دورية أكاديمية
Numerical studies of strength of concrete cylinders for compression
| العنوان: | Numerical studies of strength of concrete cylinders for compression |
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| المؤلفون: | Oleg V. Mkrtychev, Mikhail I. Andreev |
| المصدر: | Structural Mechanics of Engineering Constructions and Buildings, Vol 15, Iss 6, Pp 433-437 (2019) |
| بيانات النشر: | Peoples’ Friendship University of Russia (RUDN University), 2019. |
| سنة النشر: | 2019 |
| المجموعة: | LCC:Architectural engineering. Structural engineering of buildings |
| مصطلحات موضوعية: | verification, concrete model, numerical experiment, nonlinear material, concrete cylinder, uniaxial compression, volumetric finite elements, cylindrical strength, Architectural engineering. Structural engineering of buildings, TH845-895 |
| الوصف: | Relevance. The choice of adequate models of materials and deformation diagrams is of great importance when performing structural calculations in a nonlinear setting. Since there are no instructions on how to use the deformation diagrams of concrete and reinforcement when working together, given in SP 63.13330.2018, it is necessary to introduce assumptions for modeling reinforced concrete structures with finite elements of the same type. The aims of the work are to conduct numerical experiments on testing concrete cylinders for uniaxial compression and to verify the results with normative data. Methods. Numerical experiments were performed in the LS-DYNA software package. This program complex allows to simulate the joint work of concrete and reinforcement with the help of volume (for concrete) and rod (for reinforcement) finite elements. A cylinder with a diameter of 150 mm and a height of 300 mm was taken as model. Samples were modeled by volumetric finite elements. The CSCM - Continuous Surface Cap Model is a nonlinear material used to model concrete. Tests were carried out with samples of the following classes of concrete for cylindrical compressive strength: C12, C16, C20, C25, C30, C35, C40, C45, C50, C55. This corresponds to the following classes of cubic compressive strength: B15, B20, B25, B30, B37, B45, B50, B55, B60, B67. Results. The conducted researches have shown that the character of destruction of samples at numerical experiment corresponds to the character of destruction at tests. The investigated concrete model CSCM can be used in the calculation of concrete and reinforced concrete structures for the main classes of concrete, when taking into account the transition from cubic to prismatic strength and additional correction factors to cylindrical strength. |
| نوع الوثيقة: | article |
| وصف الملف: | electronic resource |
| اللغة: | English Russian |
| تدمد: | 1815-5235 2587-8700 |
| Relation: | http://journals.rudn.ru/structural-mechanics/article/viewFile/22569/17644; https://doaj.org/toc/1815-5235; https://doaj.org/toc/2587-8700 |
| DOI: | 10.22363/1815-5235-2019-15-6-433-437 |
| URL الوصول: | https://doaj.org/article/6f6f9e2f4581473e9c52c4cf473b2a74 |
| رقم الأكسشن: | edsdoj.6f6f9e2f4581473e9c52c4cf473b2a74 |
| قاعدة البيانات: | Directory of Open Access Journals |
Full Text Finder | تدمد: | 18155235 25878700 |
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| DOI: | 10.22363/1815-5235-2019-15-6-433-437 |