Stochastic modelling of crackwidth in reinforced concrete beams subjected to fatigue loading

2004 ◽  
Vol 26 (5) ◽  
pp. 659-667 ◽  
Author(s):  
K. Balaji Rao ◽  
T.V.S.R. Appa Rao
Keyword(s):  
Reinforced Concrete ◽  
Concrete Beams ◽  
Stochastic Modelling ◽  
Fatigue Loading ◽  
Reinforced Concrete Beams

Numerical Modelling and Bearing Capacity of Reinforced Concrete Beams

2013 ◽  
Vol 577-578 ◽  
pp. 281-284 ◽  
Author(s):  
Oldrich Sucharda ◽  
Jiri Brozovsky ◽  
David Mikolášek
Keyword(s):  
Reinforced Concrete ◽  
Numerical Modelling ◽  
Bearing Capacity ◽  
Concrete Beams ◽  
Plastic Material ◽  
Stochastic Modelling ◽  
Latin Hypercube Sampling ◽  
Reinforced Concrete Beams ◽  
Material Models ◽  
Plastic Model

This paper discusses the fracture-plastic material models for reinforced concrete and use of this model for modelling of reinforced concrete beams. Load-displacement relations and bearing capacity of reinforced concrete beams will be evaluated. A series of original (own) experiments - the beam and data from completed experiments - have been chosen for the numerical modelling. In case of the original experiments - reinforced concrete beams, stochastic modelling based on LHS (Latin Hypercube Sampling) will be carried out in order to estimate the total bearing capacity. The software used for the fracture-plastic model for reinforced concrete is ATENA.

scholarly journals Fatigue Crack Inspection and Acoustic Emission Characteristics of Precast RC Beam under Repetition Loading

2015 ◽  
Vol 773-774 ◽  
pp. 1022-1026 ◽  
Author(s):  
Md Noor Noorsuhada ◽  
Ibrahim Azmi ◽  
Muhamad Bunnori Norazura ◽  
Mohd Saman Hamidah ◽  
Mat Saliah Soffian Noor ◽  
...  
Keyword(s):  
Acoustic Emission ◽  
Fatigue Crack ◽  
Reinforced Concrete ◽  
Concrete Beam ◽  
Concrete Beams ◽  
Signal Strength ◽  
Fatigue Loading ◽  
Reinforced Concrete Beam ◽  
Crack Pattern ◽  
Reinforced Concrete Beams

Fatigue crack of the precast reinforced concrete beam under repetition loading is vital to be examined. Reinforced concrete structures exposed to excessive repetition loading could lead to the failure of the structures. In order to examine the active fatigue crack, the reinforced concrete beams were subjected to three-point repetition maximum loading. Eight phases of maximum fatigue loading with sinusoidal wave, frequency of 1 Hz and 5000 cycles for each phase were performed on the reinforced concrete beams. The inspection was carried out with visual observation of the crack pattern and acoustic emission technique for each load phase. The signal strength of acoustic emission was investigated. It is found that the signal strength of acoustic emission and crack pattern of the reinforced concrete beam subjected to repetition loadings showed promising results for structural health monitoring.

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