Static and dynamic tensile behavior of rock-concrete bi-material disc with different interface inclinations

Zhou, Zilong; Lu, Jianyou; Cai, Xun

doi:10.1016/j.conbuildmat.2020.119424

Cited by 63 publications

(16 citation statements)

References 51 publications

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“…Some exception occurs as the stress increasing rate of some specimens increased significantly in Axial strain e 1 /% approaching peak stress, such as the curve of specimens of 9 days curing time. The specimen shows clear plastic deformation characteristics under dynamic load [57][58][59][60]. In general, the strength of the specimen increases with a longer curing time.…”

Section: ) (1) the Establishment Of Shpb Experiments Systemmentioning

confidence: 99%

New non-destructive method for testing the strength of cement mortar material based on vibration frequency of steel bar: Theory and experiment

Shi

Song

Chen

et al. 2020

Construction and Building Materials

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Section: ) (1) the Establishment Of Shpb Experiments Systemmentioning

confidence: 99%

New non-destructive method for testing the strength of cement mortar material based on vibration frequency of steel bar: Theory and experiment

Shi

Song

Chen

et al. 2020

Construction and Building Materials

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“…14,21 Meanwhile, the presence of the interfacial structure makes the crack development more sensitive to the influence of nonsingular stresses. 22 In order to advance the progress of research on the mechanical properties of rock-concrete composite structures at different interface inclinations, some scholars [23][24][25] conducted a more comprehensive experimental study of the interface properties by using high-speed cameras, digital image correlation (DIC), and 3D laser scanning techniques. Selcuk and Asma 26 investigated the effects of tilted interface on the strength and damage behavior of rock-concrete specimens under uniaxial compression (UCS), splitting tension (ST), and point loading (PLS) conditions and pointed out that ST and PLS can be used as alternative methods to evaluate the fracture performance of rock-concrete specimens.…”

Section: Introductionmentioning

confidence: 99%

“…Based on this, some scholars investigated the effects of loading rate and interface roughness on the tensile damage of rock-concrete specimens under dynamic loading. 23,31 However, the current research work mainly focuses on the investigation of mechanical test parameters of the interface, such as strength, dissipation energy, and interface damage pattern. The influence of the stress condition of the interface on the damage mode has not been thoroughly discussed.…”

Section: Introductionmentioning

confidence: 99%

Dynamic splitting tensile behavior of rock–concrete bimaterial disc with multiple material types under different interface inclination angle

Chen

Feng

et al. 2022

Fatigue Fract Eng Mat Struct

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The experimental investigation on the dynamic mechanical properties and failure behavior of rock–concrete composite is of great significance for understanding the mechanical response of rock–shotcrete supporting structures. In the paper, impact splitting tests were performed on Brazilian disc specimens of the rock–concrete bimaterial with different interface inclination angles. Effects of interface inclination angle and material type on dynamic response and failure behavior under dynamic impact were analyzed experimentally. The results show that the dynamic splitting strength and energy dissipation ratio increase with the increase of interface inclination angle. However, the incorporation of fibers will reduce the splitting tensile strength. The crack‐resisting effect of sandstone–fiber concrete is more obvious, and the hysteresis plateau phenomenon appears in the post‐peak section of the stress‐time curve. The interface failure behavior is related to the stress state of the interface and can be divided into three patterns: tensile fracture, shear fracture, and interface non‐ fracture.

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“…Rock is widely used as a building material [1]. Under the action of external factors, such as load [2], temperature [3], and water [4], it will gradually be damaged and even become unstable.…”

Section: Introductionmentioning

confidence: 99%

Global Wave Velocity Change Measurement of Rock Material by Full-Waveform Correlation

Zhou

Zhao

et al. 2021

Sensors

Self Cite

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Measuring accurate wave velocity change is a crucial step in damage assessment of building materials such as rock and concrete. The anisotropy caused by the generation of cracks in the damage process and the uncertainty of the damage level of these building materials make it difficult to obtain accurate wave velocity change. We propose a new method to measure the wave velocity change of anisotropic media at any damage level by full-waveform correlation. In this method, the anisotropy caused by the generation of cracks in the damage process is considered. The accuracy of the improved method is verified by numerical simulation and compared with the existing methods. Finally, the proposed method is applied to measure the wave velocity change in the damage process of rock under uniaxial compression. We monitor the failure process of rock by acoustic emission (AE) monitoring system. Compared with the AE ringing count, the result of damage evaluation obtained by the proposed method is more accurate than the other two methods in the stage of increasing rock heterogeneity. These results show that the proposed method is feasible in damage assessment of building materials such as rock and concrete.

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Static and dynamic tensile behavior of rock-concrete bi-material disc with different interface inclinations

Cited by 63 publications

References 51 publications

New non-destructive method for testing the strength of cement mortar material based on vibration frequency of steel bar: Theory and experiment

New non-destructive method for testing the strength of cement mortar material based on vibration frequency of steel bar: Theory and experiment

Dynamic splitting tensile behavior of rock–concrete bimaterial disc with multiple material types under different interface inclination angle

Global Wave Velocity Change Measurement of Rock Material by Full-Waveform Correlation

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