Fatigue life prediction method of concrete based on energy dissipation

Dong, Li Min; Zhang, Pei; He, Jintao; Bai, Peng; Zhu, Feipeng

doi:10.1016/j.conbuildmat.2017.04.030

Cited by 59 publications

(20 citation statements)

References 9 publications

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“…Such correlation was previously analyzed by Song et al, 21,22 but only for low cycle fatigue tests. A previous damage model, which was introduced by Lei et al, 23 is based on constant values of the dissipation energy E δ per load cycle and does not seem to be appropriate with the presented results in Figure 6 and Figure 7. Even if the dissipation energy is already used for a damage model and as a damage parameter 24,25 for high cycle fatigue tests, a specific analysis of the correlation is not known.…”

Section: Resultsmentioning

confidence: 78%

Energetic damage analysis regarding the fatigue of concrete

Bode

Marx

2020

Structural Concrete

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Due to the visco‐elasto‐plastic material behavior, the added energy to concrete specimens during fatigue tests is transformed into another form of energy. Besides the description of the energetic material behavior of concrete, the elastic and the plastic part of the energy as well as the dissipation energy are analyzed for different specimens. Especially the dissipation energy shows a correlation with the damage process as a result of the cyclic loading. Regarding this correlation, a new energetic damage model is introduced. With this model, a degree of damage during the tests and the development of the damage parameter over the load cycles can be determined. First tests with the developed model show good and plausible results.

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Section: Resultsmentioning

confidence: 78%

Energetic damage analysis regarding the fatigue of concrete

Bode

Marx

2020

Structural Concrete

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“…There is a part of research on the prediction of asphalt mixture fatigue life according to the principle of dissipated energy [ 29 , 30 , 31 , 32 , 33 ]. According to Van Dijk et al’s research, fatigue life mainly depends on the dissipation modulus and energy consumption during the stress–strain cycle [ 34 ].…”

Section: Introductionmentioning

confidence: 99%

Investigation of Strength and Fatigue Life of Rubber Asphalt Mixture

Yuan

Peng

et al. 2020

Materials

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Strength and fatigue life are essential parameters of pavement structure design. To accurately determine the pavement structure resistance of rubber asphalt mixture, the strength tests at various temperatures, loading rate, and fatigue tests at different stress levels were conducted in this research. Based on the proposed experiments, the change law of rubber asphalt mixture strength with different temperatures and loading rates was revealed. The phenomenological fatigue equation of rubber asphalt mixture was established. The genetic algorithm optimized backpropagation neural network (GA-BPNN) is highly reliable for optimizing production processes in civil engineering, and it has a remarkable application effect. A GA-BPNN strength and fatigue life prediction model was created in this study. The reliability of the prediction model was verified through experiments. The results showed that the rubber asphalt mixture strength decreases and increases with the increase of temperature and loading rate, respectively. The goodness of fit of the rubber asphalt mixture strength and fatigue life prediction model based on the GA-BPNN could reach 0.989 and 0.998, respectively. The indicators of the fatigue life prediction model are superior to the conventional phenomenological fatigue equation model. The GA-BPNN provides an effective method for predicting the rubber asphalt mixture strength and fatigue life, which significantly improves the accuracy of the resistance design of the rubber asphalt pavement structure.

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“…Previous research [22][23][24][25][26] has shown that the fatigue process of the bottom surface layer of the asphalt pavement is more related to the energy than to the stress in the stresscontrolled and the strain in the strain-controlled modes. The dissipated energy of each loading cycle remains approximately constant [27,28].…”

Section: Introductionmentioning

confidence: 99%

Fatigue Evaluation of Recycled Asphalt Mixture Based on Energy-Controlled Mode

Cui

Huang

2017

Advances in Materials Science and Engineering

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The fatigue properties of asphalt mixtures are important inputs for mechanistic-empirical pavement design. To understand the fatigue properties of asphalt mixtures better and to predict the fatigue life of asphalt mixtures more precisely, the energy-controlled test mode was introduced. Based on the implementation theory, the laboratory practice for the energy-controlled mode was realized using a four-point-bending fatigue test with multiple-step loading. In this mode, the fatigue performance of typical AC-20 asphalt specimens with various reclaimed asphalt pavement (RAP) contents was tested and evaluated. Results show that the variation regulation of the dissipated energy and accumulative energy is compatible with the loading control principle, which proves the feasibility of the method. In addition, the fatigue life of the asphalt mixture in the energy-controlled mode was between that for the stress-controlled and strain-controlled modes. The specimen with a higher RAP content has a longer fatigue life and better fatigue performance.

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Fatigue life prediction method of concrete based on energy dissipation

Cited by 59 publications

References 9 publications

Energetic damage analysis regarding the fatigue of concrete

Energetic damage analysis regarding the fatigue of concrete

Investigation of Strength and Fatigue Life of Rubber Asphalt Mixture

Fatigue Evaluation of Recycled Asphalt Mixture Based on Energy-Controlled Mode

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