Numerical modelling of fibre-reinforced concrete fatigue in bending

被引:14
作者
Cachim, PB
Figueiras, JA
Pereira, PAA
机构
[1] Univ Aveiro, Dept Civil Engn, P-3810 Aveiro, Portugal
[2] Univ Porto, Fac Engn, P-4099 Oporto, Portugal
[3] Univ Minho, Dept Civil Engn, P-4800 Guimaraes, Portugal
关键词
fatigue modelling; steel fibres; fibre-reinforced concrete; viscoplasticity; flexural fatigue;
D O I
10.1016/S0142-1123(01)00093-7
中图分类号
TH [机械、仪表工业];
学科分类号
0802 ;
摘要
A numerical model for the analysis of concrete under fatigue loading is presented. It is based on viscoplasticity theory, replacing time-dependent with cycle-dependent behaviour. The analysis is performed in a two-step procedure. Initially, loads are monotonically increased until they reach their maximum level of the cyclic process, which is done with a standard non-linear analysis. Then, with the loads fixed at the maximum level, the cycles are applied to the structure and a cycle-dependent analysis is executed. Some examples that illustrate the model behaviour are presented. (C) 2002 Elsevier Science Ltd. All rights reserved.
引用
收藏
页码:381 / 387
页数:7
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