Numerical analysis of bending property of bi-modulus materials and a new method for measurement of tensile elastic modulus
文献类型：期刊论文
| 作者 | Wang, Tianmin1,2; Ye, Jianhong2 |
| 刊名 | JOURNAL OF ROCK MECHANICS AND GEOTECHNICAL ENGINEERING
 |
| 出版日期 | 2023-10-01 |
| 卷号 | 15期号:10页码:2539-2555 |
| 关键词 | Bi-modulus material Uncoupled strain-driven constitutive model Three-point bending test Four-point bending test Tensile elastic modulus FssiCAS |
| ISSN号 | 1674-7755 |
| DOI | 10.1016/j.jrmge.2023.03.003 |
| 英文摘要 | In nature, there are widely distributed bi-modulus materials with different deformation characteristics under compressive and tensile stress states, such as concrete, rock and ceramics. Due to the lack of constitutive model that could reasonably consider the bi-modulus property of materials, and the lack of simple and reliable measurement methods for the tensile elastic parameters of materials, scientists and engineers always neglect the effect of the bi-modulus property of materials in engineering design and numerical simulation. To solve this problem, this study utilizes the uncoupled strain-driven constitutive model proposed by Latorre and Montans (2020) to systematically study the distributions and magnitudes of stresses and strains of bi-modulus materials in the three-point bending test through the numerical method. Furthermore, a new method to synchronously measure the tensile and compressive elastic moduli of materials through the four-point bending test is proposed. The numerical results show that the bi-modulus property of materials has a significant effect on the stress, strain and displacement in the specimen utilized in the three-point and four-point bending tests. Meanwhile, the results from the numerical tests, in which the elastic constitutive model proposed by Latorre and Montans (2020) is utilized, also indicate that the newly proposed measurement method has a good reliability. Although the new measurement method proposed in this study can synchronously and effectively measure the tensile and compressive elastic moduli, it cannot measure the tensile and compressive Poisson's ratios. (c) 2023 Institute of Rock and Soil Mechanics, Chinese Academy of Sciences. Production and hosting by Elsevier B.V. This is an open access article under the CC BY-NC-ND license (http://creativecommons.org/ licenses/by-nc-nd/4.0/). |
| 资助项目 | National Key Research and Development Program of China[2022YFC3102402] ; National Natural Science Foundation of China[51879257] |
| WOS研究方向 | Engineering |
| 语种 | 英语 |
| WOS记录号 | WOS:001070907400001 |
| 出版者 | SCIENCE PRESS |
| 源URL | [http://119.78.100.198/handle/2S6PX9GI/39523]  |
| 专题 | 中科院武汉岩土力学所 |
| 通讯作者 | Ye, Jianhong |
| 作者单位 | 1.Univ Chinese Acad Sci, Beijing 100049, Peoples R China 2.Chinese Acad Sci, Inst Rock & Soil Mech, State Key Lab Geomech & Geotech Engn, Wuhan 430071, Peoples R China |
| 推荐引用方式 GB/T 7714 | Wang, Tianmin,Ye, Jianhong. Numerical analysis of bending property of bi-modulus materials and a new method for measurement of tensile elastic modulus[J]. JOURNAL OF ROCK MECHANICS AND GEOTECHNICAL ENGINEERING,2023,15(10):2539-2555. |
| APA | Wang, Tianmin,&Ye, Jianhong.(2023).Numerical analysis of bending property of bi-modulus materials and a new method for measurement of tensile elastic modulus.JOURNAL OF ROCK MECHANICS AND GEOTECHNICAL ENGINEERING,15(10),2539-2555. |
| MLA | Wang, Tianmin,et al."Numerical analysis of bending property of bi-modulus materials and a new method for measurement of tensile elastic modulus".JOURNAL OF ROCK MECHANICS AND GEOTECHNICAL ENGINEERING 15.10(2023):2539-2555. |
入库方式： OAI收割
来源：武汉岩土力学研究所
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