Experimental research on impact damage of Xiaowan arch dam model by digital image correlation

Dong, Li Min; Huang, Zhentian; Bai, Peng; Zhu, Feipeng

doi:10.1016/j.conbuildmat.2017.04.143

Cited by 21 publications

(2 citation statements)

References 9 publications

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“…In recent years, the machine vision techniques by using DIP [9][10][11] and DIC methods [12][13][14][15] are increasingly applied to structural health monitoring, which includes vibration response measurement of stayed-cables. [16][17][18][19][20] In previous work, we applied a camera and DIP methods to the single transverse vibration measurement of mine hoisting rope.…”

Section: Introductionmentioning

confidence: 99%

Stereovision-based method for free vibration measurement of a mine hoisting rope

Xiao

et al. 2022

Measurement and Control

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Currently, there are no suitable means to measure the composite vibration response of mine hoisting rope. However, machine vision-based measurement technology is a potential way to solve this problem. Therefore, a non-contact and non-intrusive stereovision method is proposed to obtain the 2D vibration displacement of a moving hoisting rope. In this methodology, a novel 3D digital image correlation (DIC) method that combines digital image processing (DIP) algorithm with 2D-DIC algorithm is developed, and the method can simplify the procedure of rope target stereo matching in two synchronous image sequences. In order to confirm the correctness of the stereovision method, some free vibration responses of a rope are measured in a hoist experimental system. Test results demonstrate that the stereovision measurement technique can keep satisfactory consistency with the laser displacement sensor for vibration data identification. The method is verified to have high adaptability to different lighting conditions and be reasonable to measure the vibration parameters of dynamic mine hoisting rope.

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Section: Introductionmentioning

confidence: 99%

Stereovision-based method for free vibration measurement of a mine hoisting rope

Xiao

et al. 2022

Measurement and Control

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“…The destruction of materials is caused by the damage evolution process of nucleation, cracking, and expansion of the internal microstructure. The damage evolution process of materials has a certain correlation with the progress of localization of the surface deformation field, and the degree of damage and the destruction of materials can be reflected by the progress of material deformation localization [1,2].…”

Section: Introductionmentioning

confidence: 99%

Deformation Localization and Damage Constitutive Model of Raw Coal and Briquette Coal under Uniaxial Compression

et al. 2022

Geofluids

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In order to compare and analyze the difference in deformation and damage law of soft and hard porous media materials, the digital image correlation is used to evaluate the heterogeneous development of strain fields of hard and brittle raw coal material and soft plastic briquette coal material under uniaxial compression. Through the defined statistical indicator, the quantitative characterization of deformation localization is realized, and the material damage constitutive model based on the statistical indicator of strain field is established. The results show that the yield stage of raw coal is not obvious, showing the characteristics of strain hardening and X-shaped macroscopic shear failure. The yield stage of briquette coal is more obvious, showing the characteristics of strain softening and a tensile failure mode. The progress of strain localization can well reflect the damage and destruction process of materials. The progress of strain localization of briquette coal can be divided into uniform deformation stage, localization stage, and failure stage, while the stage characteristics of localized evolution of raw coal is not obvious. The theoretical results of the damage constitutive model defined by statistical indicator are in good agreement with the experimental data and can well reflect the stress and strain characteristics of the two materials.

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Space–time collocation meshfree method for modeling 3D wave propagation problems

et al. 2023

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Experimental research on impact damage of Xiaowan arch dam model by digital image correlation

Cited by 21 publications

References 9 publications

Stereovision-based method for free vibration measurement of a mine hoisting rope

Stereovision-based method for free vibration measurement of a mine hoisting rope

Deformation Localization and Damage Constitutive Model of Raw Coal and Briquette Coal under Uniaxial Compression

Space–time collocation meshfree method for modeling 3D wave propagation problems

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