Diagram and Parameters of Fatigue Sensitivity for Evaluating the Residual Strength of Layered GFRP Composites After Preliminary Cyclic Loadings

Wil’deman, V. E.; Staroverov, Oleg; Лобанов, Д. С.

doi:10.1007/s11029-018-9741-9

Cited by 19 publications

(9 citation statements)

References 23 publications

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“…Результаты, полученные на оборудовании Центра, отражены в 11 кандидатских диссертациях, 5 из которых защищены сотрудниками ЦЭМ. Некоторые научные результаты сотрудников отражены в публикациях [1][2][3][4][5][6][7][8][9][10][11][12][13][14].…”

Section: состав комплекса испытательного и измерительного оборудованиunclassified

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2019

PNRPU MB

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Section: состав комплекса испытательного и измерительного оборудованиunclassified

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2019

PNRPU MB

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“…A comprehensive reviews on fatigue of short fiber reinforced PMCs were presented by Mortazavian and Fatemi [9,14]. Another approach of the evaluation of the fatigue degradation of polymeric and PMC structures is based on various types of damage accumulation functions [97,98], in particular, viscoelastic complex moduli. According to the studies of Miyano et al [99,100] residual stress can be calculated, considering the thermoviscoelastic behavior of a PMC structure.…”

Section: Literature Review On the Self-heating Effectmentioning

confidence: 99%

Criticality of the Self-Heating Effect in Polymers and Polymer Matrix Composites during Fatigue, and Their Application in Non-Destructive Testing

Katunin

2018

Polymers

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The self-heating effect is a dangerous phenomenon that occurs in polymers and polymer matrix composites during their cyclic loading, and may significantly influence structural degradation and durability as a consequence. Therefore, an analysis of its criticality is highly demanding, due to the wide occurrence of this effect, both in laboratory fatigue tests, as well as in engineering practice. In order to overcome the problem of the accelerated degradation of polymer matrix structures, it is essential to evaluate the characteristic temperature values of self-heating, which are critical from the point of view of the fatigue life of these structures, i.e., the temperature at which damage initiates, and the safe temperature range in which these structures can be safely maintained. The experimental studies performed were focused on the determination of the critical self-heating temperature, using various approaches and measurement techniques. This paper present an overview of the research studies performed in the field of structural degradation, due to self-heating, and summarizes the studies performed on the evaluation of the criticality of the self-heating effect. Moreover, the non-destructive testing method, which uses the self-heating effect as a thermal excitation source, is discussed, and the non-destructivity of this method is confirmed by experimental results.

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“…A number of papers dedicates to experimental studies of mechanical characteristics of various classes of composites exposed to cyclic effects [1][2][3][4][5]. Staging of damage accumulation processes is noted in many of them [6][7][8][9]. The initial stage, also called the initiation stage, suggests fast damage accumulation.…”

Section: Introductionmentioning

confidence: 99%

Description of Fatigue Sensitivity Curves and Transition to Critical States of Polymer Composites by Cumulative Distribution Functions

Staroverov

Mugatarov

Yankin

et al. 2022

Frattura Ed Integrità Strutturale

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In this paper, a novel model is presented to describe the composite mechanical properties degradation during cyclic loading. The model is based on cumulative distribution functions using. Weibull probability distribution law and beta distribution are considered. The dependences of the fatigue sensitivity coefficient on the preliminary cyclic exposure are derived. The damage value function derivative using is proposed to define damage accumulation stages boundaries. Model parameters are obtained using experimental data. Determination coefficients are calculated. A high descriptive capability is noted. Rationality and expediency of using cumulative distribution functions as the approximation of experimental data on mechanical characteristics reduction after preliminary cyclic exposure is concluded.

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Diagram and Parameters of Fatigue Sensitivity for Evaluating the Residual Strength of Layered GFRP Composites After Preliminary Cyclic Loadings

Cited by 19 publications

References 23 publications

Untitled

Untitled

Criticality of the Self-Heating Effect in Polymers and Polymer Matrix Composites during Fatigue, and Their Application in Non-Destructive Testing

Description of Fatigue Sensitivity Curves and Transition to Critical States of Polymer Composites by Cumulative Distribution Functions

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