İsmail Özgür; Department of Civil Engineering (2021-3-3) This work is concerned with the computational modeling of thermal and shrinkage-induced cracking in concrete. Thermal and hygral gradients develop within concrete structures of varying sizes and aspect ratios due to the intrinsic physicochemical phenomena accompanied by adverse environmental effects. These spatio-temporal gradients invariably result in uneven volumetric deformations that can cause stress concentrations when the concrete is sufficiently rigid. Then, when the gained tensile strength is lower ...
Sulfonated styrene-co-maleic acid and its derivatives as superplasticizers in concrete Yeniay, Seçil; Aras, Leyla; Department of Chemistry (2008) In the past three decades, a new group of concrete admixtures, termed “superplasticizers”, were introduced to the concrete industry. They have gained wide acceptance because of their many advantages. The addition of superplasticizers to concrete improves the workability and strength of concrete. In this study, the effect of the chemical structure of poly (4-styrenesulfonic acid-co-maleic acid) sodium salt (SSAMA), which contains both sulfonic and carboxylic acid groups, which is a new superplasticizer, was ...
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Coupled thermomechanical analysis of concrete hardening Andiç, Halil İbrahim; Göktepe, Serdar; Yaman, İsmail Özgür; Department of Civil Engineering (2015) Thermomechanically coupled modeling of fresh concrete allows us to predict the interaction between thermal and mechanical mechanisms throughout the setting and hardening process. Because of cement hydration, an excessive temperature increase may occur in the interior regions of mass concrete structures. This temperature increase along with the thermal boundary conditions may result in thermal gradients within concrete structures. Owing to the thermal gradients and mechanical constraints, thermally induced s...
Experimental and numerical investigation of shrinkage mechanism of plain and reinforced concrete members Albostan, Utku; Kurç, Özgür; Yaman, İsmail Özgür; Department of Civil Engineering (2020-9) Concrete shrinkage is a long-term process causing a reduction in the volume of a concrete member. In the majority of the concrete models, shrinkage is considered as a uniform unrestrained shortening through the longest dimension, but in reality, due to the existence of aggregates and reinforcing bars, which restrains the shrinkage deformations, a non-homogeneous strain distribution occurs within the member. In order to measure such non-homogeneous deformations on an entire surface, digital image corre...

Citation Formats

M. Ghasabeh and S. Göktepe, “Betonda Kemo-Termo-Mekanik Yükler Altında Çatlak Oluşumunun Hesaplamalı Modellenmesi,” 2019, vol. 21, Accessed: 00, 2021. [Online]. Available: https://hdl.handle.net/11511/79535.