Modeling of multi-inclusion composites with interfacial imperfections: Micromechanical and numerical simulations

Chen, Weiqiu; Zhu, Xingyi; Huang, Zhiyi

doi:10.1007/s11431-009-0392-x

Cited by 8 publications

(3 citation statements)

References 27 publications

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“…Moreover, the highest compressive stress localization takes place in the matrix of the gyroid-TPMS. Generally, debonding affects the effective properties of composites [67][68][69][70][71]. The constituents in IPCs are three-dimensionally continuous; consequently, the possibility of debonding is reduced [34].…”

Section: Resultsmentioning

confidence: 99%

Micromechanical finite element predictions of a reduced coefficient of thermal expansion for 3D periodic architectured interpenetrating phase composites

Abueidda

Dalaq

Al‐Rub

et al. 2015

Composite Structures

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Section: Resultsmentioning

confidence: 99%

Micromechanical finite element predictions of a reduced coefficient of thermal expansion for 3D periodic architectured interpenetrating phase composites

Abueidda

Dalaq

Al‐Rub

et al. 2015

Composite Structures

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“…Using this model the initiation and propagation of cracks were studied (Figure 3), and the load-displacement curve was obtained, which is quite consistent with the laboratory experiment (Figure 4). Nazari and Riahi [71], Zhu et al [72,73] and Xu et al [74] studied the influence of inclusion and imperfect interface on the material macroscopic behavior, which explains the brittle fracture and shear dilatancy of concrete better, and plays a positive role in research of concrete local damage. Mungule [75] and Grassl [76] explored the microscopic structure of concrete containing the interfaces between aggregate and mortar, and presented the influence on the macroscopic property and the fracture process zone (FPZ).…”

Section: The Damage Mechanism Of Dam Concrete and Foundation Rockmentioning

confidence: 99%

Research advance in failure risk and local strength failure for high arch dams

Ren

Liu

2012

Chin. Sci. Bull.

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To develop national economy and use the water resources and hydropower resources sufficiently, a lot of high arch dams, with the height of more than 200 m, have been and will be built in China. Although arch dams have good mechanical behavior, there is still failure possibility due to the huge water pressure and high stress level in dam, complex topographic and geologic conditions, formidable environment and high intensity earthquake. As one of the three main aspects concerning the safety of high arch dam, the study on global destruction, has been elaborated in the literatures, and research advance in the other two aspects, namely the failure risk and local damage of high arch dams, will be reviewed in this paper. In recent years, the failure risk of high arch dams has been investigated, and the model for identifying dam failure risk factors has been established. It is shown that the foundation deterioration and strong earthquake are the major risk sources for high dam failure. With the fault tree method, the failure mode and failure probability of high arch dams are studied, and the principle for determining failure mode and the method of calculating failure probability are proposed. Meanwhile, the determination principle of acceptable risk standard for high arch dam was proposed, and the acceptable risk rate and the acceptable standard value of various risk losses were given. For the local damage of arch dam, it is pointed out that the local damage belongs to the strength failure at material level. The study on local failure mechanism of arch dam is reviewed, based on the theories that from traditional strength theory to damage mechanics and meso-mechanics theory. Aiming at the cracking, the main pattern of local failure of high concrete dam, the research advances in the analysis methods and cracking criteria for smeared crack model and discrete crack model are summarized, and the research findings of preventive measures for local failure are shown. high arch dam, failure risk, local damage, research advance Citation:Ren Q W, Li Q, Liu S. Research advance in failure risk and local strength failure for high arch dams. Chin Sci Bull, 2012Bull, , 57: 46724682, doi: 10.1007 To develop national economy, to save energy and to reduce emission, exploitation and utilization of water resources and hydropower resources are continued in China. At present, the height of arch dams under construction and to be built are of 300 m high level, such as Jinping arch dam (305 m high), Xiaowan arch dam (294.5 m high), Xiluodu arch dam (285.5 m high), and Baihetan arch dam (289 m high). The construction scale and difficulty of these dams are beyond the current design specifications, and there is hardly successful precedential reference. Moreover most of these high arch dams are located in the western region of China, where the topographic and geologic conditions are quite complex, with harsh environment and high seismic intensity as well as frequent geological disasters. In addition the resistance of dam and foundation may be red...

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“…[27]. In our previous study [28], we have developed the formulations of fast multipole BEM for the elastic analysis of composites which accounts for the effect of bonding imperfection between matrix and inclusions.…”

Section: Introductionmentioning

confidence: 99%

Fast multipole boundary element analysis of 2D viscoelastic composites with imperfect interfaces

Zhu

Chen

Huang

et al. 2010

Sci. China Technol. Sci.

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A fast multipole boundary element method (FMBEM) is developed for the analysis of 2D linear viscoelastic composites with imperfect viscoelastic interfaces. The transformed fast multipole formulations are established using the time domain method. To simulate the viscoelastic behavior of imperfect interfaces that are frequently encountered in practice, the Kelvin type model is introduced. The FMBEM is further improved by incorporating naturally the interaction among inclusions as well as eliminating the phenomenon of material penetration. Since all the integrals are evaluated analytically, high accuracy and fast convergence of the numerical scheme are obtained. Several numerical examples, including planar viscoelastic composites with a single inclusion or randomly distributed multi-inclusions are presented. The numerical results are compared with the developed analytical solutions, which illustrates that the proposed FMBEM is very efficient in determining the macroscopic viscoelastic behavior of the particle-reinforced composites with the presence of imperfect interfaces. The laboratory measurements of the mixture creep compliance of asphalt concrete are also compared with the prediction by the developed model. boundary element method, fast multipole method, viscoelasticity, imperfect interface, multi-inclusion composite Citation: Zhu X Y, Chen W Q, Huang Z Y, et al. Fast multipole boundary element analysis of 2D viscoelastic composites with imperfect interfaces.

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Modeling of multi-inclusion composites with interfacial imperfections: Micromechanical and numerical simulations

Cited by 8 publications

References 27 publications

Micromechanical finite element predictions of a reduced coefficient of thermal expansion for 3D periodic architectured interpenetrating phase composites

Micromechanical finite element predictions of a reduced coefficient of thermal expansion for 3D periodic architectured interpenetrating phase composites

Research advance in failure risk and local strength failure for high arch dams

Fast multipole boundary element analysis of 2D viscoelastic composites with imperfect interfaces

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