Experimental study of creep-damage coupling in concrete by acoustic emission technique

被引：58
|
作者：
Saliba, J. [1 ]
Loukili, A. [1 ]
Grondin, F. [1 ]
Regoin, J. -P. [1 ]
机构：
[1] LUNAM Univ, Inst Rech Genie Civil & Mecan GeM, CNRS, Ecole Cent Nantes,UMR 6183, Nantes, France
来源：
MATERIALS AND STRUCTURES | 2012年 / 45卷 / 09期
关键词：
Acoustic emission technique; Bending creep test; Concrete; Fracture process zone; FRACTURE PROCESS ZONE; HIGH-STRENGTH CONCRETE; MODEL CONCRETE; ENERGY; MICROCRACKING; BEHAVIOR; CRACK; SIZE; MECHANICS; SUBJECT;
D O I：
10.1617/s11527-012-9840-3
中图分类号：
TU [建筑科学];
学科分类号：
0813 ;
摘要：
In order to design reliable concrete structures, prediction of long term behaviour of concrete is important by considering a coupling between creep and damage. An experimental investigation on the fracture properties of concrete beams submitted to creep bending tests with high levels of sustained load is reported. The influence of creep on the residual capacity and the fracture energy of concrete is studied. The progression of fracture is followed by the measurement of the crack mouth opening displacement during a three-point bending test. The sustained loading seems to increase the flexural strength of concrete, probably because of the consolidation of the hardened cement paste. The acoustic emission (AE) technique is used to perform the characterization of the influence of creep on the crack development. Results give wealth information on the fracture process zone (FPZ) and the propagation of the crack. A decrease in the amplitude distribution of AE hits is observed in the post-peak region for creep specimens. The width of the FPZ also decreases in this later indicating that the material has a more brittle behaviour which may be due to the development of microcracking under creep and the prestressing of the upper zone of the beam.
引用
收藏
页码：1389 / 1401
页数：13
相关论文
共 50 条
  • [1] Experimental study of creep-damage coupling in concrete by acoustic emission technique
    J. Saliba
    A. Loukili
    F. Grondin
    J.-P. Regoin
    Materials and Structures, 2012, 45 : 1389 - 1401
  • [2] Identification of damage mechanisms in concrete under high level creep by the acoustic emission technique
    Saliba, J.
    Loukili, A.
    Grondin, F.
    Regoin, J. P.
    MATERIALS AND STRUCTURES, 2014, 47 (06) : 1041 - 1053
  • [3] Damage progression study in fibre reinforced concrete using acoustic emission technique
    Banjara, Nawal Kishor
    Sasmal, Saptarshi
    Srinivas, V
    SMART STRUCTURES AND SYSTEMS, 2019, 23 (02) : 173 - 184
  • [4] Identification of damage mechanisms in concrete under high level creep by the acoustic emission technique
    J. Saliba
    A. Loukili
    F. Grondin
    J. P. Regoin
    Materials and Structures, 2014, 47 : 1041 - 1053
  • [5] Study of concrete shear damage based on acoustic emission technique
    College of Civil Engineering, Changsha University of Science and Technology, Changsha
    410114, China
    J. Railw. Sci. Eng., 2024, 10 (4214-4225): : 4214 - 4225
  • [6] Relevance of a mesoscopic modeling for the coupling between creep and damage in concrete
    Saliba, J.
    Grondin, F.
    Matallah, M.
    Loukili, A.
    Boussa, H.
    MECHANICS OF TIME-DEPENDENT MATERIALS, 2013, 17 (03) : 481 - 499
  • [7] Experimental analysis of crack evolution in concrete by the acoustic emission technique
    Saliba, J.
    Loukili, A.
    Regoin, J. P.
    Gregoire, D.
    Verdon, L.
    Pijaudier-Cabot, G.
    FRATTURA ED INTEGRITA STRUTTURALE, 2015, (34): : 300 - 308
  • [8] Applications of Acoustic Emission Technique Associated with the Fracture Process Zone in Concrete Beam - A review
    Basri, Siti Ramziah
    Bunnori, Norazura Muhamad
    Kudus, Sakhiah Abdul
    Shahidan, Shahiron
    Jamil, Mohd Nazli Md
    Noor, Noorsuhada Md
    ADVANCED MATERIALS ENGINEERING AND TECHNOLOGY, 2012, 626 : 147 - +
  • [9] Experimental approach to investigate creep-damage bilateral effects in concrete at early age
    Farah, M.
    Grondin, F.
    Alam, S. Y.
    Loukili, A.
    CEMENT & CONCRETE COMPOSITES, 2019, 96 : 128 - 137
  • [10] Damage analysis of reinforced concrete buildings by the acoustic emission technique
    Carpinteri, A.
    Lacidogna, G.
    Niccolini, G.
    STRUCTURAL CONTROL & HEALTH MONITORING, 2011, 18 (06) : 660 - 673
12345