Change of Strength of Brittle Building Materials under High Strain and Stress Rates
- 作者: Bragov A.1, Lomunov A.1, Lamzin D.1, Konstantinov A.1
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隶属关系:
- Research Institute of Mechanics
- 期: 卷 40, 编号 3 (2019)
- 页面: 284-291
- 栏目: Article
- URL: https://journals.rcsi.science/1995-0802/article/view/204077
- DOI: https://doi.org/10.1134/S1995080219030077
- ID: 204077
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详细
Experimental results on assessing the effects of strain and stress rates on the strength of brittle building materials such as fine-grain concretes and ceramic brick are presented. Specimens of these materials were dynamically tested using the Kolsky method and its modification, the Brazilian test (or splitting test). Were obtained strain rates up to 2.5 × 103 s−1 at compression and the stress rates up to 3 × 103 GPa/s at tension. As a result of the experiments, values of the Dynamic Increase Factor (DIF) were determined for these the materials studied. Their curves as a function of strain and stress rates were constructed. The experimental data is compared with the theoretically obtained values of DIF as a function of strain rate available in the literature for fine-grain and fiber-reinforced concretes.
作者简介
A. Bragov
Research Institute of Mechanics
编辑信件的主要联系方式.
Email: bragov@mech.unn.ru
俄罗斯联邦, pr. Gagarina 23, korp. 6, Nizhny Novgorod, 603600
A. Lomunov
Research Institute of Mechanics
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Email: lomunov@mech.unn.ru
俄罗斯联邦, pr. Gagarina 23, korp. 6, Nizhny Novgorod, 603600
D. Lamzin
Research Institute of Mechanics
编辑信件的主要联系方式.
Email: lamzin.dmitry@yandex.ru
俄罗斯联邦, pr. Gagarina 23, korp. 6, Nizhny Novgorod, 603600
A. Konstantinov
Research Institute of Mechanics
编辑信件的主要联系方式.
Email: constantinov.al@yandex.ru
俄罗斯联邦, pr. Gagarina 23, korp. 6, Nizhny Novgorod, 603600
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