| STRENGTH CRITERION FOR PLAIN CONCRETE UNDER MULTIAXIAL STRESS BASED ON DAMAGE POISSON＇S RATIO |
| |
| 作者姓名： | Ding Faxing Yu Zhiwu |
| |
| 作者单位： | School of Civil Engineering and Architecture, Central South University, Changsha 410075, China |
| |
| 基金项目： | Project supported by the National Natural Science Foundation of China （Nos. 50438020 and 50578162）. |
| |
| 摘 要： | A new unified strength criterion in the principal stress space has been proposed for use with normal strength concrete （NC） and high strength concrete （HSC） in compressioncompression-tension, compression-tension-tension, triaxial tension, and biaxial stress states. The study covers concrete with strengths ranging from 20 to 130 MPa. The conception of damage Poisson＇s ratio is defined and the expression for damage Poisson＇s ratio is determined basically. The failure mechanism of concrete is illustrated, which points out that damage Poisson＇s ratio is the key to determining the failure of concrete. Furthermore, for the concrete under biaxial stress conditions, the unified strength criterion is simplified and a simplified strength criterion in the form of curves is also proposed. The strength criterion is physically meaningful and easy to calculate, which can be applied to analytic solution and numerical solution of concrete structures.
|
| 关 键 词： | 普通混凝土 标准强度混凝土 高强混凝土 泊松比 强度标准 |
| 收稿时间： | 2005-07-26 |
| 修稿时间： | 2006-11-20 |
Strength criterion for plain concrete under multiaxial stress based on damage poisson's ratio |
| |
| Ding Faxing Yu Zhiwu.Strength criterion for plain concrete under multiaxial stress based on damage poisson's ratio[J].Acta Mechanica Solida Sinica,2006,19(4):307-315. |
| |
| Institution: | 1. Department of Industrial Engineering, University of Padova, Via Venezia 1, 35131, Padova (Italy);2. Department of Management and Engineering, University of Padova, Stradella San Nicola 3, 36100, Vicenza (Italy);3. Department of Engineering Design and Materials, NTNU, Richard Birkelands vei 2b, 7491, Trondheim, (Norway);4. Institut Jean Le Rond d’Alembert, CNRS UMR 7190, Sorbonne Universités, UPMC Université Paris 06, 75252 Paris Cedex 05 (France) |
| |
| Abstract: | A new unified strength criterion in the principal stress space has been proposed for use with normal strength concrete (NC) and high strength concrete (HSC) in compression-compression-tension, compression-tension-tension, triaxial tension, and biaxial stress states. The study covers concrete with strengths ranging from 20 to 130 MPa. The conception of damage Poisson's ratio is defined and the expression for damage Poisson's ratio is determined basically. The failure mechanism of concrete is illustrated, which points out that damage Poisson's ratio is the key to determining the failure of concrete. Furthermore, for the concrete under biaxial stress conditions, the unified strength criterion is simplified and a simplified strength criterion in the form of curves is also proposed. The strength criterion is physically meaningful and easy to calculate, which can be applied to analytic solution and numerical solution of concrete structures. |
| |
| Keywords: | plain concrete high strength concrete multiaxial stress strength criterion meridian deviatoric plan |
| 本文献已被 维普 ScienceDirect 等数据库收录！ |
|
