The model of quasi-static growth of a crack and its some application

Pavelko, Vitālijs

doi:10.1063/5.0034981

Cited by 3 publications

(2 citation statements)

References 6 publications

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“…A simplified uniparameter description of quasi-static crack growth is given by [19] at the assumption of the small-scale Dugdale-type cohesive zone. The improved version of a model is presented in [20]. The main advantage of this model is invariance of the governing differential equation in respect of geometrical configuration and the means of loading.…”

Section: Introductionmentioning

confidence: 99%

“…The main advantage of this model is invariance of the governing differential equation in respect of geometrical configuration and the means of loading. In the paper [20] there is considered some application of mentioned model for damage reconstruction in the double-cantilever beam (DCB) sample of a layered composite. Important conclusion of this research is on the non-homogeneity of the interlaminar fracture toughness (IFT) of this material.…”

Section: Introductionmentioning

confidence: 99%

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Properties of the crack resistance of layered composite and simulation of a crack quasi-static growth

Pavelko

2024

J. Phys.: Conf. Ser.

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The outcomes of standard test of a carbon/epoxy layered composite using DCB specimen for measuring of the I-mode interlaminar fracture toughness (IFT) were analysed. Using the test results and earlier developed the model of quasi-static growth of crack (delamination) in layered composite, the investigation of variable properties of IFT was continued. It is shown that the use of stationary continuous functions for mathematical description of IFT does not allow to completely satisfy to the data of test. The simplest type of stationary discontinuous function is selected for analysis and simulation: the periodic piecewise-constant function. Using the model of quasi-static growth of crack and the mentioned type of variable IFT function the process of a crack propagation in DCB sample at quasi-static loading with control of displacement is simulated. Comparison of IFT function and the crack resistance (R-curve) together with other outcomes of simulation are the base of proposed procedure of variable IFT estimation from DCB Standard test.

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Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Properties of the crack resistance of layered composite and simulation of a crack quasi-static growth

Pavelko

2024

J. Phys.: Conf. Ser.

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The crack quasi-static growth and analysis of interlaminar crack resistance of layered composite

Pavelko

2021

MATEC Web Conf.

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Using the model of quasi-static crack growth and test result of the double cantilever beam (DCB) sample of layred carbon/epoxy composite, the general regularities of the interlaminar crack resistance of mode 1 were studied. The main attention was focused on the variability of crack resistance associated, on the one hand, with the continuity of the fracture process, and, on the other hand, with the non-homogeneity of the material structure, which causes local random deviations from the average characteristics of the material.The dissipation energy rate (total crack resistance) and crack resistance function (R-curve) were extracted from test results and their properties analyzed.

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Analysis of the crack resistance of layered composite using the model of quasi-static crack growth

Pavelko¹

2023

Advances in Fracture and Damage Mechanics Xx

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The model of quasi-static growth of a crack and its some application

Cited by 3 publications

References 6 publications

Properties of the crack resistance of layered composite and simulation of a crack quasi-static growth

Properties of the crack resistance of layered composite and simulation of a crack quasi-static growth

The crack quasi-static growth and analysis of interlaminar crack resistance of layered composite

Analysis of the crack resistance of layered composite using the model of quasi-static crack growth

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